Toyota 4Runner: Terminals Of Ecu

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Terminals Of Ecu

TERMINALS OF ECU

1. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the h1 multiplex network master switch connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
h1-11 (B) - h1-12 (GND)	G - W-B	Power supply	Always	11 to 14 V
h1-12 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
h1-15 (DOWN) - h1-12 (GND)	B - W-B	Power window motor down input	Ignition switch ON, driver side power window regulator switch off	11 to 14 V
h1-15 (DOWN) - h1-12 (GND)	B - W-B	Power window motor down input	Ignition switch ON, driver side power window switch down (Manual operation)	Below 1 V
h1-18 (LED) - h1-12 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
h1-18 (LED) - h1-12 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after ignition switch turned off	Below 1 V
h1-20 (UP) - h1-12 (GND)	L - W-B	Power window motor up input	Ignition switch ON, driver side power window switch off	11 to 14 V
h1-20 (UP) - h1-12 (GND)	L - W-B	Power window motor up input	Ignition switch ON, driver side power window switch up (Manual operation)	Below 1 V

If the result is not as specified, the multiplex network master switch may have a malfunction.

2. CHECK POWER WINDOW REGULATOR SWITCH ASSEMBLY

(a) Disconnect the g1 power window regulator switch connector.

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
g1-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
g1-6 (UP) - g1-1 (GND)	L - W-B	Power window motor up input	Ignition switch ON, power window regulator switch off	11 to 14 V
g1-6 (UP) - g1-1 (GND)	L - W-B	Power window motor up input	Ignition switch ON, power window regulator switch up	Below 1 V
g1-8 (AUTO) - g1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully open	11 to 14 V
g1-8 (AUTO) - g1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, power window auto up or down function operating	Below 1 V
g1-8 (AUTO) - g1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully closed	11 to 14 V
g1-4 (LED) - g1-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
g1-4 (LED) - g1-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after the ignition switch is turned off	Below 1 V
g1-7 (DOWN) - g1-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch off	11 to 14 V
g1-7 (DOWN) - g1-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch down	Below 1 V

If the result is not as specified, the power window regulator switch may have a malfunction.

3. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

(a) Disconnect the j1 rear power window regulator switch connector.

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
j1-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
j1-6 (UP) - j1-1 (GND)	L - W-B	Power window motor up input	Ignition switch ON, power window regulator switch off	11 to 14 V
j1-6 (UP) - j1-1 (GND)	L - W-B	Power window motor up input	Ignition switch ON, power window regulator switch up	Below 1 V
j1-8 (AUTO) - j1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully open	11 to 14 V
j1-8 (AUTO) - j1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, power window auto up or down function operating	Below 1 V
j1-8 (AUTO) - j1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully closed	11 to 14 V
j1-4 (LED) - j1-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
j1-4 (LED) - j1-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after the ignition switch is turned off	Below 1 V
j1-7 (DOWN) - j1-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch off	11 to 14 V
j1-7 (DOWN) - j1-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch down	Below 1 V

If the result is not as specified, the power window regulator switch may have a malfunction.

4. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

(a) Disconnect the i1 rear power window regulator switch connector.

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
i1-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
i1-6 (UP) - i1-1 (GND)	L - W-B	Power window motor up input	Ignition switch ON, power window regulator switch off	11 to 14 V
i1-6 (UP) - i1-1 (GND)	L - W-B	Power window motor up input	Ignition switch ON, power window regulator switch up	Below 1 V
i1-8 (AUTO) - i1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully open	11 to 14 V
i1-8 (AUTO) - i1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, power window auto up or down function operating	Below 1 V
i1-8 (AUTO) - i1-1 (GND)	P - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully closed	11 to 14 V
i1-4 (LED) - i1-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
i1-4 (LED) - i1-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after the ignition switch is turned off	Below 1 V
i1-7 (DOWN) - i1-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch off	11 to 14 V
i1-7 (DOWN) - i1-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch down	Below 1 V

If the result is not as specified, the rear power window regulator switch may have a malfunction.

5. CHECK BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY

(a) Disconnect the f1 back door power window regulator switch connector.

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
f1-1 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
f1-6 (UP) - f1-1 (E)	P - W-B	Power window motor up input	Ignition switch ON, power window regulator switch off	11 to 14 V
f1-6 (UP) - f1-1 (E)	P - W-B	Power window motor up input	Ignition switch ON, power window regulator switch up	Below 1 V
f1-8 (AUTO) - f1-1 (E)	B - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully open	11 to 14 V
f1-8 (AUTO) - f1-1 (E)	B - W-B	Power window motor auto up or down input	Ignition switch ON, power window auto up or down function operating	Below 1 V
f1-8 (AUTO) - f1-1 (E)	B - W-B	Power window motor auto up or down input	Ignition switch ON, door glass fully closed	11 to 14 V
f1-4 (ILL+) - f1-1 (E)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
f1-4 (ILL+) - f1-1 (E)	V - W-B	LED illumination signal	Approximately 43 seconds after the ignition switch is turned off	Below 1 V
f1-7 (DOWN) - f1-1 (E)	R - W-B	Power window motor down input	Ignition switch ON, power window regulator switch off	11 to 14 V
f1-7 (DOWN) - f1-1 (E)	R - W-B	Power window motor down input	Ignition switch ON, power window regulator switch down	Below 1 V

If the result is not as specified, the rear power window regulator switch may have a malfunction.

6. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

(a) Disconnect the I2 power window regulator motor connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
I2-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
I2-2 (B) - Body ground	R - Body ground	Battery power supply	Always	11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
I2-5 (LED) - I2-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
I2-5 (LED) - I2-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after ignition switch turned off	Below 1 V
I2-7 (DOWN) - I2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window regulator master switch off	11 to 14 V
I2-7 (DOWN) - I2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window regulator master switch down	Below 1 V
I2-7 (DOWN) - I2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, door glass fully closed	11 to 14 V
I2-7 (DOWN) - I2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window auto down function operating	Below 1 V
I2-7 (DOWN) - I2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, door glass fully open	11 to 14 V
I2-10 (UP) - I2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator master switch off	11 to 14 V
I2-10 (UP) - I2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator master switch up	Below 1 V
I2-10 (UP) - I2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully open	11 to 14 V
I2-10 (UP) - I2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window auto up function operating	Below 1 V
I2-10 (UP) - I2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully closed	11 to 14 V

If the result is not as specified, the power window regulator motor may have a malfunction.

7. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Disconnect the H2 power window regulator motor connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
H2-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
H2-2 (B) - Body ground	G - Body ground	Battery power supply	Always	11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
H2-5 (LED) - H2-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
H2-5 (LED) - H2-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after ignition switch turned off	Below 1 V
H2-7 (DOWN) - H2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window regulator switch off	11 to 14 V
H2-7 (DOWN) - H2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window regulator switch down	Below 1 V
H2-7 (DOWN) - H2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, door glass fully closed	11 to 14 V
H2-7 (DOWN) - H2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window auto down function operating	Below 1 V
H2-7 (DOWN) - H2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, door glass fully open	11 to 14 V
H2-10 (UP) - H2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator switch off	11 to 14 V
H2-10 (UP) - H2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator switch up	Below 1 V
H2-10 (UP) - H2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully open	11 to 14 V
H2-10 (UP) - H2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window auto up function operating	Below 1 V
H2-10 (UP) - H2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully closed	11 to 14 V

If the result is not as specified, the power window regulator motor may have a malfunction.

8. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

(a) Disconnect the K2 rear power window regulator motor connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
K2-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
K2-2 (B) - Body ground	W - Body ground	Battery power supply	Always	11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
K2-5 (LED) - K2-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
K2-5 (LED) - K2-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after ignition switch turned off	Below 1 V
K2-7 (DOWN) - K2-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch off	11 to 14 V
K2-7 (DOWN) - K2-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window regulator switch down	Below 1 V
K2-7 (DOWN) - K2-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, door glass fully closed	11 to 14 V
K2-7 (DOWN) - K2-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, power window auto down function operating	Below 1 V
K2-7 (DOWN) - K2-1 (GND)	B - W-B	Power window motor down input	Ignition switch ON, door glass fully open	11 to 14 V
K2-10 (UP) - K2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator switch off	11 to 14 V
K2-10 (UP) - K2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator switch up	Below 1 V
K2-10 (UP) - K2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully open	11 to 14 V
K2-10 (UP) - K2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window auto up function operating	Below 1 V
K2-10 (UP) - K2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully closed	11 to 14 V

If the result is not as specified, the rear power window regulator motor may have a malfunction.

9. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Disconnect the J2 rear window regulator motor connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
J2-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
J2-2 (B) - Body ground	W - Body ground	Battery power supply	Always	11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
J2-5 (LED) - J2-1 (GND)	V - W-B	LED illumination signal	Ignition switch ON	11 to 14 V
J2-5 (LED) - J2-1 (GND)	V - W-B	LED illumination signal	Approximately 43 seconds after ignition switch turned off	Below 1 V
J2-7 (DOWN) - J2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window regulator switch off	11 to 14 V
J2-7 (DOWN) - J2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window regulator switch down	Below 1 V
J2-7 (DOWN) - J2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, door glass fully closed	11 to 14 V
J2-7 (DOWN) - J2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, power window auto down function operating	Below 1 V
J2-7 (DOWN) - J2-1 (GND)	B - W-B	Power window motor down output	Ignition switch ON, door glass fully open	11 to 14 V
J2-10 (UP) - J2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator switch off	11 to 14 V
J2-10 (UP) - J2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window regulator switch up	Below 1 V
J2-10 (UP) - J2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully open	11 to 14 V
J2-10 (UP) - J2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, power window auto up function operating	Below 1 V
J2-10 (UP) - J2-1 (GND)	L - W-B	Power window motor up output	Ignition switch ON, door glass fully closed	11 to 14 V

If the result is not as specified, the rear power window regulator motor may have a malfunction.

10. CHECK BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY

(a) Disconnect the W9 back door power window regulator motor connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
W9-1 (GND) - Body ground	LG - Body ground	Ground	Always	Below 1 Ω
W9-2 (B) - Body ground	GR - Body ground	Battery power supply	Always	11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
W9-5 (LED) - W9-1 (GND)	L - LG	LED illumination signal	Ignition switch ON	11 to 14 V
W9-5 (LED) - W9-1 (GND)	L - LG	LED illumination signal	Approximately 43 seconds after ignition switch turned off	Below 1 V
W9-7 (DOWN) - W9-1 (GND)	B - LG	Power window motor down output	Ignition switch ON, power window regulator switch off	11 to 14 V
W9-7 (DOWN) - W9-1 (GND)	B - LG	Power window motor down output	Ignition switch ON, power window regulator switch down	Below 1 V
W9-7 (DOWN) - W9-1 (GND)	B - LG	Power window motor down output	Ignition switch ON, door glass fully closed	11 to 14 V
W9-7 (DOWN) - W9-1 (GND)	B - LG	Power window motor down output	Ignition switch ON, power window auto down function operating	Below 1 V
W9-7 (DOWN) - W9-1 (GND)	B - LG	Power window motor down output	Ignition switch ON, door glass fully open	11 to 14 V
W9-10 (UP) - W9-1 (GND)	R - LG	Power window motor up output	Ignition switch ON, power window regulator switch off	11 to 14 V
W9-10 (UP) - W9-1 (GND)	R - LG	Power window motor up output	Ignition switch ON, power window regulator switch up	Below 1 V
W9-10 (UP) - W9-1 (GND)	R - LG	Power window motor up output	Ignition switch ON, door glass fully open	11 to 14 V
W9-10 (UP) - W9-1 (GND)	R - LG	Power window motor up output	Ignition switch ON, power window auto up function operating	Below 1 V
W9-10 (UP) - W9-1 (GND)	R - LG	Power window motor up output	Ignition switch ON, door glass fully closed	11 to 14 V

If the result is not as specified, the back door power window regulator motor may have a malfunction.

11. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Remove the main body ECU (multiplex network body ECU) (See page ).

(b) Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
A-30 (BECU) - Body ground	-	Battery power supply	Always	11 to 14 V
A-31 (ALTB) - Body ground	-	Battery power supply	Always	11 to 14 V
A-32 (IG) - Body ground	-	Ignition switch power supply	Ignition switch ON	11 to 14 V
A-32 (IG) - Body ground	-	Ignition switch power supply	Ignition switch off	Below 1 V
A-29 (ACC) - Body ground	-	ACC power supply	Ignition switch ACC	11 to 14 V
A-29 (ACC) - Body ground	-	ACC power supply	Ignition switch off	Below 1 V
A-11 (GND1) - Body ground	-	Ground	Always	Below 1 Ω
F10-3 (GND2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
2F-27 (FLCY) - Body ground	R - Body ground	Front door LH courtesy switch input	Front door LH open	Below 1 V
2F-27 (FLCY) - Body ground	R - Body ground	Front door LH courtesy switch input	Front door LH closed	11 to 14 V
2B-15 (FRCY) - Body ground	B - Body ground	Front door RH courtesy switch input	Front door RH open	Below 1 V
2B-15 (FRCY) - Body ground	B - Body ground	Front door RH courtesy switch input	Front door RH closed	11 to 14 V

If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may have a malfunction.

12. CHECK MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W)

(a) Disconnect the V2 and W10 multiplex network door ECU (back door P/W) connectors.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
V2-1 (BDR) - Body ground	B - Body ground	Battery power supply	Always	11 to 14 V
V2-7 (BECU) - Body ground	L - Body ground	Battery power supply	Always	11 to 14 V
V2-8 (SIG) - Body ground	G - Body ground	Ignition switch power supply	Ignition switch ON	11 to 14 V
V2-8 (SIG) - Body ground	G - Body ground	Ignition switch power supply	Ignition switch off	Below 1 V
V2-6 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(d) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
W10-16 (BKL) - W10-8 (KEYE)*1	P - V	Tail gate control switch lock input	Back door lock key cylinder in neutral position	Pulse generation (See waveform 1 or 2)
W10-16 (BKL) - W10-8 (KEYE)*1	P - V	Tail gate control switch lock input	Back door lock key cylinder in lock position	Below 1 V
W10-15 (BKUL) - W10-8 (KEYE)*1	R - V	Tail gate control switch unlock input	Back door lock key cylinder in neutral position	Pulse generation (See waveform 1 or 2)
W10-15 (BKUL) - W10-8 (KEYE)*1	R - V	Tail gate control switch unlock input	Back door lock key cylinder in unlock position	Below 1 V
V2-22 (BUP) - V2-6 (GND)	P -W-B	Back door power window up input	Ignition switch ON, back door power window switch off	Pulse generation (See waveform 3 or 4)
V2-22 (BUP) - V2-6 (GND)	P - W-B	Back door power window up input	Ignition switch ON, back door power window switch up	Below 1 V
V2-23 (BDN) - V2-6 (GND)	R - W-B	Back door power window up input	Ignition switch ON, back door power window switch off	Pulse generation (See waveform 3 or 4)
V2-23 (BDN) - V2-6 (GND)	R - W-B	Back door power window up input	Ignition switch ON, back door power window switch down	Below 1 V
W10-24 (HSW+) - W10-7 (HSW-)	GR - LG	Back door opener switch input	Back door opener switch off	Pulse generation (See waveform 5 or 6)
W10-24 (HSW+) - W10-7 (HSW-)	GR - LG	Back door opener switch input	Back door opener switch on	Below 1 V
W10-17 (SUP) - W10-21 (E3)*2	W - B	Back door control switch input	Lock switch off	Pulse generation (See waveform 7 or 8)
W10-17 (SUP) - W10-21 (E3)*2	W - B	Back door control switch input	Lock switch on	Below 1 V
W10-9 (SDN) - W10-21 (E3)*2	SB - B	Back door control switch input	Unlock switch off	Pulse generation (See waveform 7 or 8)
W10-9 (SDN) - W10-21 (E3)*2	SB - B	Back door control switch input	Unlock switch on	Below 1 V
V2-21 (AUTO) - V2-6 (GND)	B - W-B	Back door power window auto up or auto down input	Ignition switch ON, back door power window switch off	Pulse generation (See waveform 9 or 10)
V2-21 (AUTO) - V2-6 (GND)	B - W-B	Back door power window auto up or auto down input	Ignition switch ON, back door power window switch auto up or auto down	Below 1 V
V2-3 (W) - V2-12 (SGND)	R - G	Rear wiper reverse position switch input	Ignition switch ON and rear wiper switch on or rear wiper reverse switch off	Pulse generation (See waveform 11)
V2-3 (W) - V2-12 (SGND)	R - G	Rear wiper reverse position switch input	Ignition switch ON and rear wiper switch on or rear wiper reverse switch on	Pulse generation (See waveform 12)
V2-4 (P) - V2-12 (SGND)	V - G	Rear wiper retractable position switch input	Ignition switch ON and rear wiper switch on or rear wiper retractable position switch off	Pulse generation (See waveform 13)
V2-4 (P) - V2-12 (SGND)	V - G	Rear wiper retractable position switch input	Ignition switch ON and rear wiper switch on or rear wiper retractable position switch on	Pulse generation (See waveform 14)
W10-14 (BUP2) - W10-1 (E4)	R - LG	Back door power window regulator motor up output	Ignition switch ON, back door power window regulator switch up	Pulse generation (See waveform 15)
W10-13 (BDN2) - W10-1 (E4)	B - LG	Back door power window regulator motor down output	Ignition switch ON, back door power window regulator switch down	Pulse generation (See waveform 16)
W10-12 (AUT2) - W10-1 (E4)	W - LG	Back door power window regulator motor auto up or auto down output	Ignition switch ON, back door power window auto up or auto down function operating	Pulse generation (See waveform 17)

*1: w/o Smart Key System
*2: w/ Smart Key System

If the result is not as specified, the multiplex network door ECU (back door P/W) may have a malfunction.

(e) Using an oscilloscope, check waveform 1.

Waveform 1 (Reference)

Item	Content
Terminal No. (Symbol)	W10-16 (BKL) - W10-8 (KEYE) W10-15 (BKUL) - W10-8 (KEYE)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Back door lock key cylinder in neutral position

(f) Using an oscilloscope, check waveform 2.

Waveform 2 (Reference)

Item	Content
Terminal No. (Symbol)	W10-16 (BKL) - W10-8 (KEYE) W10-15 (BKUL) - W10-8 (KEYE)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Back door lock key cylinder in neutral position

(g) Using an oscilloscope, check waveform 3.

Waveform 3 (Reference)

Item	Content
Terminal No. (Symbol)	V2-22 (BUP) - V2-6 (GND) V2-23 (BDN) - V2-6 (GND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON, back door power window switch off

(h) Using an oscilloscope, check waveform 4.

Waveform 4 (Reference)

Item	Content
Terminal No. (Symbol)	V2-22 (BUP) - V2-6 (GND) V2-23 (BDN) - V2-6 (GND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON, back door power window switch off

(i) Using an oscilloscope, check waveform 5.

Waveform 5 (Reference)

Item	Content
Terminal No. (Symbol)	W10-24 (HSW+) - W10-7 (HSW-)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Back door opener switch off

(j) Using an oscilloscope, check waveform 6.

Waveform 6 (Reference)

Item	Content
Terminal No. (Symbol)	W10-24 (HSW+) - W10-7 (HSW-)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Back door opener switch off

(k) Using an oscilloscope, check waveform 7.

Waveform 7 (Reference)

Item	Content
Terminal No. (Symbol)	W10-17 (SUP) - W10-21 (E3) W10-9 (SDN) - W10-21 (E3)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Back door control switch off

(l) Using an oscilloscope, check waveform 8.

Waveform 8 (Reference)

Item	Content
Terminal No. (Symbol)	W10-17 (SUP) - W10-21 (E3) W10-9 (SDN) - W10-21 (E3)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Back door control switch off

(m) Using an oscilloscope, check waveform 9.

Waveform 9 (Reference)

Item	Content
Terminal No. (Symbol)	V2-21 (AUTO) - V2-6 (GND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON, back door power window switch off

(n) Using an oscilloscope, check waveform 10.

Waveform 10 (Reference)

Item	Content
Terminal No. (Symbol)	V2-21 (AUTO) -V2-6 (GND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON, back door power window switch off

(o) Using an oscilloscope, check waveform 11.

Waveform 11 (Reference)

Item	Content
Terminal No. (Symbol)	V2-3 (W) - V2-12 (SGND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON and rear wiper switch on or rear wiper reverse switch off

(p) Using an oscilloscope, check waveform 12.

Waveform 12 (Reference)

Item	Content
Terminal No. (Symbol)	V2-3 (W) - V2-12 (SGND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON and rear wiper switch on or rear wiper reverse switch on

(q) Using an oscilloscope, check waveform 13.

Waveform 13 (Reference)

Item	Content
Terminal No. (Symbol)	V2-4 (P) - V2-12 (SGND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON and rear wiper switch on or rear wiper retractable position switch off

(r) Using an oscilloscope, check waveform 14.

Waveform 14 (Reference)

Item	Content
Terminal No. (Symbol)	V2-4 (P) - V2-12 (SGND)
Tool Setting	5 V/DIV., 10 ms/DIV.
Condition	Ignition switch ON and rear wiper switch on or rear wiper retractable position switch on

(s) Using an oscilloscope, check waveform 15.

Waveform 15 (Reference)

Item	Content
Terminal No. (Symbol)	W10-14 (BUP2) - W10-1 (E4)
Tool Setting	2 V/DIV., 100 ms/DIV.
Condition	Ignition switch ON, back door power window regulator switch up

(t) Using an oscilloscope, check waveform 16.

Waveform 16 (Reference)

Item	Content
Terminal No. (Symbol)	W10-13 (BDN2) - W10-1 (E4)
Tool Setting	2 V/DIV., 100 ms/DIV.
Condition	Ignition switch ON, back door power window regulator switch down

(u) Using an oscilloscope, check waveform 17.

Waveform 17 (Reference)

Item	Content
Terminal No. (Symbol)	W10-12 (AUT2) - W10-1 (E4)
Tool Setting	2 V/DIV., 100 ms/DIV.
Condition	Ignition switch ON, back door power window auto up or auto down function operating

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Dtc Check / Clear

DTC CHECK / CLEAR 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / (desired sy ...

Other materials about Toyota 4Runner:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT STEERING WHEEL FREE PLAY (a) Stop the vehicle and align the tires so that they face straight ahead. (b) Gently turn the steering wheel right and left by hand and check the steering wheel free play. ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful bec ...