Fault code lookup

ChassisC1071

Caution

Severity: Caution - get it checked when you can

Hybrid master control unit (HCP) interface: Signal invalid

12 brands affected · Description from BMW 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

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

  1. Faulty wheel speed sensor
  2. Damaged sensor ring or wiring
  3. Faulty ABS module
  4. Low brake fluid
  5. 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 12

BrandCodeDescriptionSystem
Mercedes-BenzC1071No description available Chassis
BMWC1071Hybrid master control unit (HCP) interface: Signal invalid BrandChassis
DaewooC1071Replace Electronic Control Unit BrandChassis
HoldenC1071No description available Chassis
IsuzuC1071No description available Chassis
Land RoverC1071Front Left Compression Damper Solenoid BrandChassis
MahindraC1071Wheel Speed Sensor Ohmic Short Failure - Front Left BrandChassis
MitsubishiC1071No description available Chassis
PeugeotC1071No description available Chassis
MG (SAIC)C1071Shorted Solenoid Driver - Dump Front Right BrandChassis
SprinterC1071No description available Chassis
SuzukiC1071ESP(ABS) control module internal defect BrandChassis

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 2

These 7-character codes are manufacturer-specific variants of C1071 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongC107100Electrical fault in longitudinal acceleration sensor(G-sensor) BrandChassis
SsangYongC107101G-sensor error BrandChassis

6Related codes

Browse Cxxx codes or C107xx codes.

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