ChassisC124A

Serious

Severity: Serious - have it checked soon

AWD Oil Pump Motor Speed Sensor Signal Circuit High Voltage

11 brands affected · Description from Holden data.

Key terms: ABS: anti-lock braking, which stops the wheels locking · Stability control: helps stop the car skidding · Wheel speed sensor: measures how fast each wheel turns

Safety: This code relates to engine oil pressure or oil level. Low oil pressure can destroy the engine within minutes.

1What it means in plain English

A chassis system has a fault, usually ABS, traction control or stability control, but some makes use this range for airbags, electric power steering or park brakes.

2Common causes

Faulty wheel speed sensor
Damaged sensor ring or wiring
Faulty ABS module
Low brake fluid
Wheel bearing damage

3Can I drive?

Serious · drive with care

Stop the engine as soon as it is safe and do not drive until it has been checked. Low oil pressure or a low oil level can destroy the engine within minutes.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 11

Brand	Code	Description	System
Daewoo	C124A	No description available	Chassis
GM	C124A	No description available	Chassis
Holden	C124A	AWD Oil Pump Motor Speed Sensor Signal Circuit High Voltage Brand	Chassis
Honda	C124A	No description available	Chassis
Opel	C124A	No description available	Chassis
Peugeot	C124A	No description available	Chassis
Proton	C124A	No description available	Chassis
Saab	C124A	No description available	Chassis
MG (SAIC)	C124A	Brake hydraulic monitor-auto pressure Calibration Fault Brand	Chassis
Suzuki	C124A	No description available	Chassis
Toyota	C124A	No description available	Chassis

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of C124A and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	C124A00	invalid REGEN signals received from PCM/VSC Brand	Chassis

6Related codes

Browse Cxxx codes or C124xx codes.