Trouble Shooting: Notes
WARNING: This page is about a different car, the 2003 Toyota Camry and 2002 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
- Trouble shooting of a power door lock system complaint begins with verification of the customer problem. Using the Customer Problem Analysis (Power Door Lock Control System Check List), operate power door locks and perform system operation check. See Fig 1. See SYSTEM OPERATION CHECK . If problem occurs, go to step 3. If problem does not occur, go to next step.
- If problem does not occur, review conditions under which problem occurred for customer. For example, if the problem occurs on rainy days or during high humidity conditions, sprinkle water onto vehicle and see if malfunction occurs. DO NOT sprinkle water directly into engine compartment or onto electronic components. Visually inspect for signs of mechanical and electrical damage. Inspect for blown fuses and damaged relays. Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary. If problem still cannot be created, go to next step.
- If problem occurs, locating trouble spot must begin at the body control ECU level because it is responsible for monitoring the operation of the power door lock control system. See SELF-DIAGNOSTIC SYSTEM . Perform basic inspection. See BODY CONTROL ECU BASIC INSPECTION under SELF-DIAGNOSTIC SYSTEM. If basic inspection confirms diagnostic system is functional, retrieve Diagnostic Trouble Codes (DTCs). See RETRIEVING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM. If no DTCs exist, but symptom is present, power door lock control system must be checked by symptom. See POWER DOOR LOCK CONTROL SYSTEM SYMPTOM INDEX table under SYSTEM TESTS.
- After problem has been identified and repaired, clear DTCs and confirm repairs. See CLEARING DIAGNOSTIC TROUBLE CODES and CONFIRMATION TEST under SELF-DIAGNOSTIC SYSTEM.