Durango 2WD V6-3.7L (2009)
Brake Light Switch: Testing and Inspection
BRAKE LAMP SWITCH
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor or instrument panel component
diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the system capacitor to
discharge before performing further diagnosis or service. On vehicles equipped with the optional Hybrid Electric Vehicle (HEV)
system, a technician trained in proper HEV service safety procedures must also remove the high voltage service disconnect from
the high voltage battery pack. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in
accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect and isolate the battery negative cable. On vehicles equipped with the optional Hybrid Electric Vehicle (HEV) system, a technician
trained in proper HEV service safety procedures must also remove the high voltage service disconnect from the high voltage battery pack.
CAUTION: Do not remove the brake lamp switch from the mounting bracket. The self-adjusting switch plunger is a one time only feature. If
the switch is removed from the mounting bracket, it MUST be replaced with a new switch.
2. Disconnect the wire harness connector from the brake lamp switch.
3. Using an ohmmeter, perform the continuity tests at the terminal pins (1) in the brake lamp switch connector receptacle as shown in the Brake Lamp
Switch Tests table.
4. If the switch fails any of the continuity tests, replace the ineffective brake lamp switch as required.
