ChassisC052B

Caution

Severity: Caution - get it checked when you can

ABS Pump Motor Control Range/Performance

13 brands affected · Generic SAE J2012 description.

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 · SAE J2012: the standard generic code list

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?

Caution · drive with care

If the code names an airbag or SRS system, the airbag may not deploy in a crash: have it diagnosed promptly. If it names electric power steering, the assist may fail and the steering can become heavy: stop safely if that happens. If it names the brakes or park brake, have it checked before driving when braking feels abnormal. Otherwise ABS and stability control may be disabled: drive carefully, especially in wet conditions, and have it checked soon.

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 13

Brand	Code	Description	System
Ashok Leyland CV	C052B	Fuel Filter. Switch. Operation Failure Brand	Chassis
Mercedes-Benz	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Daewoo	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
EOBD	C052B	ABS-pumpemotorstyring område/ydelse Brand	Chassis
GM	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Holden	C052B	ABS Pump Motor Performance Brand	Chassis
Isuzu	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Land Rover	C052B	ABS pump motor control - Range/performance Brand	Chassis
Opel	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Peugeot	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Saab	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Subaru	C052B	ABS Pump Motor Control Range/Performance SAE	Chassis
Toyota	C052B	ABS pump motor control range/performance Brand	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 9

These 7-character codes are manufacturer-specific variants of C052B and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	C052B00	OBD relevant DTC in RBS. For detailed information read Fault Memory of RBS Brand	Chassis
Mercedes-Benz	C052B17	Too high voltage on FWS. Brand	Chassis
Mercedes-Benz	C052B53	The hydraulic pump in the ESP/regenerative braking system has a malfunction. The component is deactivated. Brand	Chassis
Mercedes-Benz	C052B54	The hydraulic pump in the ESP®/regenerative braking system has a malfunction. Missing Calibration Brand	Chassis
Mercedes-Benz	C052B63	hydraulic unit is worn - value added function reached end of life Brand	Chassis
Mercedes-Benz	C052B71	The hydraulic pump in the ESP/regenerative braking system has a malfunction. The actuator is blocked. Brand	Chassis
Mercedes-Benz	C052B96	The hydraulic pump in the ESP/regenerative braking system has a malfunction. There is an internal component fault. Brand	Chassis
Mercedes-Benz	C052B97	The hydraulic pump in the ESP/regenerative braking system has a malfunction. The system function is restricted. Brand	Chassis
Mercedes-Benz	C052BFB	The hydraulic pump in the ESP/regenerative braking system has a malfunction. Counter byte when corresponding SAE Code is used more than one time Brand	Chassis

6Related codes

Browse Cxxx codes or C052xx codes.