How To Proceed With Troubleshooting

ENGINE HOOD / DOOR: POWER BACK DOOR SYSTEM:

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use the following procedures to troubleshoot the power back door system.
- The Techstream should be used in steps 3, 4 and 6.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT -- Continue to next step.
3. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)
(a) Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally.
Result:






B -- GO TO MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
4. CHECK FOR DTC
(a) Check for DTC and note any codes that are output.
(b) Delete DTC.
(c) Recheck DTC.
Result:






B -- Go to DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.
5. PROBLEM SYMPTOMS TABLE
Result:






B -- After repair, go to step 8
A -- Continue to next step.
6. OVERALL ANALYSIS AND TROUBLESHOOTING
(a) Terminals of ECU
Power Back Door System
(b) DATA LIST/ACTIVE TEST
Power Back Door System
NEXT -- Continue to next step.
7. REPAIR OR REPLACE
NEXT -- Continue to next step.
8. CONFIRMATION TEST
NEXT -- END