Tundra 2WD V8-4.6L (1UR-FE) (2010)
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: 4WD Control ECU Communication Stop Mode
- 4WD Control ECU Communication Stop Mode
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes
resistance variation.
PROCEDURE
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 the branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt
pretensioner activation.
NEXT -- Continue to next step.
2. CHECK FOR OPEN IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)
(a) Disconnect the A25 4WD control ECU connector.