from the interior-to-front bumper beam area to be
used for the auxiliary flashers, siren, speaker, or con-
trol circuit usage. The twisted pairs are taped back
to the wire harness right by the wire feed to the
ambient temperature sensor behind the front fascia,
in front of the condenser, just to the passenger side of
the vehicle centerline. All police vehicle wiring (addi-
tional circuits added) is taped back to the wire har-
ness with green tape for identification. Refer to
Wiring Diagrams for location and circuit description.

The police package includes a Wig Wag (alternat-

ing flashing of the vehicle high beam headlamps)
connector underneath the instrument panel. This
connector is hard wired to the front high beam head-
lamps and is intended for use with an aftermarket
lighting control module. Refer to Wiring Diagrams for
location and circuit description.

DESCRIPTION - TURN SIGNAL & HAZARD
WARNING SYSTEM

The turn signal and hazard warning system

includes the following major components:

• Combination Flasher

• Hazard Warning Switch

• Turn Signal Cancel Cam

• Turn Signal Indicators

• Turn Signal Lamps

• Turn Signal Switch

SUPPLEMENTAL INDICATORS - 300M SPECIAL

The 300M Special has an added feature to the turn

signal system. Mounted on the outside of the left and
right power outside mirrors are supplemental indica-
tors. These are intended for additional indication to
alert other drivers to see when the vehicle is turning
or changing lanes.

These supplemental indicators are an integral part

of the outside power mirror assembly and cannot be
serviced separately. If found to be faulty or defective,
the entire power outside mirror must be replaced.
These indicators are LED’s and contain resistors
internally to maintain proper operating voltage. The
secondary indicators are spliced directly into the turn
signal circuit.

OPERATION - TURN SIGNAL & HAZARD
WARNING SYSTEM

The turn signal system operates on battery voltage

received on a fused ignition switch output (RUN-
ACC) circuit so that the turn signals will only oper-
ate

with

the

ignition

switch

the

ACCESSORY positions. The hazard warning system
operates on non-switched battery voltage received on
a fused B(+) circuit so that the hazard warning
remains operational regardless of the ignition switch
position. When the turn signal system is activated,
the turn signal switch and the combination flasher
will cause the selected turn signal indicator, front
park/turn signal lamp, and rear tail/stop/turn signal
lamp to flash ON and OFF. When the hazard warn-
ing system is activated, the hazard warning switch
and the combination flasher will cause both the right
side and the left side turn signal indicators, front
park/turn signal lamps, and rear tail/stop/turn signal
lamps to flash ON and OFF.

SUPPLEMENTAL INDICATORS - 300M SPECIAL

When the multi-function switch requests a left or

right turn, the voltage is sent to the front and rear
turn signals as well as the corresponding supplemen-
tal indicator. For diagnosis of the supplemental indi-
cators,

(Refer

ELECTRICAL/POWER

MIRRORS - DIAGNOSIS AND TESTING).

DIAGNOSIS AND TESTING - TURN SIGNAL &
HAZARD WARNING SYSTEM

When diagnosing the turn signal and hazard warn-

ing circuits, remember that high generator output
can burn out bulbs rapidly and repeatedly. If this is a
problem on the vehicle being diagnosed, be certain to
diagnose and repair the charging system as required.
If the problem being diagnosed is related to a failure
of the turn signals to automatically cancel following
completion of a turn, inspect the multi-function
switch for a faulty or damaged cancel actuator and
inspect the turn signal cancel cam on the clock
spring for damaged lobes or improper installation.

(1) Turn the ignition switch to the ON position.

Actuate the turn signal switch or the hazard warning
switch. Observe the turn signal indicator(s) in the
instrument cluster. If the flash rate is very high,
check for a turn signal bulb that is not lit or is very
dimly lit. Repair the circuits to that lamp or replace
the faulty bulb, as required. If the turn signal indi-
cator(s) fail to light, go to Step 2.

(2) Turn the ignition switch to the OFF position.

Check the fused ignition switch output (RUN-ACC)
fuse in the Junction Block (JB) and the fused B(+)
fuse in the Power Distribution Center (PDC). If OK,
go to Step 3. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse(s).

LAMPS/LIGHTING - EXTERIOR

8L - 3

(3) Check for battery voltage at the fused B(+) fuse

in the PDC. If OK, go to Step 4. If not OK, repair the
open B(+) circuit between the PDC and the battery
as required.

(4) Turn the ignition switch to the ON position.

Check for battery voltage at the fused ignition switch
output (RUN-ACC) fuse in the JB. If OK, go to Step
5. If not OK, repair the open fused ignition switch
output (RUN-ACC) circuit between the JB and the
ignition switch as required.

(5) Turn the ignition switch to the OFF position.

Disconnect and isolate the battery negative cable.
Remove the combination flasher from the rear of the
multi-function switch and replace it with a known
good unit. Reconnect the battery negative cable. Test
the operation of the turn signal and hazard warning
systems. If OK, discard the faulty combination
flasher. If not OK, remove the test flasher and go to
Step 6.

(6) Turn the ignition switch to the ON position.

Check for battery voltage at the fused ignition switch
output (RUN-ACC) circuit in the rear of the multi-
function switch for the combination flasher. If OK, go
to Step 7. If not OK, repair the open fused ignition
switch output (RUN-ACC) circuit between the combi-
nation flasher and the fused ignition switch output
(RUN-ACC) fuse in the JB as required.

(7) Turn the ignition switch to the OFF position.

Check for battery voltage at the fused B(+) circuit
cavity of the instrument panel wire harness connec-
tor for the combination flasher. If OK, go to Step 8. If
not OK, repair the open fused B(+) circuit between
the combination flasher and the fused B(+) fuse in
the PDC as required.

(8) Disconnect the instrument panel wire harness

connector for the multi-function switch. Check for
continuity between the hazard flasher signal circuit
in the instrument panel wire harness connector and
the instrument panel wire harness connector for the
multi-function switch. There should be continuity. If
OK, go to Step 9. If not OK, repair the open hazard
flasher

signal

circuit

between

the

combination

flasher and the multi-function switch as required.

(9) Check for continuity between the right turn

switch sense circuit in the instrument panel wire
harness connector and the instrument panel wire
harness connector for the multi-function switch.
Repeat this check between the left turn switch sense
circuit cavities. If OK, go to Step 10. If not OK,
repair the open right and/or left turn switch sense
circuit(s) between the combination flasher and the
multi-function switch as required.

(10) Check for continuity between the right and/or

left turn signal circuit in the instrument panel wire
harness connector for the combination flasher and
the individual turn signal lamps. There should be

continuity. If OK, test the multi-function switch
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/MULTI-FUNCTION SWITCH - DIAG-
NOSIS AND TESTING). If not OK, repair the open
right and/or left turn signal circuit(s) between the
combination flasher and the turn signal lamp(s) as
required.

SPECIFICATIONS

EXTERIOR LAMPS

CAUTION: Do not use bulbs other than those listed
in the Bulb Application Table. 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

MODEL

BULB

Back up

Concorde/
Limited

921

Intrepid/300M

3157K

CHMSL

Concorde/
Limited/300M

921

Intrepid

912

300M

921

Front Parking/Turn
Signal

Limited

3157 AK or

Front Parking/Turn
Signal/Side Marker

Concorde/
300M

3157 K

Intrepid

3157 KNA or

Front Side Marker

Limited

168

Fog lamps

Intrepid

H-3 (35 watt)

300M

H-3 (55 watt)

Limited

9040 (40

Watt)

Headlamps

High Beam
(All)

9005 XSLL

Low Beam (All)

9006 XS

License Plate

All

168

Spot Lamp

Intrepid -
Police

H3 (100 watt)

Tail

300M

3157K

Tail Side Marker

Intrepid

168

8L - 4

LAMPS/LIGHTING - EXTERIOR

LAMPS/LIGHTING - EXTERIOR (Continued)

Content .. 81 82 83 84 ..