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SYMPTOM PROCEDURES TSB Revision ELECTRONIC CONTROL AWD 27C-87 STEP 2. Wiring harness check • C-128 AWD-ECU connector • C-138 Intermediate connector • D-113 Intermediate connector Check the wiring harness between the C-128 AWD-ECU con- YES : Go to Step 3. harness. Then go to Step 7. STEP 3. Scan tool MB991958 data list • Item 10: FWD SW • Item 11: LOCK SW • Item 15: AWD mode • Item 16: FL wheel speed sensor • Item 17: FR wheel speed sensor • Item 18: RL wheel speed sensor • Item 19: RR wheel speed sensor • Item 26: Throttle position Q: Does the service data meet the standard value range? YES : Go to Step 5. mode selector (refer to NO (Item16 to 19) : Perform the troubleshooting of the ABS system (Refer to GROUP 35B − Troubleshooting/DTC Chart <Vehicles with ABS>), the ASC system (Refer to GROUP 35C − Troubleshooting/DTC Chart <Vehicles with ASC>). Then go to Step 4. NO (Item26) : Perform the troubleshooting of the engine control system (Refer to GROUP 13A − Troubleshooting/DTC Chart GROUP 13B − Troubleshooting/DTC Chart
<6B3>). Then go to Step 4. |