What is the cause of the Honda CR-V B1129 fault code?

1 Answers
VonAiden
07/29/25 6:17pm
Honda CR-V B1129 fault code indicates a driver's side door lock button switch signal malfunction. Introduction to automotive fault codes: Automotive fault codes are error codes generated by the vehicle's ECU (Engine Control Unit) after analyzing malfunctions. Most fault codes are caused by sensor failures or poor sensor performance, though some mechanical faults cannot be detected by the ECU. Common automotive fault codes and their causes: P0107: Manifold Absolute Pressure (MAP) sensor input voltage too low; P0108: MAP sensor input voltage too high; P0109: Intake Air Temperature (IAT) sensor circuit malfunction or intermittent MAP sensor circuit malfunction; P0110: IAT sensor circuit intermittent malfunction.
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