Parking Brake Switch

The parking brake switch is a 3 position switch with 2 sets of 3 internal micro switches, one set is for APPLY and one set is for RELEASE. The 3 switch positions are APPLY (pulled up), NEUTRAL (at rest or static) and RELEASE (pushed down).

Whenever the parking brake switch is disconnected and then reconnected, a DTC  sets in the ABS  module and the ABS  module disables the parking brake system. To restore parking brake system functionality and to clear the DTC  , the parking brake switch must be moved through all 3 positions twice within 5 seconds pausing for approximately one-half second when the switch is in the NEUTRAL position between each apply and release.