How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use this procedure to troubleshoot the power mirror control system with memory function.
- The hand-held tester should be used at steps 3 and 5.
- VEHICLE BROUGHT TO WORKSHOP
- NEXT: GO TO NEXT STEP.
- CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See CUSTOMER PROBLEM ANALYSIS CHECK
)
- NEXT: GO TO NEXT STEP.
- INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)
- Use the hand-held tester to check for normal function of the multiplex communication system.
- (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A.
- (ECU unconnected, communication line malfunctioning) With code outputs, proceed to B.
- GO TO MULTIPLEX COMMUNICATION SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )
- GO TO NEXT STEP.
- Use the hand-held tester to check for normal function of the multiplex communication system.
- See PROBLEM SYMPTOMS TABLE
- If the fault is not listed on the problem symptoms table, proceed to A.
- If the fault is listed on the problem symptoms table, proceed to B.
- A: Go to step 6
- B: GO TO NEXT STEP.
- OVERALL ANALYSIS AND TROUBLESHOOTING
- See ON-VEHICLE INSPECTION
- See PRE-CHECK
- Inspection with the hand-held tester (DATA LIST).
- Inspection with the hand-held tester (ACTIVE TEST).
- See TERMINALS OF ECU
- See INSPECTION
- NEXT: GO TO NEXT STEP.
- ADJUSTMENT, REPAIR OR REPLACE
- End