Fault code lookup

ChassisC0308

Caution

Severity: Caution - get it checked when you can

Diag C I B U S C M T O

4 brands affected · Description from Ford 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 4

BrandCodeDescriptionSystem
Ashok Leyland CVC0308No description available Chassis
FordC0308Diag C I B U S C M T O BrandChassis
GMC0308Motor A/B circuit low BrandChassis
SaabC0308Motor A/B Circuit Low 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 C0308 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzC030800Failure detection in USV2 FreeWheeling part. BrandChassis
SsangYongC030800Height sensor signal FL general electrical fault BrandChassis

6Related codes

  • C0300 Rear Speed Sensor Malfunction
  • C0301 Solenoid C Of Pressure Control Electrical Problem
  • C0304 Fuel Correction Min
  • C0305 Front Speed Sensor Malfunction
  • C0306 EGR Cooler Bypass Actuator. Position Sensor. Bank 2. High Signal
  • C0307 Diag C I B U S C M T O
  • C0309 Diag C I B U S C M B Z E2 E
  • C030000 The internal Valve-Driver-ASIC register is not matching with the current actuation during...
  • C030400 USV2 defect due to Valve-Driver-ASIC Qx-Feedback.
  • C030500 The measured current through USV2 does not fit to the expected current during the ValveDr...
  • C030600 PWM deviation at USV2 detected.
  • C030700 Height sensor signal RR - general electrical fault

Browse Cxxx codes or C030xx codes.

OpenDTC - independent fault code reference