DTC 95

DTC 95 Brake Switch Circuit Open:

DTC's 92, 93, 94, & 95 Brake Switch Wiring Schematic:

Circuit Description:
This DTC is used to identify open brake switch circuitry that prevents the brake switch input to the EBCM/EBTCM from changing states when the brake is applied.

This DTC is used in conjunction with DTCs 91 and 92 to determine the cause of an open brake switch malfunction.

DTC Will Set When:
DTC 95 can be set after initialization is completed. If the brake switch input voltage is out of specification for one second indicating an open circuit, a malfunction exists.

Action Taken:
A malfunction DTC is stored, ABS is disabled and the ABS indicator lamp is turned "ON."

DTC Chart Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Confirms that an open in the brake switch circuitry currently exists.
2. Indicates if the brake switch signal is being received by the EBCM/EBTCM.
3. Isolates the open circuit to either the brake switch input circuitry, or the EBCM/EBTCM.
4. Ensures malfunction was not due to poor terminal contact.

Diagnostic Aids:
An "intermittent" malfunction is most likely caused by a poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation.

The frequency of the malfunction can be checked by using the enhanced diagnostic function of the Tech 1.

Any circuitry that is suspected as causing the intermittent complaint should be thoroughly checked for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wiring connections or physical damage to the wiring harness.