DTC 92 Open Brake Switch Contacts When Abs Required: Notes

This test determines the proper operation of brake switch. This is important because ABS is activated when brake switch is on. If brake switch is off, ABS will never be activated. Since this malfunction is difficult to detect under normal braking conditions, this malfunction is only detected when ABS is required.

DTC 92 can set if vehicle's speed is greater than 5 MPH and brake switch was not on and a release was required on 2 channels for 0.5 second. DTC will be stored, ABS will be disabled and ABS or ABS INOP warning light will turn on.

1. Determines if brake switch signal is being received by EBCM.
2. Indicates if an open circuit exists in brake switch or brakelight circuit.
3. Isolates open circuit to either brake switch input circuit or EBCM.
4. Ensures malfunction was not due to poor terminal contact.
5. Verifies voltage is available at brake switch.
6. Verifies brake switch is functioning properly.