Initial Inspection and Diagnostic Overview

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.
- *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS
NEXT -- Continue to next step.
3. 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.
4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the LIN communication system is functioning normally.

Result





B -- Go to LIN COMMUNICATION SYSTEM
A -- Continue to next step.
5. CHECK FOR DTC*
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(c) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- Go to DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.
6. PROBLEM SYMPTOMS TABLE
(a) Refer to Problem Symptoms Table Problem Symptoms Table.

Result





B -- Go to step 8
A -- Continue to next step.
7. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Operation Check Component Tests and General Diagnostics

(b) Terminals of ECU Pinout Values and Diagnostic Parameters

(c) Data List / Active Test Scan Tool Testing and Procedures

NEXT -- Continue to next step.
8. ADJUST, REPAIR OR REPLACE
NEXT -- Continue to next step.
9. CONFIRMATION TEST
NEXT -- END