Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
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" in the DTC chart.
- Inspect the fuses and relays before troubleshooting the areas shown in the table below.
Wireless Door Lock Control System
DIAGNOSTIC TROUBLE CODE CHARTDTC Code Detection Item Trouble Area See B1242 Wireless Door Lock Tuner Circuit Malfunction Door control receiver Wire harness or connector Certification ECU DTC B1242 WIRELESS DOOR LOCK TUNER CIRCUIT MALFUNCTION