OBD Guide
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C1305

Longitudinal Accelerometer Signal Fault

C1305 is an OBD-II diagnostic trouble code meaning: Longitudinal Accelerometer Signal Fault . Common causes: longitudinal accelerometer malfunction, wiring harness damage. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • ESP/ABS indicator is on
  • Unstable operation of the stabilization system
  • Activating the emergency system mode
  • Incorrect speedometer readings

Causes

  • Longitudinal accelerometer malfunction
  • Wiring harness damage
  • Poor contact in the sensor connector
  • Short circuit in the circuit
  • Problems with the control unit

How to Fix

  1. Carry out diagnostics with an OBD-II scanner to confirm the code
  2. Check the integrity of the wiring harness and connectors
  3. Check the resistance and voltage at the sensor
  4. Replace sensor if necessary
  5. Clear error memory and test drive

Related codes

C1300C1301C1302C1303C1304

FAQ

What does the C1305 code mean?

C1305 is an OBD-II diagnostic trouble code that indicates: Longitudinal Accelerometer Signal Fault

What causes a C1305 error code?

The most common causes of C1305 include: Longitudinal accelerometer malfunction; Wiring harness damage; Poor contact in the sensor connector; Short circuit in the circuit.

How do I fix a C1305 diagnostic trouble code?

To fix C1305: Carry out diagnostics with an OBD-II scanner to confirm the code. Check the integrity of the wiring harness and connectors. Check the resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1305?

Limited driving only, diagnose soon

How much does it cost to fix C1305?

The estimated repair cost for C1305 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat