How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Troubleshooting of the wireless door lock control system is based on the premise that the power door lock system, the power slide door system, the power back door system and the power window system are operating normally. Therefore, before troubleshooting the wireless door lock control system, first make certain that the power door lock system, the power slide door system, the power back door system and the power window system are operating normally.

Troubleshoot in accordance with the procedures as follows.

VEHICLE BROUGHT TO WORKSHOP
1. Go to next step.
CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See CUSTOMER PROBLEM ANALYSIS CHECK )
1. Go to next step.
DTC CHECK (See DIAGNOSTIC TROUBLE CODE CHART )
1. Check for DTC and note any codes that are output.
2. Delete the DTC.
3. Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.
  1. If the DTC does not reoccur, proceed to A.
  2. If the DTC reoccur, proceed to B.
1. B: Go to step 6
2. A: Go to next step.
PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
1. When problem is not listed on problem symptoms table, proceed to A.
2. When problem is listed on problem symptoms table, proceed to B.
1. B: Go to step 6
2. A: Go to next step.
PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
1. Pre-check (See PRE-CHECK )
  1. Inspection with the hand-held tester (ECU DATA LIST)
  2. Inspection with the hand-held tester (ACTIVE TEST)
2. Terminals of ECU (See TERMINALS OF ECU )
3. On-vehicle inspection (See ON-VEHICLE INSPECTION )
ADJUST, REPAIR OR REPLACE
1. Go to next step.
CONFIRMATION TEST
1. END