This DTC is used to identify open Stoplamp Switch circuitry that prevents the Stoplamp Switch input to the 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.
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.
A malfunction DTC is stored, TCS is disabled and the Traction Control indicator is turned ON. ABS remains functional.
• | Condition for DTC is no longer present and scan tool clear DTC function is used. |
• | Fifty ignition cycles have passed with no DTC(s) detected. |
• | 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 General Electrical Diagnosis in Wiring Systems. |
• | 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. |
The numbers below refer to step numbers on the diagnostic table.
Step | Action | Value(s) | Yes | No |
---|---|---|---|---|
1 | Was the Diagnostic System Check performed? | -- | Go to Diagnostic System Check | |
2 | Press the brake pedal. Do the brake lights come on? | -- | ||
Is the voltage within the range specified in the value(s) column? | Battery voltage | |||
4 | Replace the EBTCM. Refer to Electronic Brake and Traction Control Module . Is the replacement complete? | -- | Go to Diagnostic System Check | -- |
5 | Repair open in CKT 20. Refer to Wiring Repairs in Wiring Systems. | -- | Go to Diagnostic System Check | -- |
6 | Check the STOP/HAZ fuse in the Instrument Panel Electrical Center. Is the fuse OK? | -- | ||
7 |
Is the voltage within the range specified in the value(s) column? | Battery voltage | ||
8 | Repair CKT 140 for an open. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Diagnostic System Check | -- |
Connect a fused jumper wire between terminals A and B of the Stoplamp switch harness connector. Do the brake lamps come on? | -- | |||
10 | Adjust or repair the Stoplamp switch as necessary. Refer to Stop Lamp Switch Adjustment in Hydraulic Brakes. Is the repair complete? | -- | Go to Diagnostic System Check | -- |
11 |
Is the fuse OK? | -- | ||
12 | Repair short to ground in CKT 140. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Diagnostic System Check | -- |
13 |
Is the fuse OK? | -- | Go to Diagnostic System Check | |
14 |
Is the fuse OK? | -- | ||
15 | Repair CKT 20 for a short to ground. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Diagnostic System Check | -- |