Jeep KJ 2005 Service Manual page 458

KJ
BRAKE LAMP SWITCH (Continued)
BRAKE LAMP SWITCH TESTS
PLUNGER POSITION
Released (Extended)
Compressed (Depressed)
(4) If the switch fails any of the continuity tests,
replace the faulty brake lamp switch as required.
REMOVAL
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, occupant
classification system, seat belt tensioner, impact
sensor, or instrument panel component diagnosis
or service. Disconnect and isolate the battery neg-
ative (ground) cable, then wait two minutes for the
system capacitor to discharge before performing
further diagnosis or service. This is the only sure
way to disable the supplemental restraint system.
Failure to take the proper precautions could result
in accidental airbag deployment.
(1) Disconnect and isolate the battery negative
cable.
(2) Locate the brake lamp switch near the support
bracket on the lower steering column (Fig. 5).
Fig. 5 Brake Lamp Switch Remove/Install
1 - STEERING COLUMN SUPPORT
2 - WIRE HARNESS CONNECTOR
3 - LEVER
4 - BRAKE LAMP SWITCH
5 - BRAKE PEDAL ARM
(3) Disconnect the wire harness connector from the
brake lamp switch.
(4) Rotate the brake lamp switch housing counter-
clockwise about 30 degrees to align the tabs on the
CONTINUITY BETWEEN
Pins 1 & 2
Pins 3 & 4, 5 & 6
LAMPS/LIGHTING - EXTERIOR
switch locking collar with the keyed mounting hole in
the switch mounting bracket.
(5) Pull the switch straight back from the keyed
hole to remove it from the bracket.
CAUTION: The brake lamp switch 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.
(6) Discard the removed brake lamp switch.
INSTALLATION
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, occupant
classification system, seat belt tensioner, impact
sensor, or instrument panel component diagnosis
or service. Disconnect and isolate the battery neg-
ative (ground) cable, then wait two minutes for the
system capacitor to discharge before performing
further diagnosis or service. This is the only sure
way to disable the supplemental restraint system.
Failure to take the proper precautions could result
in accidental airbag deployment.
CAUTION: The brake lamp switch 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.
(1) Depress and hold the brake pedal in the
depressed position.
(2) Align the tabs on the brake lamp switch lock-
ing collar with the keyed hole in the switch mounting
bracket (Fig. 5).
(3) Insert the tabs on the brake lamp switch lock-
ing collar through the keyed hole in the switch
mounting bracket until the switch housing is firmly
seated against the bracket.
(4) Rotate the switch clockwise about 30 degrees to
engage the tabs on the locking collar with the switch
mounting bracket.
(5) Release the brake pedal.
CAUTION: Do not release or pull up on the brake
pedal before the switch plunger adjustment has
been completed.
(6) Release the brake pedal, but do not pull it
upward.
(7) Rotate the plunger adjustment release lever
clockwise until it locks into place. The lever should
be parallel to the brake lamp switch connector recep-
tacle. This action will set the switch plunger length
8L - 21