Toyota 4Runner: Terminals Of Ecu

Toyota 4Runner Service Manual / Power Source / Network / Networking / Can Communication System / Terminals Of Ecu

TERMINALS OF ECU

HINT:

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

NOTICE:

Before measuring the resistance, leave the vehicle for at least a minute and do not operate the ignition switch, any switches or any doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
When disconnecting the cable some systems need to be initialized after the cable is reconnected (See page ).

2. JUNCTION CONNECTOR

(a) NO. 1 JUNCTION CONNECTOR (for 4WD)

Text in Illustration

*a	for Skid Control ECU (Master Cylinder Solenoid)	*b	for No. 2 Junction Connector
*c	for Combination Meter Assembly	-	-

No. 1 Junction Connector	Wiring Color	Connect to
A36-1 (CANH)	B	Skid control ECU (master cylinder solenoid)
A36-4 (CANL)	W	Skid control ECU (master cylinder solenoid)
A36-2 (CANH)	GR	No. 2 junction connector
A36-5 (CANL)	W	No. 2 junction connector
A36-3 (CANH)	L	Combination meter assembly
A36-6 (CANL)	W	Combination meter assembly

(b) NO. 2 JUNCTION CONNECTOR

(1) V1 bus:

Text in Illustration

*a	for No. 4 Junction Connector	*b	for Main Body ECU (Multiplex Network Body ECU)
*c	for Combination Meter Assembly (for 2WD) for No. 1 Junction Connector (for 4WD)	*d	for DLC3
*e	for Airbag Sensor Assembly	*f	for Stabilizer Control ECU (w/ Kinetic Dynamic Suspension System)
*g	for Steering Angle Sensor (Spiral Cable Sub-assembly)	-	-

No. 2 Junction Connector	Wiring Color	Connect to
F59-1 (CANH)	SB	No. 4 junction connector
F59-12 (CANL)	W	No. 4 junction connector
F59-2 (CANH)	R	Main body ECU (multiplex network body ECU)
F59-13 (CANL)	W	Main body ECU (multiplex network body ECU)
F59-3 (CANH)	L1 GR2	Combination meter assembly1 No. 1 junction connector2
F59-14 (CANL)	W	Combination meter assembly1 No. 1 junction connector2
F59-4 (CANH)	V	DLC3
F59-15 (CANL)	W	DLC3
F59-5 (CANH)	Y	Airbag sensor assembly
F59-16 (CANL)	W	Airbag sensor assembly
F59-6 (CANH)	P	Stabilizer control ECU*3
F59-17 (CANL)	W	Stabilizer control ECU*3
F59-7 (CANH)	G	Steering angle sensor (spiral cable sub-assembly)
F59-18 (CANL)	W	Steering angle sensor (spiral cable sub-assembly)

*1: for 2WD
*2: for 4WD
*3: w/ Kinetic Dynamic Suspension System

(2) MS bus (w/ Seat Position Memory):

Text in Illustration

*a	for Main Body ECU (Multiplex Network Body ECU)	*b	for Combination Meter Assembly
*c	for Front Power Seat Switch LH	-	-

No. 2 Junction Connector	Wiring Color	Connect to
F93-1 (CANP)	B	Main body ECU (multiplex network body ECU)
F93-12 (CANN)	W	Main body ECU (multiplex network body ECU)
F93-2 (MSCH)	LG	Combination meter assembly
F93-13 (MSCL)	W	Combination meter assembly
F93-3 (CANP)	L	Front power seat switch LH
F93-14 (CANN)	W	Front power seat switch LH

(1) V1 bus:

Text in Illustration

*a	for No. 4 Junction Connector	*b	for ECM
*c	for Four Wheel Drive Control ECU (for 4WD)	*d	for Power Management Control ECU (w/ Smart Key System)
*e	for Power Steering ECU Assembly	*f	for Certification ECU (Smart Key ECU Assembly) (w/ Smart Key System)
*g	for Yaw Rate Sensor Assembly	*h	for Air Conditioning Amplifier Assembly (w/o Smart Key System)
*i	for Skid Control ECU (Brake Actuator Assembly) (for 2WD)	-	-

No. 3 Junction Connector	Wiring Color	Connect to
F60-1 (CANH)	GR	No. 4 junction connector
F60-12 (CANL)	W	No. 4 junction connector
F60-2 (CANH)	V	ECM
F60-13 (CANL)	W	ECM
F60-3 (CANH)	G	Four wheel drive control ECU*1
F60-14 (CANL)	W	Four wheel drive control ECU*1
F60-4 (CA1H)	P	Power management control ECU*2
F60-15 (CA1L)	W	Power management control ECU*2
F60-5 (CANH)	L	Power steering ECU assembly
F60-16 (CANL)	W	Power steering ECU assembly
F60-6 (CANH)	Y	Certification ECU (smart key ECU assembly)*2
F60-17 (CANL)	W	Certification ECU (smart key ECU assembly)*2
F60-7 (CANH)	R	Yaw rate sensor assembly
F60-18 (CANL)	W	Yaw rate sensor assembly
F60-8 (CANH)	B	Air conditioning amplifier assembly*3
F60-19 (CANL)	W	Air conditioning amplifier assembly*3
F60-9 (CANH)	LG	Skid control ECU (brake actuator assembly)*4
F60-20 (CANL)	W	Skid control ECU (brake actuator assembly)*4

*1: for 4WD
*2: w/ Smart Key System
*3: w/o Smart Key System
*4: for 2WD

(2) Power management bus (w/ Smart Key System):

Text in Illustration

*a	for ECM	*b	for Power Management Control ECU
*c	for Air Conditioning Amplifier Assembly	-	-

No. 3 Junction Connector	Wiring Color	Connect to
F83-1 (CANP)	R	ECM
F83-12 (CANN)	W	ECM
F83-2 (CA3P)	L	Power management control ECU
F83-13 (CA3N)	W	Power management control ECU
F83-3 (CANH)	B	Air conditioning amplifier assembly
F83-14 (CANL)	W	Air conditioning amplifier assembly

(d) NO. 4 JUNCTION CONNECTOR

Text in Illustration

*a	for No. 3 Junction Connector	*b	for No. 2 Junction Connector
*c	for Navigation Receiver Assembly (for Navigation Receiver Type) or Radio and Display Receiver Assembly (for Radio and Display Receiver Type)	-	-

No. 4 Junction Connector	Wiring Color	Connect to
G13-5 (CANH)	GR	No. 3 junction connector
G13-16 (CANL)	W	No. 3 junction connector
G13-6 (CANH)	SB	No. 2 junction connector
G13-17 (CANL)	W	No. 2 junction connector
G14-6 (CANH)	P	Navigation receiver assembly1 Radio and display receiver assembly2
G14-17 (CANL)	W

*1: for Navigation Receiver Type
*2: for Radio and Display Receiver Type

3. CHECK DLC3

(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F13-6 (CANH) - F13-14 (CANL)	V - W	Ignition switch off	54 to 69 Ω
F13-6 (CANH) - F13-4 (CG)	V - W-B	Ignition switch off	200 Ω or higher
F13-14 (CANL) - F13-4 (CG)	W - W-B	Ignition switch off	200 Ω or higher
F13-6 (CANH) - F13-16 (BAT)	V - GR	Ignition switch off	6 kΩ or higher
F13-14 (CANL) - F13-16 (BAT)	W - GR	Ignition switch off	6 kΩ or higher

4. CHECK ECM

Text in Illustration

for V1 Bus

for Power Management Bus (w/ Smart Key System)

(a) Disconnect the B38, F50 and F51 ECM connectors.

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

for V1 Bus

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F50-32 (CANH) - F50-31 (CANL)	V - W	Ignition switch off	108 to 132 Ω
F50-32 (CANH) - B38-12 (E1)	V - BR	Ignition switch off	200 Ω or higher
F50-31 (CANL) - B38-12 (E1)	W - BR	Ignition switch off	200 Ω or higher
F50-32 (CANH) - F51-24 (BATT)	V - L	Ignition switch off	6 kΩ or higher
F50-31 (CANL) - F51-24 (BATT)	W - L	Ignition switch off	6 kΩ or higher

for Power Management Bus (w/ Smart Key System)

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F50-34 (CANP) - F50-33 (CANN)	R - W	Ignition switch off	108 to 132 Ω
F50-34 (CANP) - B38-12 (E1)	R - BR	Ignition switch off	200 Ω or higher
F50-33 (CANN) - B38-12 (E1)	W - BR	Ignition switch off	200 Ω or higher
F50-34 (CANP) - F51-24 (BATT)	R - L	Ignition switch off	6 kΩ or higher
F50-33 (CANN) - F51-24 (BATT)	W - L	Ignition switch off	6 kΩ or higher

5. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Text in Illustration

for V1 Bus

for MS Bus (w/ CRAWL Control or w/ Seat Position Memory)

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

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

for V1 Bus

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F9-14 (CANH) - F9-13 (CANL)	R - W	Ignition switch off	54 to 69 Ω
F9-14 (CANH) - A-11 (GND1)	R - None	Ignition switch off	200 Ω or higher
F9-13 (CANL) - A-11 (GND1)	W - None	Ignition switch off	200 Ω or higher
F9-14 (CANH) - A-30 (BECU)	R - None	Ignition switch off	6 kΩ or higher
F9-13 (CANL) - A-30 (BECU)	W - None	Ignition switch off	6 kΩ or higher

for MS Bus (w/ CRAWL Control or w/ Seat Position Memory)

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F10-9 (CANP) - F10-10 (CANN)	B - W	Ignition switch off	108 to 132 Ω
F10-9 (CANP) - A-11 (GND1)	B - None	Ignition switch off	200 Ω or higher
F10-10 (CANN) - A-11 (GND1)	W - None	Ignition switch off	200 Ω or higher
F10-9 (CANP) - A-30 (BECU)	B - None	Ignition switch off	6 kΩ or higher
F10-10 (CANN) - A-30 (BECU)	W - None	Ignition switch off	6 kΩ or higher

6. CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (for 2WD)

(a) Disconnect the A53 skid control ECU (brake actuator assembly) connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
A53-25 (CANH) - A53-14 (CANL)	LG - W	Ignition switch off	54 to 69 Ω
A53-25 (CANH) - A53-1 (GND1)	LG - W-B	Ignition switch off	200 Ω or higher
A53-14 (CANL) - A53-1 (GND1)	W - W-B	Ignition switch off	200 Ω or higher
A53-25 (CANH) - A53-24 (BM)	LG - B	Ignition switch off	6 kΩ or higher
A53-14 (CANL) - A53-24 (BM)	W - B	Ignition switch off	6 kΩ or higher

7. CHECK SKID CONTROL ECU (MASTER CYLINDER SOLENOID) (for 4WD)

(a) Disconnect the A6 skid control ECU (master cylinder solenoid) connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
A6-11 (CANH) - A6-25 (CANL)	B - W	Ignition switch off	54 to 69 Ω
A6-11 (CANH) - A6-1 (GND1)	B - W-B	Ignition switch off	200 Ω or higher
A6-25 (CANL) - A6-1 (GND1)	W - W-B	Ignition switch off	200 Ω or higher
A6-11 (CANH) - A6-2 (+BM1)	B - B	Ignition switch off	6 kΩ or higher
A6-25 (CANL) - A6-2 (+BM1)	W - B	Ignition switch off	6 kΩ or higher

8. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

(a) Disconnect the F42 air conditioning amplifier assembly connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F42-11 (CANH) - F42-12 (CANL)	B - W	Ignition switch off	54 to 69 Ω
F42-11 (CANH) - F42-14 (GND)	B - W-B	Ignition switch off	200 Ω or higher
F42-12 (CANL) - F42-14 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F42-11 (CANH) - F42-21 (B)	B - V	Ignition switch off	6 kΩ or higher
F42-12 (CANL) - F42-21 (B)	W - V	Ignition switch off	6 kΩ or higher

9. CHECK STABILIZER CONTROL ECU (w/ Kinetic Dynamic Suspension System)

(a) Disconnect the F70 stabilizer control ECU connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F70-29 (CANH) - F70-28 (CANL)	P - W	Ignition switch off	54 to 69 Ω
F70-29 (CANH) - F70-22 (GND)	P - W-B	Ignition switch off	200 Ω or higher
F70-28 (CANL) - F70-22 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F70-29 (CANH) - F13-16 (BAT)	P - GR	Ignition switch off	6 kΩ or higher
F70-28 (CANL) - F13-16 (BAT)	W - GR	Ignition switch off	6 kΩ or higher

10. CHECK COMBINATION METER ASSEMBLY

Text in Illustration

for V1 Bus

for MS Bus (w/ Seat Position Memory)

(a) Disconnect the F14 combination meter assembly connector.

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

for V1 Bus

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F14-1 (CANH) - F14-2 (CANL)	L - W	Ignition switch off	108 to 132 Ω
F14-1 (CANH) - F14-20 (E1)	L - W-B	Ignition switch off	200 Ω or higher
F14-2 (CANL) - F14-20 (E1)	W - W-B	Ignition switch off	200 Ω or higher
F14-1 (CANH) - F14-15 (B)	L - L	Ignition switch off	6 kΩ or higher
F14-2 (CANL) - F14-15 (B)	W - L	Ignition switch off	6 kΩ or higher

for MS Bus (w/ Seat Position Memory)

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F14-23 (MSCH) - F14-24 (MSCL)	LG - W	Ignition switch off	108 to 132 Ω
F14-23 (MSCH) - F14-20 (E1)	LG - W-B	Ignition switch off	200 Ω or higher
F14-24 (MSCL) - F14-20 (E1)	W - W-B	Ignition switch off	200 Ω or higher
F14-23 (MSCH) - F14-15 (B)	LG - L	Ignition switch off	6 kΩ or higher
F14-24 (MSCL) - F14-15 (B)	W - L	Ignition switch off	6 kΩ or higher

11. CHECK AIRBAG SENSOR ASSEMBLY

(a) Disconnect the F33 airbag sensor assembly connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F33-13 (CANH) - F33-22 (CANL)	Y - W	Ignition switch off	54 to 69 Ω
F33-13 (CANH) - F33-25 (E1)	Y - W-B	Ignition switch off	200 Ω or higher
F33-22 (CANL) - F33-25 (E1)	W - W-B	Ignition switch off	200 Ω or higher
F33-13 (CANH) - F13-16 (BAT)	Y - GR	Ignition switch off	6 kΩ or higher
F33-22 (CANL) - F13-16 (BAT)	W - GR	Ignition switch off	6 kΩ or higher

12. CHECK STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY)

(a) Disconnect the F19 steering angle sensor (spiral cable sub-assembly) connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F19-4 (CANH) - F19-3 (CANL)	G - W	Ignition switch off	54 to 69 Ω
F19-4 (CANH) - F19-2 (ESS)	G - W-B	Ignition switch off	200 Ω or higher
F19-3 (CANL) - F19-2 (ESS)	W - W-B	Ignition switch off	200 Ω or higher
F19-4 (CANH) - F19-6 (BAT)	G - L	Ignition switch off	6 kΩ or higher
F19-3 (CANL) - F19-6 (BAT)	W - L	Ignition switch off	6 kΩ or higher

13. CHECK NAVIGATION RECEIVER ASSEMBLY (for Navigation Receiver Type)

(a) Disconnect the G6 and G37 navigation receiver assembly connectors.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
G37-9 (CANH) - G37-10 (CANL)	P - W	Ignition switch off	54 to 69 Ω
G37-9 (CANH) - G6-7 (GND)	P - BR	Ignition switch off	200 Ω or higher
G37-10 (CANL) - G6-7 (GND)	W - BR	Ignition switch off	200 Ω or higher
G37-9 (CANH) - G6-4 (B)	P - SB	Ignition switch off	6 kΩ or higher
G37-10 (CANL) - G6-4 (B)	W - SB	Ignition switch off	6 kΩ or higher

14. CHECK YAW RATE SENSOR ASSEMBLY

(a) Disconnect the F36 yaw rate sensor assembly connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F36-3 (CANH) - F36-2 (CANL)	R - W	Ignition switch off	54 to 69 Ω
F36-3 (CANH) - F36-1 (GND)	R - W-B	Ignition switch off	200 Ω or higher
F36-2 (CANL) - F36-1 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F36-3 (CANH) - F13-16 (BAT)	R - GR	Ignition switch off	6 kΩ or higher
F36-2 (CANL) - F13-16 (BAT)	W - GR	Ignition switch off	6 kΩ or higher

15. CHECK POWER STEERING ECU ASSEMBLY

(a) Disconnect the F41 power steering ECU assembly connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F41-1 (CANH) - F41-2 (CANL)	L - W	Ignition switch off	54 to 69 Ω
F41-1 (CANH) - F41-3 (GND)	L - W-B	Ignition switch off	200 Ω or higher
F41-2 (CANL) - F41-3 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F41-1 (CANH) - F13-16 (BAT)	L - GR	Ignition switch off	6 kΩ or higher
F41-2 (CANL) - F13-16 (BAT)	W - GR	Ignition switch off	6 kΩ or higher

16. CHECK FOUR WHEEL DRIVE CONTROL ECU (for 4WD)

(a) Disconnect the F47 and F46 four wheel drive control ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F47-19 (CANH) - F47-20 (CANL)	G - W	Ignition switch off	54 to 69 Ω
F47-19 (CANH) - F46-4 (GND)	G - W-B	Ignition switch off	200 Ω or higher
F47-20 (CANL) - F46-4 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F47-19 (CANH) - F13-16 (BAT)	G - GR	Ignition switch off	6 kΩ or higher
F47-20 (CANL) - F13-16 (BAT)	W - GR	Ignition switch off	6 kΩ or higher

17. CHECK POWER MANAGEMENT CONTROL ECU (w/ Smart Key System)

Text in Illustration

for V1 Bus

for Power Management Bus

(a) Disconnect the F80 power management control ECU connector.

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

for V1 Bus

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F80-14 (CA1H) - F80-13 (CA1L)	P - W	Ignition switch off	54 to 69 Ω
F80-14 (CA1H) - F80-6 (GND)	P - W-B	Ignition switch off	200 Ω or higher
F80-13 (CA1L) - F80-6 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F80-14 (CA1H) - F80-1 (AM22)	P - B	Ignition switch off	6 kΩ or higher
F80-13 (CA1L) - F80-1 (AM22)	W - B	Ignition switch off	6 kΩ or higher

for Power Management Bus

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F80-12 (CA3P) - F80-11 (CA3N)	L - W	Ignition switch off	108 to 132 Ω
F80-12 (CA3P) - F80-6 (GND)	L - W-B	Ignition switch off	200 Ω or higher
F80-11 (CA3N) - F80-6 (GND)	W - W-B	Ignition switch off	200 Ω or higher
F80-12 (CA3P) - F80-1 (AM22)	L - B	Ignition switch off	6 kΩ or higher
F80-11 (CA3N) - F80-1 (AM22)	W - B	Ignition switch off	6 kΩ or higher

18. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)

(a) Disconnect the F79 certification ECU (smart key ECU assembly) connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
F79-9 (CANH) - F79-10 (CANL)	Y - W	Ignition switch off	54 to 69 Ω
F79-9 (CANH) - F79-15 (E)	Y - W-B	Ignition switch off	200 Ω or higher
F79-10 (CANL) - F79-15 (E)	W - W-B	Ignition switch off	200 Ω or higher
F79-9 (CANH) - F79-1 (+B)	Y - V	Ignition switch off	6 kΩ or higher
F79-10 (CANL) - F79-1 (+B)	W - V	Ignition switch off	6 kΩ or higher

19. CHECK DRIVE MONITOR SWITCH (w/ CRAWL Control)

(a) Disconnect the U1 drive monitor switch connector.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
U1-1 (CANP) - U1-2 (CANN)	B - W	Ignition switch off	108 to 132 Ω
U1-1 (CANP) - U1-7 (GND)	B - W-B	Ignition switch off	200 Ω or higher
U1-2 (CANN) - U1-7 (GND)	W - W-B	Ignition switch off	200 Ω or higher
U1-1 (CANP) - U1-6 (+B)	B - L	Ignition switch off	6 kΩ or higher
U1-2 (CANN) - U1-6 (+B)	W - L	Ignition switch off	6 kΩ or higher

20. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Receiver Type)

(a) Disconnect the G48 and G49 radio and display receiver assembly connectors.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
G49-9 (CANH) - G49-10 (CANL)	P - W	Ignition switch off	54 to 69 Ω
G49-9 (CANH) - G48-7 (GND)	P - BR	Ignition switch off	200 Ω or higher
G49-10 (CANL) - G48-7 (GND)	W - BR	Ignition switch off	200 Ω or higher
G49-9 (CANH) - G48-4 (B)	P - SB	Ignition switch off	6 kΩ or higher
G49-10 (CANL) - G48-4 (B)	W - SB	Ignition switch off	6 kΩ or higher

21. CHECK FRONT POWER SEAT SWITCH LH (w/ Seat Position Memory)

(a) Disconnect the b18 and b19 front power seat switch LH connectors.

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

Terminal No. (Symbol)	Wiring Color	Switch Condition	Specified Condition
b19-8 (CANP) - b19-7 (CANN)	L - W	Ignition switch off	54 to 69 Ω
b19-8 (CANP) - b18-2 (GND)	L - W-B	Ignition switch off	200 Ω or higher
b19-7 (CANN) - b18-2 (GND)	W - W-B	Ignition switch off	200 Ω or higher
b19-8 (CANP) - b18-7 (B)	L - W	Ignition switch off	6 kΩ or higher
b19-7 (CANN) - b18-7 (B)	W - W	Ignition switch off	6 kΩ or higher

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 listed in order ...

Diagnosis System

DIAGNOSIS SYSTEM 1. BUS CHECK (a) Select "CAN Bus Check" from "System Select". 2. CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION (a) The systems (ECU ...

Other materials about Toyota 4Runner:

Yaw Rate Sensor Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Yaw Rate Sensor Communication Stop Mode Either condition is met: "Yaw Rate / Deceleration Sensor" is not displayed on the &quo ...

Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY CAUTION: Do not disassemble the retractor. (a) Before installing the seat belt, check the ELR. (1) When the inclination of the retractor is 15° or less, check that the belt can be pulled ...