How To Proceed With Troubleshooting

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the power door lock control system.
- The Techstream should be used in steps 3, 4and 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 LARGE-SCALE 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 -- Go to step 8
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING
(a) Terminals of ECU
Power Door Lock Control System
(b) DATA LIST/ACTIVE TEST
Power Door Lock Control System
(c) On-vehicle inspection
Power Door Lock Control System
NEXT -- Continue to next step.

7. REPAIR OR REPLACE
NEXT -- Continue to next step.

8. CONFIRMATION TEST
NEXT -- END