Tundra 4WD V8-4.6L (1UR-FE) (2010)
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER STEERING ECU See: Relays and Modules/Relays and Modules - Steering and Suspension/Relays and
Modules - Steering/Steering Control Module/Service and Repair/Removal
Main Body ECU Communication Stop Mode
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Main Body ECU Communication Stop Mode
- Main Body 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.