|
|
TROUBLESHOOTING CONTROLLER AREA NETWORK (CAN) 54C-64 DIAGNOSIS PROCEDURE STEP 1. Connector check: joint connector CAUTION The strand end of the twist wire should be within . When checking the joint connector, ensure that its Q: Is the check result normal? YES : Go to Step 2. NO : Repair the defective connector. Replace the STEP 2. Resistance measurement at joint CAUTION A digital multimeter should be used. For details CAUTION The test wiring harness should be used. For (1) Disconnect joint connector (CAN-HI) and the steering wheel sensor connector, and measure at the wiring harness side. (2) Turn the ignition switch to the LOCK (OFF) position. CAUTION When measuring the resistance, disconnect the . (3) Ensure that the negative battery terminal is disconnected. (4) Continuity between joint connector (CAN-HI) terminal No.6 and steering wheel sensor OK: Continuity (2 Ω or less) (5) Continuity between joint connector (CAN-HI) terminal No.17 and steering wheel sensor OK: Continuity (2 Ω or less) Q: Is the check result normal? YES : <All the resistances measure 2 Ω or less> Power supply to the steering wheel sensor − Troubleshooting . NO : <Either or all of the resistances measure Ω> Repair the wiring harness between joint connector (CAN-HI) and the Diagnosis Item 12: Diagnose when the M.U.T.-III cannot receive the data sent by 4WD-ECU <4WD>. CAUTION When servicing a CAN bus line, earth yourself by FUNCTION The diagnostic result demonstrates that "the TROUBLE JUDGEMENT CONDITIONS M.U.T.-III judges the trouble when the periodically PROBABLE CAUSES • Damaged harness wires and connectors • Power supply circuit malfunction of the 4WD-ECU • Malfunction of the 4WD-ECU DIAGNOSIS PROCEDURE STEP 1. Connector check: joint connector CAUTION The strand end of the twist wire should be within . When checking the joint connector, ensure that its Q: Is the check result normal? YES : Go to Step 2. NO : Repair the defective connector. Replace the |