tow MERCEDES-BENZ SPRINTER 2006 User Guide

INSTALLATION
(1) Install the wheel hub with the tapered roller
bearing on the stub axle (Fig. 4).
(2) Grease the outer tapered roller bearing thor-
oughly and push onto the steering knuckle (Fig. 4).
NOTE: The smooth side of the thrust washer must
point toward the wheel bearing.
(3) Install the thrust washer (Fig. 4).
(4) Install the clamping nut (Fig. 4). Tighten to 12
N´m (9 ft. lbs.) and then loosen a half of a turn.
(5) Check for wheel bearing end play. End play
should be 0.02- 0.04 mm (0.000787 - 0.00158 in.)
(Fig. 3) (Refer to 2 - SUSPENSION/FRONT/HUB /
BEARING - DIAGNOSIS AND TESTING).
(6) Pack the grease cap half with grease and coat
at the edge with sealant and install the cap (Fig. 4).
(7) Install the disc brake rotor (Refer to 5 -
BRAKES/HYDRAULIC/MECHANICAL/ROTORS -
INSTALLATION).
(8) Install the disc brake caliper adapter (Refer to
5 - BRAKES/HYDRAULIC/MECHANICAL/DISC
BRAKE CALIPER ADAPTER - INSTALLATION).
(9) Install the wheel flange ring (if equipped with
dual rear wheels) (Fig. 5).
(10) Install the front tire & wheels assembly
(Refer to 22 - TIRES/WHEELS/WHEELS - INSTAL-
LATION).
(11) Lower the vehicle.
KNUCKLE
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the front wheels (Refer to 22 - TIRES/
WHEELS/WHEELS - REMOVAL).
(3) Remove the disc brake caliper adapter (Refer to
5 - BRAKES/HYDRAULIC/MECHANICAL/DISC
BRAKE CALIPER ADAPTER - REMOVAL).
(4) Remove the hub/bearing (Refer to 2 - SUSPEN-
SION/FRONT/HUB / BEARING - REMOVAL).
(5) Separate the outer tie rod from the steering
knuckle (Fig. 6) using special tool C-3894±A.
(6) Raise the lower control arm approximately 10
mm using a jack.In order to eliminate tensile
force in the damper strut.
(7) Remove the ABS sensor from the knuckle by
pulling straight out.
(8) Remove the strut at the knuckle (Fig. 6).
(9) Separate the lower ball joint from the steering
knuckle using special tool 9282 (Fig. 6).
(10) Remove the steering knuckle from the vehicle
(Fig. 6).
Fig. 4 FRONT WHEEL HUB WITH SINGLE REAR
WHEELS (SRW)
1 - CALIPER ADAPTER BOLT
2 - DISC BRAKE CALIPER
3 - INNER BEARING
4 - WHEEL HUB
5 - DISC BRAKE ROTOR
6 - OUTER BEARING
7 - THRUST WASHER
8 - CLAMPING NUT
9 - GREASE CAP
10 - LOCKING BOLT
11 - GREASE SEAL
12 - STEERING KNUCKLE
Fig. 5 FRONT WHEEL HUB WITH DUAL REAR
WHEELS (DRW)
1 - ADAPTER BOLT
2 - DISC BRAKE CALIPER
3 - INNER BEARING RACE
4 - WHEEL HUB
5 - DISC BRAKE ROTOR
6 - LOCKING BOLT
7 - WHEEL FLANGE RING
8 - OUTER BEARING
9 - THRUST WASHER
10 - CLAMPING NUT
11 - GREASE CAP
12 - WHEEL FLANGE RING MOUNTING BOLT
13 - GREASE SEAL
14 - STEERING KNUCKLE
VAFRONT 2 - 5

(11) Separate the lower ball joint from the knuckle
using special tool 9282.
(12) Remove the lower control arm nuts and bolts
from the frame.
(13) Remove the lower control arm from the frame
(Fig. 9).
NOTE: To avoid damaging the transverse leaf
spring, cushion the pad on the jack accordingly.
(14) Support the transverse leaf spring in the cen-
ter with a jack.
(15) Remove the left and right spring clamp plates
(Refer to 2 - SUSPENSION/FRONT/SPRING CLAMP
PLATES - REMOVAL) (Fig. 9).
NOTE: The upper spring blocks between the engine
cradle and the spring are color coded, Make sure
not to mix the blocks per sides. The blocks are dif-
ferent in sizes to accommodate the weight of the
vehicle and driver in order for the vehicle to sit
level.
(16) Lower the jack and remove the transverse leaf
spring towards the side.INSTALLATION
NOTE: To avoid damaging the transverse leaf
spring, cushion the pad on the jack accordingly.
NOTE: Hand tighten all bolts until vehicle is on the
ground, unless the bushings may become distorted.
NOTE: The height blocks between the engine cradle
and the spring are color coded, Make sure not to
mix the blocks per sides. The blocks are different in
sizes to accommodate the weight of the vehicle and
driver in order for the vehicle to sit level.
(1) Install the transverse leaf spring in the center
with a jack with all the rubber mounts attached.
(2) Install the lower control arm to the frame (Fig.
9).
(3) Install the knuckle on the lower ball joint.
(4) Raise the lower control arm approximately 10
mm with a jack.
(5) Install both stop plate bolts to the lower control
arm
(6) Install the strut bolts to the steering knuckle.
(7) Reinstall the tie rod to the steering knuckle
(Fig. 9). Tighten to 150 N´m (110 ft. lbs.).
(8) Install the ABS sensor all the way into the
steering knuckle, the sensor will adjust automatically
when the vehicle is moved (Fig. 9).
(9) Install the disc brake caliper adapter (Fig. 9).
Tighten to 170 N´m (125 ft. lbs.).
(10) Install the front wheels.
(11) Lower the vehicle.
(12) Install the spring clamp plates (Fig. 9).
Tighten (M-10 bolts) to 65 N´m (48 ft. lbs.) (M-12
bolts) to 130 N´m (96 ft. lbs.).
(13) Roll the vehicle approximately 1 mm forwards
and the backwards, and rock firmly.
(14) Tighten the nuts on the lower control arm to
the frame to 150 N´m (110 ft. lbs.).
(15) Apply brake to actuate brake pressure.
SPRING CLAMP PLATES
REMOVAL
(1) Raise and support the vehicle.
(2) Install a jack under the lower ball joint and
lower the weight of the vehicle enough to allow a
wrench between the lower control arm and the
bracket tighten the nut.
(3) Remove the front and rear bolts to the spring
clamp plates.
(4) Remove the four inner retaining bolts and
nuts.
Fig. 9 FRONT SPRING
1 - NUT
2 - STRUT
3 - STOP PLATE
4 - STOP PLATE BOLT
5 - CALIPER ADAPTER BOLT
6 - DISC BRAKE CALIPER
7 - OUTER TIE ROD END NUT
8 - ABS SENSOR
9 - SPEED SENSOR
10 - LOWER CONTROL ARM RETAINING NUTS
11 - OUTER TIE ROD END
12 - RUBBER SPRING MOUNT
13 - SHEAR BUSHING
14 - SPRING CLAMP PLATE BOLT
15 - SPRING CLAMP PLATE
16 - LOWER RUBBER SPRING MOUNT
17 - SPRING
18 - STRUT BOLTS
19 - LOWER CONTROL ARM BOLTS
2 - 8 FRONTVA

SPRING
DESCRIPTION
The rear suspension system uses a multi-leaf
springs and a solid drive axle. The forward end of the
springs are mounted to the body rail hangers
through rubber bushings. The rearward end of the
springs are attached to the body by the use of shack-
les. The spring and shackles use rubber bushings.
OPERATION
The springs control ride quality and maintain vehi-
cle ride height. The shackles allow the springs to
change their length as the vehicle moves over various
road conditions.
REMOVAL
REMOVAL - (SRW)
(1) Raise and support the vehicle.
(2) Support the rear axle.
(3) Remove the U-bolt and spring plate (Fig. 2).
(4) Remove the spring from the front spring
bracket (Fig. 2).
(5) Remove the rear spring with the spring shackle
from the spring bracket (Fig. 2).
(6) Lower the rear axle and remove the rear
spring.
(7) Remove the spring shackle from the spring (if
needed) (Fig. 2).
REMOVAL - (DRW)
(1) Raise and support the vehicle.
(2) Support the rear axle.
(3) Remove the U-bolt and spring plate (Fig. 3).
(4) Remove the spring from the front spring
bracket (Fig. 3).
(5) Remove the rear spring with the spring shackle
from the spring bracket (Fig. 3).
(6) Lower the rear axle and remove the rear
spring.
(7) Remove the spring shackle from the spring (if
needed) (Fig. 3).
INSTALLATION
INSTALLATION - (SRW)
NOTE: Larger spring bushing goes toward the front.
(1) Install the spring shackle to the spring (if
removed) (Fig. 2). Tighten to 90 N´m (66 ft. lbs.).
(2) Install the spring to the front spring bracket
(Fig. 2). Tighten to 95 N´m (70 ft. lbs.).
(3) Install the spring to the rear spring bracket
(Fig. 2). Tighten to 85 N´m (63 ft. lbs.).
(4) Raise the rear axle and attach the spring plate
and U-bolts (Fig. 2). Tighten to 170 N´m (125 ft. lbs.).
(5) Lower the vehicle.
Fig. 2 REAR LEAF SPRING WITH SINGLE REAR
WHEELS
1 - NUT
2 - LEAF SPRING
3 - U-BOLTS
4 - PLATE
5 - SPRING BOLT
6 - SHACKLE BOLT
7 - SPRING SHACKLE
8 - U-BOLT NUTS
Fig. 3 REAR LEAF SPRING WITH DUAL REAR
WHEELS
1 - U-BOLTS
2 - NUT
3 - BOLT
4 - SPRING SHACKLE
5 - U-BOLT MOUNTING NUT
6 - U-BOLT BRACKET ALIGNING PLATE
7 - LEAF SPRING
2 - 14 REARVA

INSTALLATION - (DRW)
NOTE: Larger spring bushing goes toward the front.
(1) Install the spring shackle to the spring (if
removed) (Fig. 3). Tighten to 185 N´m (136 ft. lbs.).
(2) Install the spring to the front spring bracket
(Fig. 3). Tighten to 185 N´m (136 ft. lbs.).
(3) Install the spring to the rear spring bracket
(Fig. 3). Tighten to 185 N´m (136 ft. lbs.).
(4) Raise the rear axle and attach the spring plate
and U-bolts (Fig. 3). Tighten to 170 N´m (125 ft. lbs.).
(5) Lower the vehicle.
SPRING SHACKLE
REMOVAL
(1) Raise and support the vehicle.
(2) Support the rear axle.
(3) Remove both the rear spring shackles from the
spring bracket.
(4) Lower the rear axle and remove the rear spring
shackle from the spring.
INSTALLATION
(1) Install the spring shackle to the spring.
Tighten to 90 N´m (66 ft. lbs.).
(2) Raise the rear axle while installing the spring
shackle to the spring bracket. Tighten to 85 N´m (63
ft. lbs.).
(3) Lower the vehicle.
STABILIZER BAR
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the stabilizer links at the bar (Fig. 4).
(3) Remove the stabilizer bar clamp at the axle
(Fig. 4).
(4) Remove the bracket (Fig. 4)
(5) Remove the stabilizer bar from the vehicle.
INSTALLATION
(1) Install the stabilizer bar to the axle.
(2) Install the stabilizer bar clamps and bracket,
center the bar then tighten to 25 N´m (18ft. lbs.)
(SRW) (Fig. 4) or Tighten to 70 N´m (52 ft. lbs.) for
(DRW) (Fig. 5).
(3) Install the stabilizer bar to the stabilizer links
and tighten to 95 N´m (60 ft. lbs.) (Fig. 4) or (Fig. 5).
(4) Lower the vehicle.
Fig. 4 SWAY BAR WITH SINGLE REAR WHEELS
(SRW)
1 - M12 NUT
2 - BUSHING
3 - SWAY BAR LINK
4 - M12 BOLT
5-SWAYBAR
6 - CLAMP
7-M8BOLT
8 - BRACKET
9 - FOUR POINT NUT M8
10 - WASHER
11-M8NUT
12 - BUSHING
13 - MOUNT
VAREAR 2 - 15

(1) Raise axle into position.
(2) Install plates and U-brackets (Fig. 4) and (Fig.
5) withnewnuts. Tighten nuts to 170 N´m (125 ft.
lbs.).
(3) Install propeller shaft and tighten bolts to 70
N´m (52 ft. lbs.).
NOTE: On installation of the propeller shaft, joint
arrows must be flush and must point towards the
frame floor. Tighten the propeller shaft in this posi-
tion.
(4) Install ALB lever to axle bracket and tighten
newnut 34 N´m (46 ft. lbs.).
(5) Install shock absorbers to rear axle and tighten
bolts to:
²M12 x 1.5 Bolt - 70 N´m (52 ft. lbs.)
²M14 x 1.5 Bolt - 110 N´m (81 ft. lbs.)
(6) Install stabilizer bar to axle and tighten bolts
to:
²SRW Axle - 25 N´m (18 ft. lbs.)²DRW Axle - 70 N´m (52 ft. lbs.)
(7) Install calipers with adapters and lines.
(8) Install brake hoses and hold-down clips.
(9) Install and adjust park brake cables.
(10) Install connection cable of brake pad wear
indicator and ABS sensor cable up to the relay unit
of the parking brake.
(11) Install cable ties to the park brake cables.
(12) Install ABS sensor and clamp bushing to
mounting bore.
NOTE: The right-hand ABS sensor cable is labeled
at the factory with a white tag.
(13) Attach connector cable for brake pad wear
indicator.
(14) Plug in cable of brake pad wear indicator.
(15) Install the wheels and tires.
(16) Fill axle with appropriate lubricant.
(17) Remove lifting device from under the axle.
(18) Remove support and lower vehicle.
Fig. 5 DUAL REAR WHEEL AXLE
1 - SPRING 12 - BRAKE HOSE
2 - SPRING SHACKLE 13 - LUG NUT
3 - PLATE 14 - NUT
4 - COLLAR NUT 15 - WASHER
5 - BRAKE CABLE 16 - BOLT
6 - REAR AXLE 17 - SHOCK ABSORBER
7 - ALB LEVER 18 - PROPELLER SHAFT
8 - NUT 19 - BOLT
9 - BOLT 20 - ABS SENSOR
10 - WEAR INDICATOR CABLE 21 - SENSOR BUSHING
11 - WEAR INDICATOR CONNECTOR
VAREAR AXLE 3 - 17

INSTALLATION
(1) Clean sealing surface of bearing cap.
(2) Install axle shaft seal into bearing cover (1)
with Installer 9278 (2) (Fig. 15).
NOTE: Install flush to a max. 3 mm (0.12 in.) deep
inside the bearing cover.
(3) Check roller bearing (1), and replace if neces-
sary.
NOTE: Thoroughly grease roller bearings prior to
installation with Mopar High Temp Light Bearing
Grease.
(4) Install bearing cover with axle shaft seal,new
gasket and dust shield on the axle shaft.
(5) Install tapered roller bearings (1) and race (2)
on the axle shaft (Fig. 16).(6) Installnewlocking ring (1) on axle shaft (2).
NOTE: The flat side of the locking ring must point
towards the nut (Fig. 17). The locking ring is fitted
to ensure the pressing is done over the inner bear-
ing race only. The flat on the locking ring must be
aligned with the flat on the axle shaft otherwise the
axle shaft will be damaged.
(7) Place axle shaft (2) through the hole in Plate
9277 (3) and position the assembly in a press (1)
(Fig. 18).
(8) Press tapered roller bearing onto rear axle
shaft as far as the stop.
CAUTION: In order to avoid damaging the bearing,
the outer race must be turned while pressing on.
Fig. 15 SEAL INSTALLER
1 - INSTALLER
2 - BEARING COVER
Fig. 16 BEARINGS AND RACE
1 - BEARINGS
2 - RACE
Fig. 17 BEARING AND SHAFT
1 - LOCKING RING
2 - AXLE SHAFT
3 - BEARING
4 - DUST SHIELD
Fig. 18 PRESSING AXLE SHAFT
1 - PRESS
2 - AXLE SHAFT
3 - PLATE
3 - 26 REAR AXLEVA

(3) Check the brake system for any leaks.
(4) Reconnect the electrical connector to the brake
fluid level indicator (Fig. 14).
ALB LEVER
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the retaining clip for the ALB lever
(Fig. 15).
(3) Remove the bolt for the lever at the axle (Fig.
15).
(4) Remove the lever.
INSTALLATION
(1) Install the lever to the vehicle.
(2) Install the lower mounting bolt to the axle (Fig.
15).
(3) Install the lever to the shock bolt and then
install the clip (Fig. 15).
(4) Check the side deflection of the ALB lever with
a straight edge from Point-A to Point-B as the
graphic shows. Max deflection play of the actuator
rod should be no more than 15 mm (.60 in) (Fig. 15).
(5) Lower the vehicle.
ALB CONTROLLER
REMOVAL
(1) Install the brake pedal rod to hold the brake
pressure.
(2) Raise and support the vehicle.(3) Remove the brake lines to the (automatic load-
dependant brake pressure control) ALB controller.
(4) Remove the adjusting nut and the spring from
the ALB controller.
(5) Remove the mounting bolts.
(6) Remove the ALB controller.
INSTALLATION
(1) Install the ALB controller to the vehicle.
(2) Install the mounting bolts for the controller.
(3) Install the brake lines. Tighten the lines to 16
N´m (142 in. lbs.)
(4) Install the adjusting rod, nut and spring to the
ALB controller.
(5) Lower the vehicle.
(6) Remove the brake pedal hold down rod.
(7) Fill and bleed the brake system (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
(8) Raise the vehicle and adjust the ALB controller
(Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/
ALB CONTROLLER - ADJUSTMENTS).
(9) Lower the vehicle and test drive.
ADJUSTMENTS
ADJUSTMENT
(1) Clean any debris away from the test ports caps
at the ALB controller.
(2) Connect brake adapters special tool 9297 to the
test ports at the ALB controller.
(3) Install a Pressure Gauge, Special Tool
C-4007-A, to the adapters.
(4) Tighten all tube nut fittings to 17 N´m (145 in.
lbs.) torque.
(5) Bleed any air out of the system. This includes
bleeding the air from the hose between the pressure
test fitting and pressure gauge, which is done at the
pressure gauge.
NOTE: Adjustment is determined for the automatic
load-dependent brake power control system accord-
ing to the ALB plate. This is housed in the stowage
compartment under the front passenger's door
panel. The part number of the rear spring is
stamped into the spring eye. This must correspond
to the part number of the rear spring on the ALB
plate.
(6) To accurately adjust the rear axle load you
must first determine the rear axle load by weighing
the vehicle at a local scale.
(7) Install the brake pedal winch Special tool 9296
between the brake pedal and the driver seat and
slowly turn the dial until the specified inlet brake
pressure is indicated at the gauge.
Fig. 15 ALB LEVER DEFLECTION
1 - CLIP
2 - SPRING
3 - LEVER
4 - STRIAGHT EDGE
5 - NUT
6 - POINT -A
7 - POINT - B
8 - SUSPENSION POINT
5 - 16 BRAKES - BASEVA

COOLING
TABLE OF CONTENTS
page page
COOLING
OPERATION - COOLING SYSTEM...........1
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - PRELIMINARY
CHECKS.............................1COOLING SYSTEM.....................2
ACCESSORY DRIVE.......................5
ENGINE.................................9
COOLING
OPERATION - COOLING SYSTEM
The cooling system regulates engine operating tem-
perature. It allows the engine to reach normal oper-
ating temperature as quickly as possible. It also
maintains normal operating temperature and pre-
vents overheating.
The cooling system also provides a means of heat-
ing the passenger compartment and cooling the auto-
matic transmission fluid (if equipped). The cooling
system is pressurized and uses a centrifugal water
pump to circulate coolant throughout the system.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - PRELIMINARY
CHECKS
ENGINE COOLING SYSTEM OVERHEATING
Establish what driving conditions caused the com-
plaint. Abnormal loads on the cooling system such as
the following may be the cause:
²PROLONGED IDLE
²VERY HIGH AMBIENT TEMPERATURE
²SLIGHT TAIL WIND AT IDLE
²SLOW TRAFFIC
²TRAFFIC JAMS
²HIGH SPEED OR STEEP GRADES
Driving techniques that avoid overheating are:
²Idle with A/C off when temperature gauge is at
end of normal range.²Increasing engine speed for more air flow is rec-
ommended.
TRAILER TOWING:
Consult Trailer Towing section of owners manual.
Do not exceed limits.
AIR CONDITIONING; ADD - ON OR AFTER MARKET:
A maximum cooling package should have been
ordered with vehicle if add-on or after market A/C is
installed. If not, maximum cooling system compo-
nents should be installed for model involved per
manufacturer's specifications.
RECENT SERVICE OR ACCIDENT REPAIR:
Determine if any recent service has been per-
formed on vehicle that may effect cooling system.
This may be:
²Engine adjustments (incorrect timing)
²Slipping engine accessory drive belt(s)
²Brakes (possibly dragging)
²Changed parts. Incorrect water pump or pump
rotating in wrong direction due to belt not correctly
routed
²Reconditioned radiator or cooling system refill-
ing (possibly under filled or air trapped in system).
NOTE: If investigation reveals none of the previous
items as a cause for an engine overheating com-
plaint, (Refer to 7 - COOLING - DIAGNOSIS AND
TESTING)
VACOOLING 7 - 1

HEATED SYSTEMS
TABLE OF CONTENTS
page page
HEATED GLASS........................... 1
HEATED MIRRORS......................... 9HEATED SEATS........................... 10
HEATED GLASS
TABLE OF CONTENTS
page page
HEATED GLASS
DESCRIPTION..........................1
OPERATION............................1
DIAGNOSIS AND TESTING
ELECTRIC BACKLIGHT (EBL) SYSTEM.....2
REAR WINDOW DEFOGGER RELAY
DESCRIPTION..........................3
OPERATION............................3
REMOVAL.............................4
INSTALLATION..........................4REAR WINDOW DEFOGGER SWITCH
DESCRIPTION..........................4
OPERATION............................4
DIAGNOSIS AND TESTING
REAR WINDOW DEFOGGER SWITCH......5
REMOVAL.............................6
INSTALLATION..........................6
REAR WINDOW DEFOGGER GRID
STANDARD PROCEDURE
GRID LINE AND TERMINAL REPAIR........7
HEATED GLASS
DESCRIPTION
CAUTION: Grid lines can be damaged or scraped
off with sharp instruments. Care should be taken in
cleaning glass or removing foreign materials,
decals or stickers. Normal glass cleaning solvents
or hot water used with rags or toweling is recom-
mended.
The rear window defogger system, also known as
the electric backlight (EBL), consists of a backglass
with two vertical bus bars linked by a series of grid
lines fired onto the inside surface of the rear window.
The EBL system is turned On or Off by a control
switch (Fig. 1) located in the instrument panel near
the right side of the steering wheel, which sends a
request signal to the rear window defogger module
that operates the left and right rear window defogger
relays located in the fuse/relay block under the driv-
ers seat.
Circuit protection is provided by a 30 amp fuse
also located in the fuse/relay block.
OPERATION
When the rear window defogger switch is pressed
to the On position, current is directed through the
switch to the rear window defogger module. The rear
window defogger module then grounds the control
side of the left and right rear window defogger (EBL)
Fig. 1 Rear Window Defogger Switch
1 - REAR WINDOW DEFOGGER SWITCH
2 - INSTRUMENT PANEL
VAHEATED SYSTEMS 8G - 1

The heated seat system components operate on
battery current received through a fuse in the Fuse
Block on a fused ignition switch output (run-acc) cir-
cuit so that the system will only operate when the
ignition switch is in the On or Accessory positions.
The heated seat system will be turned Off automati-
cally whenever the ignition switch is turned to any
position except On or Accessory. Also, the heated seat
system will not operate when the surface tempera-
ture of the seat cushion cover at either heated seat
sensor is above the designed temperature set points
of the system.DIAGNOSIS AND TESTING - HEATED SEATS
Refer toWiringfor the appropriate wiring infor-
mation. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures,
further details on wire harness routing and reten-
tion, as well as pin-out and location views for the
various wire harness connectors, splices and grounds.
HEATED SEAT SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
NO HEATED SEAT SWITCH
ILLUMINATION WITH IGNI-
TION ON1. Faulty fuse. 1. Check heated seat fuse in Fuse Block. Re-
place fuse, if required.
2. Wiring faulty. 2. Check fused ignition switch output (run-acc)
circuit from heated seat switch connector to igni-
tion switch. Repair, if required.
3. Ground faulty. 3. Check for ground at heated seat switch con-
nector. Repair, if required.
4. Faulty switch. 4. Refer to Heated Seat Switch for the proper
switch diagnosis and testing procedures.
DRIVER HEATED SEAT
SWITCH
DESCRIPTION
The heated seat switches are located on the instru-
ment panel, in the accessory switch bezel. The two,
momentary rocker type switches provide a signal to
the Heated Seat Relay through separate hard wired
circuits. Each switch contains two light emitting
diodes (LED), one for each High and Low setting to
let the occupant know that the seat heater system is
on.
The heated seat switches and their LED's cannot
be repaired. If either switch is faulty or damaged the
entire switch must be replaced.
OPERATION
There are three modes that can be selected with
each of the heated seat switches: Off, Low, and High.
When the top of the switch rocker is depressed, the
low mode is selected and the low mode LED indicator
illuminates. Depressing the top of the switch rocker a
second time will turn the heated seat to Off. This
same process is repeated for High heat setting. The
heated seats will automatically return to the Off
mode anytime the vehicle ignition switch is turned
Off.Both switches provide separate hard wire inputs to
the Heated Seat Relay to indicate the selected mode.
The Heated Seat Relay responds to the heated seat
switch messages by controlling the output to the seat
heater elements of the selected seat.
DIAGNOSIS AND TESTING - DRIVER HEATED
SEAT SWITCH
For circuit description and diagrams, refer toWir-
ing.
(1) Inspect the Heated Seat Switches for apparent
damage or sticking/binding and replace if required.
Refer to Heated Seat Switch Removal and Installa-
tion in this section.
(2) Replace the heated seat switch with a known
good unit and retest the heated seat system.
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Remove the gear selector bezel trim. Refer to
the Body section for the procedure.
(3) Remove the storage bin. Refer to the Body sec-
tion for the procedure.
(4) Remove the switch bezel retaining screw and
remove the switch bezel from the instrument panel.
Refer to the Body section for the procedure.
(5) Disconnect electrical connections.
VAHEATED SEATS 8G - 11