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Chassis Codes (C-Codes): Full List

Chassis codes start with C and come from the ABS, traction and stability control, steering and suspension systems. They often switch on the ABS, traction or stability warning light rather than the check engine light. The most common trigger is a wheel speed sensor or its wiring, but because these systems affect braking and steering, repairs belong in a shop.

37Codes
3.1Average severity
16%High or critical
14%DIY-friendly
Severity distributionSeverity distribution

Most viewed

C0035 Chassis The ABS module lost a valid signal from the driver-side front wheel speed sensor. Moderate C0020 Chassis The ABS module saw a fault in the electric pump motor that builds brake pressure during ABS… Moderate C0021 Chassis The brake module thinks the power brake booster isn't giving the assist it should. Check pedal… High C0040 Chassis The ABS module isn't getting a usable signal from the passenger-side front wheel speed sensor. Moderate C0045 Chassis The ABS module lost a valid signal from the driver-side rear wheel speed sensor. Moderate C0050 Chassis The ABS module can't trust the passenger-side rear wheel speed signal and has shut ABS off. Moderate

All codes (32)

All Severity 3+ Severity 4+
C2200 Jeep · Chassis The ABS module found a fault in its own electronics and shut off ABS, traction and stability… Moderate C2217 Jeep · Chassis The electric power steering module found a fault inside itself and may reduce or cut steering… High

Subsystems

Brakes, ABS & Chassis 36

Systems

Powertrain 539Network 42Body 30