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.
* *: Use the Techstream.
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. CHECK COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

(a) Use the Techstream to check if the multiplex communication system (MPX) is functioning normally.





B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK COMMUNICATION FUNCTION OF LARGE-SCALE CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.





B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.

5. CHECK FUNCTION OF SUPPLEMENTAL RESTRAINT SYSTEM*

(a) Use the Techstream to check if the supplemental restraint system is functioning normally.





B -- Go to SUPPLEMENTAL RESTRAINT SYSTEM
A -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE





B -- Go to step 8
A -- Continue to next step.

7. 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.

8. REPAIR OR REPLACE

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END