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C0062 — Longitudinal Acceleration Sensor

Generic OBD-II · all makesChassis

The C0062 code indicates a fault in the longitudinal acceleration sensor circuit. This sensor measures forward/backward acceleration and helps the vehicle's control modules manage engine and transmission behavior.

Symptoms

What causes it — most likely first

1. Faulty longitudinal acceleration sensor

The sensor itself can fail internally, giving incorrect or no readings that trigger the code.

2. Damaged wiring or connector

Corroded, broken, or loose connections to the sensor can interrupt the signal.

3. Sensor harness or terminal block issue

Internal breaks or poor contacts in the harness can cause intermittent or constant signal loss.

4. Related control module signal problem

A fault in the transmission or drivetrain control module that processes the sensor input may mimic a sensor failure.

5. Powertrain control module (PCM) fault

A rare PCM issue can misinterpret sensor data, but this is usually considered only after sensor and wiring checks.

How it's diagnosed

  1. Visually inspect the sensor, wiring, and connectors for damage or corrosion.
  2. Measure sensor voltage and resistance with a multimeter according to manufacturer specifications.
  3. Monitor live sensor data with a scan tool to verify proper voltage output during acceleration.
  4. Perform continuity and resistance tests on the sensor harness and related circuits.
  5. Replace the longitudinal acceleration sensor if it fails electrical tests.
  6. Only after sensor and wiring are verified, consider PCM replacement as a last resort.

Code facts & related codes

SystemChassis
StandardizationSAE generic — identical on every make

Frequently asked

Will replacing the PCM fix code C0062?

No. The PCM is rarely the cause; most often the sensor or its wiring must be repaired first.

Can I continue driving with this code?

The vehicle may still run, but performance can be reduced and the engine could stall, so the issue should be addressed promptly.

How long does a sensor replacement take?

A qualified technician typically completes the replacement in under an hour.

Is this code related to emissions?

It can affect emissions control indirectly, but the primary concern is drivability and vehicle performance.