C1381
Acceleration Sensor Power Supply Voltage Malfunction
C1381 is an OBD-II diagnostic trouble code meaning: Acceleration Sensor Power Supply Voltage Malfunction. Common causes: open or short circuit in the sensor wiring harness, poor contact in the acceleration sensor connector. Estimated repair cost: $56–167.
Symptoms
- The ESP/ESC indicator on the dashboard is on
- Disabling the stabilization system
- Incorrect ABS operation
- Loss of hill start assist functions
Causes
- Open or short circuit in the sensor wiring harness
- Poor contact in the acceleration sensor connector
- Malfunction of the acceleration sensor itself
- Problems with the ESP/ESC control unit
- Corroded contacts or damaged wiring
How to Fix
- Diagnostics of supply voltage on the sensor
- Checking the integrity of the wiring harness
- Inspecting and cleaning connector contacts
- Checking the sensor resistance
- Replacing the acceleration sensor if necessary
- Error reset and test drive
Related codes
FAQ
What does the C1381 code mean?
C1381 is an OBD-II diagnostic trouble code that indicates: Acceleration Sensor Power Supply Voltage Malfunction
What causes a C1381 error code?
The most common causes of C1381 include: Open or short circuit in the sensor wiring harness; Poor contact in the acceleration sensor connector; Malfunction of the acceleration sensor itself; Problems with the ESP/ESC control unit.
How do I fix a C1381 diagnostic trouble code?
To fix C1381: Diagnostics of supply voltage on the sensor. Checking the integrity of the wiring harness. Inspecting and cleaning connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1381?
Limited driving only, diagnose soon
How much does it cost to fix C1381?
The estimated repair cost for C1381 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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