
(4) Allow the battery to stabilize to open-circuit
voltage. It may take up to five minutes for the bat-
tery voltage to stabilize.
(5) Rotate the load control knob to maintain a load
equal to 50% of the CCA rating of the battery (Fig.
14). After fifteen seconds, record the loaded voltage
reading, then return the load control knob to the Off
position.
(6) The voltage drop will vary with the battery
temperature at the time of the load test. The battery
temperature can be estimated by using the ambient
temperature during the past several hours. If the
battery has been charged, boosted, or loaded a few
minutes prior to the test, the battery will be some-
what warmer. See the Load Test Temperature Table
for the proper loaded voltage reading.
LOAD TEST TEMPERATURE TABLE
Minimum VoltageTemperature
ÉF ÉC
9.6 volts 70É and above 21É and above
9.5 volts 60É 16É
9.4 volts 50É 10É
9.3 volts 40É 4É
9.1 volts 30É -1É
8.9 volts 20É -7É
8.7 volts 10É -12É
8.5 volts 0É -18É
(7) If the voltmeter reading falls below 9.6 volts, at
a minimum battery temperature of 21É C (70É F), the
battery is faulty and must be replaced.
STANDARD PROCEDURE - IGNITION-OFF
DRAW TEST
The term Ignition-Off Draw (IOD) identifies a nor-
mal condition where power is being drained from the
battery with the ignition switch in the Off position. A
normal vehicle electrical system will draw from five
to thirty-five milliamperes (0.005 to 0.035 ampere)
with the ignition switch in the Off position, and all
non-ignition controlled circuits in proper working
order. Up to thirty-five milliamperes are needed to
enable the memory functions for the Powertrain Con-
trol Module (PCM), digital clock, electronically tuned
radio, and other modules which may vary with the
vehicle equipment.
A vehicle that has not been operated for approxi-
mately twenty days, may discharge the battery to an
inadequate level. When a vehicle will not be used for
twenty days or more (stored), remove the IOD fuse
from the Power Distribution Center (PDC). This will
reduce battery discharging.
Excessive IOD can be caused by:
²Electrical items left on.
²Faulty or improperly adjusted switches.
²Faulty or shorted electronic modules and compo-
nents.
²An internally shorted generator.
²Intermittent shorts in the wiring.
If the IOD is over thirty-five milliamperes, the
problem must be found and corrected before replac-
ing a battery. In most cases, the battery can be
charged and returned to service after the excessive
IOD condition has been corrected.
(1) Verify that all electrical accessories are off.
Turn off all lamps, remove the ignition key, and close
all doors. If the vehicle is equipped with an illumi-
nated entry system or an electronically tuned radio,
allow the electronic timer function of these systems
to automatically shut off (time out). This may take
up to three minutes. See the Electronic Module Igni-
tion-Off Draw Table for more information.
Fig. 14 Load 50% CCA Rating - Note Voltage -
Typical
8F - 14 BATTERY SYSTEMRS
BATTERY (Continued)
ProCarManuals.com 

HORN
TABLE OF CONTENTS
page page
HORN
DESCRIPTION............................1
OPERATION.............................1
DIAGNOSIS AND TESTING..................1
HORN
DIAGNOSIS AND TESTING..................3
REMOVAL...............................4INSTALLATION............................5
HORN RELAY
DIAGNOSIS AND TESTING..................5
REMOVAL...............................5
INSTALLATION............................5
HORN SWITCH
DESCRIPTION............................5
HORN
DESCRIPTION
HORN SYSTEM
WARNING:
ON VEHICLES EQUIPPED WITH AIRBAG, REFER TO
ELECTRICAL, RESTRAINTS FOR SAFETY PRECAU-
TIONS. DISCONNECT THE NEGATIVE CABLE FROM
THE BATTERY BEFORE SERVICING COMPONENTS
INVOLVING THE AIRBAG SYSTEM. ACCIDENTAL
DEPLOYMENT OF AIRBAG AND PERSONAL INJURY
CAN RESULT.
The horn circuit consists of a horn switch, clock-
spring, horn relay, horns and intelligent power mod-
ule. The horn switch is a membrane switch located in
the airbag trim cover. The horns are located forward
of the left front wheel behind the bumper fascia.
OPERATION
The horn relay plugs into the intelligent power
module which is located in the engine compartment.
For circuit information and component locations,
refer to the appropriate wiring information. The wir-
ing information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
The horns will not function if the switch is
ªCLOSEDº for more than 30 seconds. Once the
switch is ªOPENº, a 20±30 second delay will occur
before the horns are functional again.
DIAGNOSIS AND TESTING
Refer to Horn System Test below. If the horn does
not sound, check horn fuse located in the intelligent
power module. If the fuse is blown, replace with the
correct fuse. If the horns fail to sound and the new
fuse blows when depressing the horn switch, a short
circuit in the horn or the horn wiring between the
fuse terminal and the horn is responsible, or a defec-
tive horn switch allowed the horn to burn out is
responsible.
If the fuse is OK, test horn relay (Refer to 8 -
ELECTRICAL/HORN/HORN RELAY - DIAGNOSIS
AND TESTING).
If the relay is OK, test horn. Refer to Horn System
Test.
CAUTION:
Continuous sounding of horn may cause horn relay
to fail.
Should the horn sound continuously:
²Unplug the horn relay from intelligent power
module.
²Refer to (Refer to 8 - ELECTRICAL/HORN/
HORN RELAY - DIAGNOSIS AND TESTING).
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
RSHORN8H-1
ProCarManuals.com 

HORN SYSTEM TEST
CONDITION POSSIBLE CAUSE CORRECTION
HORN SOUNDS CONTINUOUSLY.
NOTE: IMMEDIATELY UNPLUG
HORN RELAY IN THE
INTELLIGENT POWER MODULE.(1) FAULTY HORN RELAY. (1) REFER TO HORN RELAY
TEST.
(2) HORN CONTROL CIRCUIT TO
RELAY SHORTED TO GROUND.(2) CHECK TERMINAL 85 IN
INTELLIGENT POWER MODULE
FOR CONTINUITY TO GROUND.
IF CONTINUITY TO GROUND
INDICATES:
(A) STEERING WHEEL HORN
SWITCH/LEAD SHORTED TO
GROUND.
(B) WIRING HARNESS SHORTED
TO GROUND. FIND THE SHORT
AND REPAIR AS NECESSARY.
(3) PINCHED HORN SWITCH
WIRE UNDER DRIVER AIRBAG
MODULE.(3) REPLACE DRIVER AIRBAG
MODULE TRIM.
(4) FAULTY HORN SWITCH. (4) REPLACE DRIVER AIRBAG
MODULE TRIM.
(5) FAULTY CLOCKSPRING. (5) REPLACE CLOCKSPRING.
HORN SOUND INTERMITTENTLY
AS THE STEERING WHEEL IS
TURNED.(1) HORN RELAY CONTROL
CIRCUIT X3 IS SHORTED TO
GROUND INSIDE STEERING
COLUMN OR WHEEL.(1) REMOVE DRIVER AIRBAG
MODULE AND/OR WHEEL.
CHECK FOR RUBBING OR
LOOSE WIRE/CONNECTOR,
REPAIR AS NECESSARY.
(2) PINCHED HORN SWITCH
WIRE UNDER DRIVER AIRBAG
MODULE.(2) REPLACE DRIVER AIRBAG
MODULE TRIM.
(3) FAULTY HORN SWITCH. (3) REPLACE DRIVER AIRBAG
MODULE TRIM.
(4) FAULTY CLOCKSPRING. (4) REPLACE CLOCKSPRING.
HORN DOES NOT SOUND (1) CHECK FUSE 8 IN
INTELLIGENT POWER MODULE.(1) REPLACE FUSE IF BLOWN
REPAIR AS NECESSARY.
(2) NO VOLTAGE AT HORN
RELAY TERMINALS 30 & 86, AND
FUSE IS OK.(2) NO VOLTAGE, REPAIR THE
CIRCUIT AS NECESSARY.
(3) OPEN CIRCUIT FROM
TERMINAL 85 OF THE HORN
RELAY TO HORN SWITCH, X3
CIRCUIT.(3) REPAIR CIRCUIT AS
NECESSARY.
(4) FAULTY OR DAMAGED HORN. (4) VOLTAGE AT HORN WHEN
HORN SWITCH IS PRESSED,
REPLACE HORN.
(5) FAULTY HORN SWITCH. (5) REPLACE DRIVER AIRBAG
MODULE TRIM.
(6) FAULTY CLOCKSPRING. (6) REPLACE CLOCKSPRING.
8H - 2 HORNRS
HORN (Continued)
ProCarManuals.com 

CONDITION POSSIBLE CAUSE CORRECTION
FUSE BLOWS WHEN HORN
SOUNDS(1) SHORT CIRCUIT IN HORN OR
HORN WIRING.(1) REMOVE HORN RELAY,
CHECK FOR SHORTED HORN OR
HORN WIRING. DISCONNECT
HORN WIRE HARNESS TO
ISOLATE SHORT AND REPAIR AS
NECESSARY.
(2) FAULTY CLOCKSPRING. (2) REPLACE CLOCKSPRING.
FUSE BLOWS WITHOUT
BLOWING HORN(1) SHORT CIRCUIT. (1) REMOVE RELAY, INSTALL
NEW FUSE, IF FUSE DOES NOT
BLOW REPLACE HORN RELAY. IF
FUSE BLOWS WITH RELAY
REMOVED, CHECK FOR SHORT
TO GROUND WITH OHMMETER
ON CIRCUIT BETWEEN
TERMINALS 30 & 86 AND THE
FUSE TERMINAL. REPAIR AS
NECESSARY.
(2) FAULTY CLOCKSPRING. (2) REPLACE CLOCKSPRING.
HORN
DIAGNOSIS AND TESTING
HORN
(1) Disconnect wire connector at horn.
(2) Using a voltmeter, connect one lead to ground
terminal and the other lead to the positive wire ter-
minal (Fig. 1).
(3) Depress the horn switch, battery voltage
should be present.
(4) If no voltage, refer toHORNS WILL NOT
SOUND. If voltage is OK, go to step Step 5.
(5) Using ohmmeter, test ground wire for continu-
ity to ground.
(6) If no ground repair as necessary.
(7) If wires test OK and horn does not sound,
replace horn.
HORNS SOUND CONTINUOUSLY
CAUTION:
Continuous sounding of horns may cause relay to
fail.
The horn switch (membrane) sometimes can be the
cause without the switch being depressed.
(1) Remove the horn relay from the intelligent
power module.
(2) Using a continuity tester, test continuity from
the X3 cavity of the horn relay to ground. Refer to
the appropriate wiring information. The wiring infor-
mation includes wiring diagrams, proper wire and
connector repair procedures, details of wire harnessrouting and retention, connector pin-out information
and location views for the various wire harness con-
nectors, splices and grounds.
(a) If continuity is detected, proceed to step Step
3.
(b) If NO continuity, replace the horn relay.
(3) Remove the airbag trim cover from the steering
wheel and disengage horn connector.
(4) Install horn relay into intelligent power mod-
ule.
(a) If horn does not sound, replace airbag trim
cover.
(b) If horn sounds, repair grounded X3 circuit
from intelligent power module to clockspring in the
steering column. Refer to the appropriate wiring
information. The wiring information includes wir-
ing diagrams, proper wire and connector repair
procedures, details of wire harness routing and
retention, connector pin-out information and loca-
tion views for the various wire harness connectors,
splices and grounds.HORNS WILL NOT SOUND
Check horn fuse#8intheintelligent power mod-
ule. If fuse is blown, check for a shorted switch in the
airbag module. and refer to FUSE BLOWN section. If
fuse is OK, refer to FUSE OK section.
FUSE BLOWN
(1) Verify condition of battery terminals and volt-
age, (Refer to 8 - ELECTRICAL/BATTERY SYSTEM
- DIAGNOSIS AND TESTING). If battery connec-
tions and battery charge is OK proceed to Step 2.
RSHORN8H-3
HORN (Continued)
ProCarManuals.com 

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.
REMOVAL - BRAKE LAMP SWITCH
(1) Disconnect and isolate the battery negative
cable from its post on the battery.
(2) Remove silencer panel below steering column
and knee blocker.
(3) Remove the brake lamp switch by rotating the
switch in a counterclockwise direction approximately
30 degrees and pulling it out of the bracket (Fig. 3).
(4) Discard the brake lamp switch. It must not be
reused.
INSTALLATION - BRAKE LAMP SWITCH
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) Mount and adjust the NEW brake lamp switch
using the following procedure:
(a) Install the switch in its bracket by aligning
the index tab on the switch with the slot in the
mounting bracket.
(b) When the switch is fully seated in its
bracket, rotate the switch clockwise approximately
30É to lock the switch into place (Fig. 3).
(c) With the brake pedal in the fully released
position, move the lever on the back of the brake
lamp switch from the angled non-adjusted positionto the full vertical position as shown (Fig. 4). This
will adjust the brake lamp switch to the vehicle.
(2) Install silencer panel below steering column
knee blocker.
(3) Reconnect the battery negative terminal.
(4) Check the stop lamps to verify they are operat-
ing properly and not staying on when the pedal is in
the released position.
(5) Road test the vehicle to ensure proper opera-
tion of the brakes (including ABS if equipped) and
speed control (if equipped).
Fig. 2 Switch Test - Depressed Position
Fig. 3 PEDAL AND BRAKE LAMP SWITCH
1 - SWITCH BRACKET
2 - BRAKE LAMP SWITCH
3 - WIRING CONNECTOR
4 - PEDAL AND BRACKET
Fig. 4 Adjustment Lever Movement
8L - 8 LAMPS/LIGHTING - EXTERIORRS
BRAKE LAMP SWITCH (Continued)
ProCarManuals.com 

CENTER HIGH MOUNTED
STOP LAMP
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove two retaining screws (Fig. 5).
(3) Twist socket counter-clockwise and remove
from lamp.
(4) Pull bulb from socket (Fig. 6).
INSTALLATION
(1) Push bulb into socket.
(2) Install socket into the lamp unit.
(3) Install the retaining screws.
(4) Reconnect the battery negative cable.
CENTER HIGH MOUNTED
STOP LAMP UNIT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the two retaining screws (Fig. 5).
(3) Disconnect the rear window washer hose.
(4) Remove bulb socket from lamp unit (Fig. 6).
INSTALLATION
(1) Install bulb socket to lamp unit.
(2) Reconnect the rear window washer hose.
(3) Install the retaining screws.
(4) Reconnect the battery negative cable.
FOG LAMP
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) From behind the bumper fascia, twist bulb
counter-clockwise, and remove bulb. (Fig. 7).
(3) Remove the wire connector from the fog lamp
bulb.
INSTALLATION
(1) Reconnect wire harness to bulb.
(2) Install bulb and twist clockwise.
(3) Install battery negative cable.
Fig. 5 CHMSL
1 - CHMSL
2 - LIFT GATE
Fig. 6 CHMSL BULB
1 - CHMSL
2 - CHMSL BULB
Fig. 7 FOG LAMP
1 - FOGLAMP MOUNTING NUT
2 - FOGLAMP BULB
RSLAMPS/LIGHTING - EXTERIOR8L-9
ProCarManuals.com 

HEADLAMP
REMOVAL
(1)Disconnect and isolate the battery negative cable.
(2) Remove headlamp unit retaining screws.
(3) Remove headlamp unit to expose back of unit.
(4) Remove wiring connector from bulb.
(5) Rotate headlamp bulb retaining ring counter-
clockwise.
(6) Pull headlamp bulb and remove from headlamp
unit (Fig. 9).
INSTALLATION
(1) Install headlamp bulb to the headlamp unit.
(2) Install headlamp bulb retaining ring.
(3) Connect wiring connector to bulb.
(4) Install the headlamp unit.
(5) Install headlamp unit retaining screws.
(6) Reconnect the battery negative cable.
HEADLAMP SWITCH
DIAGNOSIS AND TESTING
Using a Digital Multi-meter, perform the test (Fig.
10).
If the Headlamp Switch is not within specifications
replace as necessary.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the Instrument Panel Lower Steering
Column Cover. Refer to Body, Instrument Panel,
Lower Steering Column Cover, Removal.(3) Reach up behind the left side of the instrument
panel and depress spring clip on top or bottom of
headlamp switch. Firmly push out on the headlamp
switch assembly.
(4) Disconnect the wiring connectors.
(5) Remove switch from vehicle.
INSTALLATION
(1) Connect the wiring connectors.
(2) Place headlamp switch assembly into position
and firmly snap into place.
(3) Install the Instrument Panel Lower Steering
Column Cover. Refer to Body, Instrument Panel,
Lower Steering Column Cover, Installation.
(4) Connect the battery negative cable.
Fig. 9 HEADLAMP BULB
1 - HEADLAMP BULB
2 - HEADLAMP UNIT
Fig. 10 HEADLAMP SWITCH CONNECTOR
HEADLAMP SWITCH CONTINUITY
HEADLAMP SWITCH
POSITION13-WAY
CONNECTOR
TERMINALRESISTANCE VALUE
OFF 11 TO 6 3651 - 3729
PARKING LAMPS ON 11 TO 6 1697 - 2517
PARKING LAMPS
WITH FRONT FOG
LAMPS ON11 TO 6 5765 - 5886
HEADLAMPS ON 11 TO 6 788 - 809
AUTO ON 11 TO 6 10056 - 10264
HEADLAMPS ON
WITH FRONT FOG
LAMPS11 TO 6 1171 - 1200
AUTO ON WITH
FRONT FOG LAMPS
ON11 TO 6 24278 - 24773
DIMMER POSITION13-WAY
CONNECTOR
TERMINALRESISTANCE VALUE
DOME 12 TO 6 15568 - 23357
PARADE 12 TO 6 5168 - 7757
DIM HIGH 12 TO 6 2288 - 3437
DIM LOW 12 TO 6 688 - 1037
OFF 12 TO 6 240 - 365
RSLAMPS/LIGHTING - EXTERIOR8L-11
ProCarManuals.com 

HEADLAMP ADJUSTMENT
The low beam headlamp will project on the screen
upper edge of the beam (cut-off) at the horizontal
lamp centerline650 mm (2 in.). Horizontal aim is
preset and can not be adjusted. The high beam pat-
tern should be correct when the low beams are
aligned properly (Fig. 14). To adjust headlamp verti-
cal alignment, rotate adjustment screw to achieve the
specified low beam cut-off location.
LICENSE PLATE LAMP
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove two screws (Fig. 15).
(3) Twist bulb socket and remove (Fig. 16).
(4) Pull bulb from socket.
INSTALLATION
(1) Push bulb into socket.
(2) Install socket into lamp.
(3) Install two screws.
(4) Reconnect the battery negative cable.
MULTI-FUNCTION SWITCH
DESCRIPTION - TURN SIGNAL SYSTEM
The turn signals are actuated with a lever on
Multi-Function Switch, located on the left side of the
steering wheel. The signals are automatically turned
off by a canceling cam (two lobes molded to the clock
spring mechanism). The cam comes in contact with
the cancel actuator on the turn signal (multi-func-
tion) switch assembly. Either cam lobe, pushing on
the cancel actuator, returns the switch to the OFF
position. The multi-function switch is a resistive
MUX switch that feeds inputs to the BCM.
Fig. 14 HEADLAMP ADJUSTMENT
1 - ADJUSTMENT LOCATION
2 - HEADLAMP UNIT
Fig. 15 LICENSE PLATE LAMPS
1 - SCREW
2 - LICENSE PLATE LAMP
Fig. 16 LICENSE PLATE LAMP BULB
1 - LICENSE PLATE LAMP
2 - BULB
8L - 14 LAMPS/LIGHTING - EXTERIORRS
HEADLAMP UNIT (Continued)
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