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DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)> TSB Revision AUTOMATIC TRANSAXLE 23C-249 CAUTION • If there is any problem in the CAN bus lines, an incorrect trouble symptom may occur. • Whenever the ECU is replaced, ensure that the CAN bus lines are normal. . SYMPTOMS S-AWC control mode selector or AWC-ECU may . PROBABLE CAUSES • S-AWC control mode selector malfunction • Malfunction of the combination meter • Damaged harness wires and connectors • Malfunction of AWC-ECU DIAGNOSTIC PROCEDURE STEP 1. M.U.T.-III CAN bus diagnostics. YES : Go to Step 3. − Troubleshooting ). After repairing the CAN bus line, go to Step 2. STEP 2. Retest the system. YES : Intermittent malfunction. (Refer to GROUP 00 − How to Cope with Intermittent Malfunction ). NO : Go to Step 3. STEP 3. M.U.T.-III actuator test. − Combination Meter ). Q: Is the check result normal? YES : Go to Step 4. 54A − Combination Meter ). Then go to Step 13. AC901075BL Connectors: C-138, C-139 C-139 C-138 (GR) |