Power Mirror Control System (W/ Memory) - How To Proceed With Troubleshooting

Lexus IS250 IS220d GSE20 ALE20 - MIRROR


POWER MIRROR CONTROL SYSTEM (w/ Memory) - HOW TO PROCEED WITH TROUBLESHOOTING

  • HINT:
Use this procedure to troubleshoot the power mirror control system.
The intelligent tester should be used in steps 3 and 5.

1.VEHICLE BROUGHT TO WORKSHOP
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2.CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
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3.CHECK COMMUNICATION FUNCTION OF BODY MULTIPLEX COMMUNICATION SYSTEM (BEAN)
  • HINT:

Use the intelligent tester to check for normal function of the multiplex communication system.


(ECU unconnected, communication line malfunctioning) If no codes are output, proceed to A.

(ECU unconnected, communication line malfunctioning) If any codes are output, proceed to B.

B.
GO TO MULTIPLEX COMMUNICATION SYSTEM
A
4.PROBLEM SYMPTOMS TABLE
  • HINT:
NEXT
5.OVERALL ANALYSIS AND TROUBLESHOOTING

Data list / Active test

  • HINT:

Circuit inspection

Terminals of ECU

  • HINT:
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6.ADJUST, REPAIR OR REPLACE
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END