C1295

CIRCUIT DESCRIPTION
This Diagnostic Trouble Code (DTC) is used to identify open Stoplamp/BTSI switch circuitry that prevents the Stoplamp/BTSI switch input to the Electronic Brake and Traction Control Module (EBTCM) from changing states when the brake is applied. This DTC is used in conjunction with DTC C1291 in order to determine the cause of an open Stoplamp/BTSI switch malfunction.

CONDITIONS FOR SETTING THE DTC
DTC C1295 can be set after initialization is completed, if the Stoplamp/BTSI switch input voltage is not within specifications for one second, indicating an open circuit, a malfunction exists.

ACTION TAKEN WHEN THE DTC SETS
^ A DTC C1295 is stored
^ The Traction Control System (TCS) is disabled.
^ The TRACTION OFF indicator is turned on
^ The ABS remains functional

CONDITIONS FOR CLEARING THE DTC
^ The condition for the DTC is no longer present and the scan tool Clear DTC function is used
^ 50 ignition cycles have passed with no DTCs detected

DIAGNOSTIC AIDS
^ Thoroughly inspect the wiring and the connectors. Failure to carefully and fully inspect the wiring and the connectors may result in misdiagnosis. Misdiagnosis may cause part replacement without repairing the malfunction.
^ The following conditions may cause an intermittent malfunction:
- A poor connection
- Rubbed through wire insulation
- A wire broken inside the insulation
^ The following conditions are other possible causes for this malfunction:
- An open in the Stoplamp/BTSI switch input circuit
- An open in all of the brake lamps
- An open or maladjusted brake lamp switch
- A wiring problem, terminal corrosion or a poor connection in the circuit
^ If an intermittent malfunction exists, refer to Troubleshooting Procedures.

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
3. This step checks for voltage at the EBTCM.
9. This step checks for stoplamp/BTSI switch.