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Diagnostic Trouble Code Chart

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to "See page" in the DTC chart. Inspect the fuses and relays before troubleshooting the areas shown in the table below.

Wireless Door Lock Control System 

TROUBLESHOOTING CHART

DTC Code Detection item Trouble Area Refer To
B1242 Wireless Door Lock Tuner Circuit Malfunction
  1. Wire harness or connector
  2. Door control receiver
  3. Main body ECU (Instrument panel junction block)
DTC B1242 WIRELESS DOOR LOCK TUNER CIRCUIT MALFUNCTION