Code Definition

C1283 — Switch Test Signal Failure

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Ford

About C1283

C1283 is a manufacturer-specific chassis diagnostic trouble code recorded for Ford vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1283 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The ABS or chassis control module uses an internal switch test signal as part of its power up self test to verify the integrity of switched inputs such as the brake pedal position switch, park brake switch, and stop lamp circuit. During the self test the module pulses the test reference and looks for the expected response on the switch monitor inputs to confirm the circuit is healthy before allowing ABS, traction, and stability control to operate. DTC C1283 sets when the module fails to read the expected test signal response, indicating an open or shorted test circuit, a missing switch referen...

Join TaT to view the complete code information and diagnostic details.

Quick Facts