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DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)> TSB Revision MANUAL TRANSAXLE 22A-61 DIAGNOSTIC PROCEDURE STEP 1. Scan tool CAN bus diagnostics YES : Go to Step 3. Troubleshooting .) After repairing the CAN bus line, go to Step 2. STEP 2. Check whether the DTC is reset. YES : Go to Step 3. STEP 3. Scan tool diagnostic trouble code Q: Is the DTC set? YES : Perform the relevant troubleshooting. STEP 4. Check whether the DTC is reset. YES : Replace the AWC-ECU.(Refer to .) Then go to Step 5. NO : This diagnosis is complete. (The clutch protection activated in such driving or road condition as ACD STEP 5. Check whether the DTC is reset. YES : Return to Step 1. DTC C1623: Brake Controlled System (Malfunction) CAUTION • If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be • Whenever the ECU is replaced, ensure that the CAN bus lines are normal. . OPERATION AWC-ECU controls brakes for AYC control. . DTC SET CONDITIONS The code is set when the AYC brake control oper- . PROBABLE CAUSES • Malfunction of AWC-ECU |