C1295

CIRCUIT DESCRIPTION
This Diagnostic Trouble Code (DTC) is used to identify open Stoplamp switch circuitry that prevents the Stoplamp 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 to determine the cause of an open Stoplamp switch malfunction.

CONDITIONS FOR SETTING THE DTC
Diagnostic Trouble Code (DTC) C1295 can be set after initialization is completed. If the Stoplamp switch input voltage is out of specification for one second indicating an open circuit, a malfunction exists.

ACTION TAKEN WHEN THE DTC SETS
Antilock Brake System (ABS) remains enabled, Traction Control System (TCS)/Active Handling (if equipped with RPO JL4) are disabled.
^ Indicators that turn on:
- Car Icon (TCS indicator)
^ Messages displayed on the Driver Information Center (DIC):
- Service Traction System
- Service Active HNDLG (if equipped with RPO JL4)

CONDITIONS FOR CLEARING THE DTC
^ Condition for Diagnostic Trouble Code (DTC) is no longer present and Scan tool clear DTC function is used.
^ Fifty ignition cycles have passed with no DTCs detected.

DIAGNOSTIC AIDS
^ It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ If an intermittent malfunction exists refer to Testing for Electrical Intermittents in Diagnostic Aids.
^ Possible causes:
- Stoplamp switch input circuit open.
- All brake lamps open.
- Stoplamp switch open or misadjusted.
- Open brake lamp ground.
- Circuit has a wiring problem, terminal corrosion, or poor connections.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
3. Checks for voltage at Electronic Brake and Traction Control Module (EBTCM).
9. Checks the Stoplamp switch.

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Part 2 Of 2:

DTC C1295 BRAKE LAMP SWITCH CIRCUIT OPEN