Automatic Transmission System (For 1Gr-Fe) L4 Position Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - BODY GROUND)
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - ECM)
AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE) - L4 Position Switch Circuit |
DESCRIPTION
The 4 wheel drive control ECU judges whether the transfer is in the L4 position based on the information from the limit switch inside the transfer shift actuator assembly which is detected by the ECM.The 4 wheel drive control ECU then inputs a signal to the combination meter assembly via CAN communication and turns on the 4LO indicator.
WIRING DIAGRAM
Refer to DTC P2772 (LandCruiser RM000002IR004PX_06.html).
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - BODY GROUND) |
Disconnect the G53 4 wheel drive control ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
G53-21 (L4) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*a
| Front view of wire harness connector
(to 4 Wheel Drive Control ECU)
|
| 2.CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - ECM) |
Disconnect the G53 4 wheel drive control ECU connector.
Disconnect the G55 ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
G55-8 (L4) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*a
| Rear view of wire harness connector
(to ECM)
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
