Chrysler PT Cruiser. Manual — part 499
TAIL LAMP
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TAIL LAMP UNIT
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LAMPS/LIGHTING - EXTERIOR
SPECIFICATIONS
EXTERIOR LAMPS
CAUTION: Do not use bulbs that have a higher can-
dle power than the bulb listed in the chart below.
Damage to lamp can result. Do not touch halogen
bulbs with fingers or other oily surfaces. Bulb life
will be reduced.
BULB APPLICATION TABLE
LAMP
BULB
BACK-UP LAMP
3157-P27/7W
CHMSL
W16W
FRONT FOG LAMP
9006
FRONT PARK/TURN
SIGNAL LAMP/SIDE
MARKER
4157NAKX
HEADLAMP LOW BEAM
9006XS
HEADLAMP HIGH BEAM
9005XS
LICENSE PLATE LAMP
168
TAIL LAMP
3157-P27/7W
BULB APPLICATION TABLE - EXPORT
LAMP
BULB
FRONT POSITION LAMP
W5W
SIDE REPEATER LAMP
W5W
BACK-UP LAMP
REMOVAL
(1) Remove screws attaching the back-up lamp
assembly to the fascia (Fig. 1).
(2) Remove lamp assembly.
(3) Remove socket from housing.
(4) Pull bulb from socket
INSTALLATION
(1) Push bulb into socket (Fig. 1).
(2) Install socket into the housing. Rotate the
socket clockwise until fully seated.
(3) Test lamp operation
(4) Install screws attaching back-up lamp unit to
fascia.
BACK-UP LAMP UNIT
REMOVAL
(1) Remove screws attaching the back-up lamp
assembly to the fascia (Fig. 1).
Fig. 1 BACK-UP LAMP
1 - REAR FASCIA
4 - BULB
2 - BACK-UP LAMP ASSEMBLY
5 - CONNECTOR
3 - LICENSE PLATE LAMP
8L - 2
LAMPS/LIGHTING - EXTERIOR
PT
(2) Remove back up lamp assembly.
(3) Remove the bulb socket from the lamp housing
by rotating the socket counter-clockwise until the
socket is free of the housing.
INSTALLATION
(1) Install the bulb socket into the lamp housing
by rotating the socket clockwise until fully seated.
(2) Place back-up lamp assembly into position.
(3) Test lamp operation
(4) Install screws attaching back-up lamp unit to
fascia.
BRAKE LAMP SWITCH
DESCRIPTION
The brake lamp switch is located under the instru-
ment panel, at the brake pedal arm (Fig. 2). It has
three internal switches controlling various functions
of the vehicle. It’s main function is to control opera-
tion of the vehicle’s brake lamps. Other functions
include speed control deactivation, brake sense for
the antilock brake system and brake sense for the
brake transmission shift interlock.
CAUTION: The switch can only be adjusted once.
That is during initial installation of the switch. If the
switch
is
not
adjusted
properly
or
has
been
removed for some service, a new switch must be
installed and adjusted.
OPERATION
When the brake pedal is pressed, the plunger on
the outside of the brake lamp switch extends out-
ward. This action opens or closes the contacts of the
three switches inside the brake lamp switch.
With the brake pedal pressed down (plunger
extended), the switch for terminals 1 and 2 is closed
completing the circuit. The switch for terminals 3
and 4 is open and so is the switch for 5 and 6.
When the brake pedal is released (plunger pushed
in), the three switches assume the opposite positions.
The switch for terminals 1 and 2 is now open while
the other two switches are now closed, completing
their circuits.
DIAGNOSIS AND TESTING - BRAKE LAMP
SWITCH
NOTE: Before proceeding with this diagnostic test,
verify the adjustment lever on the back of the
switch is in the adjusted position. If the lever is in
the non-adjusted (diagonal) position it may have
never been adjusted. For adjustment, (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/BRAKE
LAMP SWITCH - INSTALLATION).
If the electrical circuit has been tested and the
brake lamp switch is suspected of being faulty, it can
be tested using the following method.
(1) Remove the switch from the vehicle (Refer to 8
- ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
BRAKE LAMP SWITCH - REMOVAL).
(2) With
the
switch
in
the
released
position
(plunger extended), use an ohmmeter to test each of
the three internal switches as shown (Fig. 3). You
should achieve the results as listed in the figure.
Fig. 2 BRAKE LAMP SWITCH
1 - BRAKE LAMP SWITCH
2 - STEERING COLUMN COUPLER
3 - BRAKE PEDAL
Fig. 3 SWITCH TEST - RELEASED POSITION
PT
LAMPS/LIGHTING - EXTERIOR
8L - 3
BACK-UP LAMP UNIT (Continued)
(3) Gently push the plunger on the brake lamp
switch in until it stops.
(4) With the switch in this depressed position
(plunger pushed in), use an ohmmeter to test each of
the three internal switches as shown (Fig. 4). You
should achieve the results as listed in the figure.
If you do not achieve the results as listed in both
figures, the switch is faulty and must be replaced.
Refer to Removal And Installation in this section.
If the switch is found to be operating properly, it
may be misadjusted. Do not reinstall the switch,
replace it (Refer to 8 - ELECTRICAL/LAMPS/LIGHT-
ING
-
EXTERIOR/BRAKE
LAMP
SWITCH
-
INSTALLATION).
CAUTION: The switch can only be adjusted once.
That is during initial installation of the switch. If the
switch
is
not
adjusted
properly
or
has
been
removed for any reason, a new switch must be
installed and adjusted.
REMOVAL
(1) Unclip the air cleaner cover (two clips) and
move the cover aside.
(2) Disconnect and isolate the battery negative
cable from its post on the battery.
(3) Remove the silencer pad below the knee
blocker.
(4) Fold down and remove the knee blocker below
the steering column.
(5) Remove the brake lamp switch from its bracket
by rotating the switch in a counterclockwise direction
approximately 30 degrees, then pulling the switch
rearward.
(6) Disconnect the wiring harness connector.
(7) Discard the brake lamp switch. It must not be
reused.
INSTALLATION
CAUTION: Do not reuse the original brake lamp
switch. The switch can only be adjusted once. That
is during initial installation of the switch. If the
switch
is
not
adjusted
properly
or
has
been
removed for some service, a new switch must be
installed and adjusted.
(1) Obtain NEW brake lamp switch. The adjust-
ment lever on the new switch should be at a 45°
angle from the wiring connector. If the adjustment
lever is parallel with the wiring connector, the
switch has been pre-set and must be scrapped.
DO NOT ATTEMPT TO RESET (OR RE-AD-
JUST) THE BRAKE LAMP SWITCH.
(2) Connect the wiring harness to the connector on
the switch.
(3) Mount and adjust the NEW brake lamp switch
using the following steps:
(a) Install the switch in its bracket by aligning
the index tab on the switch with the notch in the
mounting bracket.
(b) When the switch body is fully seated in its
bracket, rotate the switch clockwise approximately
30° to lock the switch into place.
(c) With the brake pedal in the fully released
position, move the adjustment lever on the brake
lamp switch from the 45° angled non-adjusted posi-
tion, clockwise as shown, until it is parallel with
the wiring connector (Fig. 5). The brake lamp
switch is now properly adjusted to the vehicle.
(4) Install the knee blocker.
(5) Install the silencer pad below the knee blocker.
(6) Reconnect the battery negative terminal.
(7) Reinstall the air cleaner cover (two clips).
(8) Check the stop lamps to verify they are operat-
ing properly and not staying on when the pedal is in
the released position.
Fig. 4 SWITCH TEST - DEPRESSED POSITION
Fig. 5 Adjustment Lever Movement
8L - 4
LAMPS/LIGHTING - EXTERIOR
PT
BRAKE LAMP SWITCH (Continued)
(9) Road test the vehicle to ensure proper opera-
tion of the brakes (including ABS) and speed control
(if equipped).
CENTER HIGH MOUNTED
STOP LAMP
REMOVAL
(1) Open liftgate.
(2) Remove liftgate CHMSL cover (Fig. 6).
(3) Unsnap and remove the CHMSL lens from the
lamp housing.
(4) Pull bulb(s) from the lamp housing.
INSTALLATION
(1) Install bulb(s) into the lamp housing (Fig. 6).
(2) Snap the CHMSL lens onto the lamp housing.
(3) Test operation of lamps.
(4) Install liftgate CHMSL cover.
(5) Close liftgate.
CENTER HIGH MOUNTED
STOP LAMP UNIT
REMOVAL
(1) Open liftgate.
(2) Remove liftgate CHMSL cover (Fig. 6).
(3) Disconnect the wire harness from the CHMSL.
(4) Remove screws attaching the CHMSL unit
(Fig. 7).
(5) Remove the CHMSL unit from vehicle.
INSTALLATION
(1) Engage the wire harness connector to the
CHMSL.
(2) Instal screws attaching the CHMSL unit (Fig.
7).
(3) Test operation of lamps.
(4) Install liftgate CHMSL cover.
(5) Close liftgate.
CENTER HIGH MOUNTED
STOP LAMP UNIT - PT27
REMOVAL
(1) Open hood.
(2) Disconnect and isolate the battery negative
cable.
(3) Open decklid.
(4) Remove the decklid trim panel (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - REMOVAL).
(5) Disconnect the Center High Mounted Stop
Lamp (CHMSL) Unit electrical connector (Fig. 8).
(6) Remove the two retaining nuts to the CHMSL
Unit (Fig. 9) and (Fig. 10).
(7) Remove CHMSL Unit from decklid.
INSTALLATION
(1) Position Center High Mounted Stop Lamp
(CHMSL) Unit onto decklid.
Fig. 6 CENTER HIGH MOUNTED STOP LAMP AND
COVER
1 - LIFTGATE
2 - SNAP
3 - CHMSL LAMP
4 - CHMSL COVER
Fig. 7 CENTER HIGH MOUNTED STOP LAMP UNIT
1 - CHMSL LAMP
2 - LIFTGATE
PT
LAMPS/LIGHTING - EXTERIOR
8L - 5
BRAKE LAMP SWITCH (Continued)
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