C0062: Longitudinal Acceleration Sensor (Subfault)

What it means

This code identifies a fault associated with the longitudinal acceleration sensor. The specific failure depends on the diagnostic subtype.

How it works

The longitudinal acceleration sensor measures forward-and-back acceleration for the stability-control module, helping it assess braking, acceleration, and vehicle motion. C0062 flags a fault associated with this sensor; the subtype is needed to identify the precise failure condition.

Common causes

Most likely first.

1. Faulty longitudinal acceleration sensor
2. Damaged or loose sensor connector
3. Open or shorted wiring
4. Sensor misalignment or lost calibration

Symptoms

• ABS or stability control warning light
• Traction control warning light
• Stability control may be limited or disabled
• Unexpected stability control intervention

How to diagnose it

1. Read the stability-control module's freeze-frame and subtype information, then check live longitudinal-acceleration data with the vehicle stationary and during gentle acceleration or braking.
2. Inspect the sensor connector and wiring for looseness, corrosion, damaged pins, or chafing.
3. Check that the sensor is securely mounted in its specified orientation and has not shifted or been disturbed.
4. Test the sensor circuit and output using the manufacturer's procedure and specification.
5. If electrical checks pass, determine whether the subtype requires calibration or sensor replacement.

Common fixes

• Reconnect a loose longitudinal acceleration sensor connector.
• Repair damaged sensor wiring or connector terminals.
• Restore the sensor's specified mounting position and perform required calibration.
• Replace the longitudinal acceleration sensor if tests confirm it has failed.

Can I keep driving?

Stability control may be reduced or may intervene unexpectedly, while basic braking can remain available. Accelerate and brake gently, avoid slippery roads, and stop if the system applies braking unexpectedly.