How To Proceed With Troubleshooting

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: 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

Pinout Values and Diagnostic Parameters

(b) DATA LIST/ACTIVE TEST

Scan Tool Testing and Procedures

(c) On-vehicle inspection

On-Vehicle Inspection

NEXT -- Continue to next step.

7. REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END