Entry And Start System Diagnostic Trouble Code Chart

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Door Lock. Lexus Is250, Is220D. Gse20 Ale20

Entry And Start System -- Diagnostic Trouble Code Chart


HINT:
If a trouble code is indicated during the DTC check, check the circuit listed for that code in the table below. Then proceed to the appropriate page.

Power door lock control system:
DTC No.
Detection Item
Trouble Area
See page
B1242
Wireless Door Lock Tuner Circuit Malfunction
1. Electrical key antenna
2. Door control receiver
3. Wire harness
4. Certification ECU
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