Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the chart below (Proceed to the DTC testing for that circuit).
NOTE:
The DTC detection method. See PRE-CHECK .
DTC CHART
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B1242 | Wireless Door Lock Tuner Circuit Malfunction | 1. Door Control Receiver 2. Instrument Panel Junction Block Assy (Body ECU) 3. Wire Harness |