C1295

Circuit Description
Diagnostic Trouble Code (DTC) C1295 identifies open brake switch circuitry that prevents the brake switch input to the Electronic Brake Control Module (EBCM) from changing states while applying the brake.

Conditions for Setting the DTC
- DTC C1295 can set after initialization is complete.
- A malfunction exists if the brake switch input voltage is out of specification for one second. An open circuit exists when the brake switch input voltage is out of specification.

Action Taken When the DTC Sets
- A malfunction DTC stores.
- ABS disables.
- The Antilock Brake System (ABS) warning indicator turns ON.

Conditions for Clearing the DTC
- The condition responsible for setting the DTC no longer exists and the Scan Tool Clear DTCs function is used.
- 100 drive cycles pass with no DTCs detected. A drive cycle consists of starting the vehicle, driving the vehicle over 16 km/h (10 mph), stopping and then turning the ignition off.

Diagnostic Aids
The following conditions may cause an intermittent malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation
Use the enhanced diagnostic function of the Scan Tool in order to measure the frequency of the malfunction.
Thoroughly inspect any circuitry that may cause the intermittent complaint for the following conditions:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal-to-wiring connections
- Physical damage to the wiring harness
- Open stoplamp switch electrical circuit
- Open stoplamp switch electrical circuit
- All brake lamp bulbs are open
- Faulty stoplamp bulb electrical circuit (open/high resistance to ground)

IMPORTANT: Zero the J 39200 test leads before making any resistance measurements. Refer to the J 39200 user's manual.