ChassisC0163

Caution

Severity: Caution - get it checked when you can

ABS/TCS brake switch circuit malfunction

5 brands affected · Description from GM 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 the braking system. Have braking checked promptly.

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

The braking system may be affected. Have it checked promptly; if the pedal feels abnormal, the car pulls when braking, or a brake warning light is on, stop safely.

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 5

Brand	Code	Description	System
GM	C0163	ABS/TCS brake switch circuit malfunction Brand	Chassis
Isuzu	C0163	No description available	Chassis
Land Rover	C0163	Struc_ABSAliveCountAndChecksumErrorCounter_PK_UI_ nzz7b Brand	Chassis
Saab	C0163	ABS/TCS Brake Switch Circuit Malfunction Brand	Chassis
Tata	C0163	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 C0163 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	C016300	HyFF reset test status not correct Brand	Chassis

6Related codes

Browse Cxxx codes or C016xx codes.