DESCRIPTION
If the front passenger side door entry unlock function does not operate but the entry lock function operates, the communication line between the vehicle and electrical key transmitter is normal. The part at fault may be an unlock sensor circuit (front door outside handle assembly [for front passenger side] → certification ECU).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) When the door control switch on the multiplex network master switch assembly
is operated, check that the doors unlock and lock according to the switch operation
(See page ).
OK:
Door locks operate normally.
NG | ![]() |
GO TO POWER DOOR LOCK CONTROL SYSTEM |
|
2. |
READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Main Body
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
FR Door Lock Pos |
Front RH side door lock position switch signal / UNLOCK or LOCK |
UNLOCK: Front RH side door unlocked LOCK: Front RH side door locked |
- |
OK:
On the Techstream screen, the display changes between LOCK and UNLOCK as shown in the chart above.
NG | ![]() |
GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Passenger Door Lock/Unlock Functions do not Operate) |
|
3. |
READ VALUE USING TECHSTREAM (UNLOCK SENSOR) |
(a) Using the Techstream, read the Data List (See page
).
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
P-Door Touch Sensor |
Front passenger side door unlock sensor / ON or OFF |
ON: Front passenger side door unlock sensor touched OFF: Front passenger side door unlock sensor not touched |
- |
OK:
"ON" (unlock sensor is touched) and "OFF" (unlock sensor is not touched) appear on the screen.
OK | ![]() |
REPLACE CERTIFICATION ECU |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - CERTIFICATION ECU) |
(a) Disconnect the L1 handle connector.
(b) Disconnect the F79 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
L1-4 (SENS) - F79-21 (SEN2) |
Always |
Below 1 Ω |
F79-21 (SEN2) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER SIDE) |
(a) Measure the voltage according to the value(s) in the table below.
*a |
Component with harness connected (Certification ECU) |
- |
- |
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F79-21 (SEN2) - F79-15 (E) |
Engine switch off, all doors locked, key not sufficiently close to vehicle and unlock sensor (for front passenger side) off → on |
Pulse generation → Below 2 V |
OK | ![]() |
REPLACE CERTIFICATION ECU |
NG | ![]() |
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER SIDE) |
Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the radio and display receiver assembly
detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction
in the radio and display receiver asse ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Lighting system data and the Diagnostic Trouble Codes (DTCs) can be read
from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be
malfunctioning, use the Techstream to check for malfunctions an ...