Code Definition

C1183 — Park Lamp Flash Relay Circuit Short to Battery

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

About C1183

C1183 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1183 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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.

C1183 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

This chassis code relates to the park lamp flash relay control circuit, which the body or security control module uses to flash the exterior park lamps for functions such as alarm arming confirmation, remote lock feedback, and hazard signalling. DTC C1183 sets when the control module detects that the relay control or feedback circuit is shorted to battery voltage, meaning it reads a high voltage on a line that it expects to switch to ground or hold low. The module monitors this circuit continuously and compares the commanded relay state against the measured voltage, flagging the fault when the...

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