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Brake Switch

NOTE: Brake switch may also be referred to as brakelight switch.
  1. Brake switch is located near top of brake pedal. Disconnect brake switch connector. It may be necessary to remove brake switch for access to electrical connector. If necessary to remove brake switch, see BRAKE SWITCH under ENGINE SENSORS & SWITCHES in appropriate REMOVAL, OVERHAUL & INSTALLATION - CARAVAN, TOWN & COUNTRY, & VOYAGER article.
  2. With brake switch in released position (plunger extended), check continuity between brake switch terminals. See Fig 1. Continuity should exist between terminals No. 1 and 2. Continuity should not exist between terminals No. 3 and 4, or terminals No. 5 and 6. If continuity is not as specified, replace brake switch.
  3. With brake switch in depressed position (plunger pushed in), check continuity between brake switch terminals. Continuity should exist between terminals No. 3 and 4, and terminals No. 5 and 6. Continuity should not exist between terminals No. 1 and 2. If continuity is not as specified, replace brake switch.
Fig 1: Identifying Brake Switch Terminals
G00010977Courtesy of DAIMLERCHRYSLER CORPORATION