DTC 96

DTC 96 Brake Lamps Circuit Open:

CIRCUIT DESCRIPTION
This DTC is designed to isolate the cause of a DTC A095 failure and indicate to the driver ABS is still available. If DTC A095 fails with DTC A096, the brake lamps are open, the brake lamp grounds are open, or the Center High Mounted Stop Lamp (CHMSL) circuit is open during 4 way flasher use. The presence of battery voltage at the brake switch input indicates a valid brake switch input is still available.

FAILURE CONDITION
DTC A096 can be set only after DTC A095 has been set. If the EBCM detects battery voltage on the brake switch input circuit for one second, a malfunction exists.

ACTION TAKEN
A malfunction DTC is stored. ABS is not disabled, however, the ABS indicator lamp will flash indicating a malfunction exists.

TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. As a result of a failure of an additional brake switch circuit DTC, this DTC may be set. To insure proper diagnosis, any additional brake switch DTCs must be repaired first.
2. This step identifies if the malfunction is currently present in the brake circuit.

DIAGNOSTIC AIDS
An "Intermittent" malfunction may be 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.