IGNITION SWITCH C1 - BLACK 7 WAY
CAV CIRCUIT FUNCTION
1 A41 14YL IGNITION SWITCH OUTPUT (START)
2 A21 12DB IGNITION SWITCH OUTPUT (RUN-START)
3- -
4 A2 14PK/BK FUSED B(+)
5 A22 14BK/OR IGNITION SWITCH OUTPUT (RUN)
6 A31 12BK/WT IGNITION SWITCH OUTPUT (RUN-ACC)
7 A1 10RD FUSED B(+)
IGNITION SWITCH C2 - GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 Z3 22BK/OR ((HIGHLINE/PREMIUM)) GROUND
1 G75 22TN (BASE) DRIVER DOOR AJAR SWITCH SENSE
2 G26 22LB KEY-IN IGNITION SWITCH SENSE
3- -
4- -
INSTRUMENT CLUSTER C1 - 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 G5 22DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 G11 22WT/LG PARK BRAKE SWITCH SENSE
4 Z2 20BK/LG GROUND
5 Z3 20BK/OR GROUND
6 F73 20YL FUSED B(+)
7- -
8 G85 22OR/BK (DIESEL) WAIT-TO-START WARNING INDICATOR DRIVER
9 D2 20WT/BK CCD BUS (-)
10 D1 20VT/BR CCD BUS (+)
INSTRUMENT CLUSTER C2 - 10 WAY
CAV CIRCUIT FUNCTION
1 E2 22OR PANEL LAMPS FEED
2 G29 22BK/WT WASHER FLUID SWITCH SENSE
3 G10 22LG/RD SEAT BELT SWITCH SENSE
4- -
5 E17 18YL/BK DAY BRIGHTNESS SENSE
6 L61 18LG LEFT TURN SIGNAL
7 G13 22DB/RD CHIME REQUEST SIGNAL
8 L60 18TN RIGHT TURN SIGNAL
9 G34 16RD/GY HIGH BEAM INDICATOR DRIVER
10 G107 22GY 4WD SWITCH SENSE
INTAKE AIR HEATER RELAYS (DIESEL)-4WAY
CAV CIRCUIT FUNCTION
1 S22 18OR/BK AIR INTAKE HEATER RELAY CONTROL NO. 2
2 Z12 18BK/TN GROUND
3 S21 18YL/BK AIR INTAKE HEATER RELAY CONTROL NO. 1
4 Z12 18BK/TN GROUND
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 47
TRAILER TOW CONNECTOR - 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L62 16BR/RD RIGHT TURN SIGNAL
3 L1 18VT/BK BACK-UP LAMP FEED
4 A6 14RD/OR FUSED B(+)
5 L76 14BK/OR TRAILER TOW RELAY OUTPUT
6- -
7 B40 14LB TRAILER TOW BRAKE B(+)
8 Z13 14BK GROUND
9 Z13 14BK GROUND
10 L63 16DG/RD LEFT TURN SIGNAL
TRANSMISSION SOLENOID ASSEMBLY-8WAY
CAV CIRCUIT FUNCTION
1 T16 18RD TRANSMISSION CONTROL RELAY OUTPUT
2 K7 18OR 5V SUPPLY
3 K4 18BK/LB SENSOR GROUND
4 T25 18LG/WT GOVERNOR PRESSURE SENSOR SIGNAL
5 K88 18VT/WT GOVERNOR PRESSURE SOLENOID CONTROL
6 T60 18BR 3-4 SHIFT SOLENOID CONTROL
7 K54 18OR/BK TORQUE CONVERTER CLUTCH SOLENOID CONTROL
8 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
UNDERHOOD LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 M1 20PK FUSED B(+)
WASHER FLUID LEVEL SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G29 18BK/WT WASHER FLUID SWITCH SENSE
2 Z1 18BK GROUND
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 77
CONDITION POSSIBLE CAUSE CORRECTION
VEHICLE PULLS OR LEADS TO
ONE SIDE.1. Tire Pressure. 1. Adjust tire pressure.
2. Radial tire lead. 2. Rotate tires.
3. Brakes dragging. 3. Repair as necessary.
4. Wheel alignment. 4. Align front end.
DIAGNOSIS AND TESTING - POWER STEERING
FLOW AND PRESSURE
The following procedure is used to test the opera-
tion of the power steering system on the vehicle. This
test will provide the flow rate of the power steering
pump along with the maximum relief pressure. Per-
form test any time a power steering system problem
is present. This test will determine if the power
steering pump or power steering gear is not function-
ing properly. The following pressure and flow test is
performed using Power Steering Analyzer Tool kit
6815 (Fig. 2) and Adapter Kit 6893.
POWER STEERING ANALYZER INSTALLATION
WITHOUT HYDRAULIC BOOSTER
(1) Remove the high pressure hose from the power
steering pump.
(2) Connect Tube 6844 into the pump hose fitting.(3) Connect pressure gauge hose from the Power
Steering Analyzer to Tube 6844.
(4) Connect Adapter 6826 to Power Steering Ana-
lyzer test valve end.
(5) Connect the power steering hose from the
steering gear to Adapter 6826.
WITH HYDRAULIC BOOSTER
(1) Remove high pressure hose which goes to the
steering gear from the tube coming out of the booster.
(2) Connect Adapter 6826 to the Power Steering
Analyzer pressure gauge hose.
(3) Connect pressure gauge hose to the tube com-
ing out of the booster.
(4) Connect Tube 6844 to the steering gear hose
and Power Steering Analyzer test valve end.
FLOW AND PRESSURE TEST
(1) Check belt condition and tension.
(2) Open the test valve completely.
(3) Start engine and let idle long enough to circu-
late power steering fluid through flow/pressure test
gauge and to get air out of the fluid. Then shut off
engine.
(4) Check fluid level, add fluid as necessary. Start
engine again and let idle.
(5) Gauge should read below 1034 kPa (150 psi), if
above, inspect the hoses for restrictions and repair as
necessary. The initial pressure reading should be in
the range of 345-552 kPa (50-80 psi).
(6) Increase the engine speed to 1500 RPM and
read the flow meter. If the flow rate (GPM) is below
specification (Refer to pump specification chart for
GPM) the pump should be replaced.
CAUTION: The following test procedure involves
testing maximum pump pressure output and flow
control valve operation. Do not leave valve closed
for more than three seconds as the pump could be
damaged.
Fig. 2 Pressure Test Gauge
1 - GAUGE HOSE
2 - TUBE
3 - ADAPTER FITTINGS
4 - ANALYZER
19 - 4 STEERINGBR/BE
STEERING (Continued)
(9) Slide the steering pump from the bracket. Use
care not to damage the internal oil seal in the vac-
uum pump (Fig. 9).
(10) Remove the two pump body spacers.
INSTALLATION - GASOLINE ENGINE
(1) Install the front pump bracket and tighten
bolts to 47 N´m (35 ft. lbs.). On 8.0L engine install
rear pump bracket and tighten nut to 47 N´m (35 ft.
lbs.), tighten bolts to 24 N´m (18 ft. lbs.).
(2) Install the pump pulley with Installer
C-4063±B, (Refer to 19 - STEERING/PUMP/PULLEY
- INSTALLATION).
(3) Install steering pump assembly on the engine
block. Install the upper stud and bolt in bracket.
(4) Pivot the pump down past the coolant tube and
install the lower bolts in bracket.(5) Tighten the bolts and nut to 41 N´m (30 ft.
lbs.).
(6) Connect the hoses to the pump.
(7) Install the serpentine drive belt, (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION), (Refer to 7 - COOLING/ACCES-
SORY DRIVE/DRIVE BELTS - INSTALLATION).
(8) Fill the reservoir with power steering fluid,
(Refer to 19 - STEERING/PUMP - STANDARD PRO-
CEDURE).
INSTALLATION - DIESEL ENGINE
(1) Install the two pump body spacers.
(2) Rotate the drive gear until the steering pump
and vacuum pump drive dogs align. Install the steer-
ing pump onto the vacuum pump bracket. Use care
to avoid damaging the oil seal in the vacuum pump
during installation.The steering pump housing
and spacers must mate completely with the
vacuum pump bracket.
(3) Install the vacuum pump bracket to steering
pump nuts and tighten to 24 N´m (18 ft. lbs.).
(4) Position new gasket on vacuum pump assem-
bly. Use sealer if necessary to retain the gasket.
(5) Align and install the pump assembly on the
engine. Ensure the steering pump stud is inserted
into the block bracket. Tighten the pump- to-engine
block attaching bolts to 77 N´m (57 ft. lbs.).
(6) Install the steering pump to attaching bracket
nut and tighten to 24 N´m (18 ft. lbs.).
(7) Remove plug and install the oil pressure send-
ing unit and electrical connector.
(8) Install the oil feed line to the vacuum pump.
Tighten the oil line connection to 7 N´m (60 in. lbs./ 5
ft. lbs.).
(9) Install the fluid hoses to the power steering
pump. Tighten the pressure fitting at the pump to 31
N´m (23 ft. lbs.).
(10) Install and clamp the hose on the vacuum
pump.
(11) Install the serpentine belt, (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION).
(12) Fill the reservoir with power steering fluid,
(Refer to 19 - STEERING/PUMP - STANDARD PRO-
CEDURE).
(13) Start the engine and check the operation of
the brakes.
Fig. 9 Steering Pump & Vacuum Pump
1 - PUMP SHAFT
2 - VACUUM FITTING
3 - VACUUM PUMP DRIVE
4 - OIL SEAL
5 - MOUNTING BRACKET
6 - DRIVE DOG
7 - PUMP SPACERS
BR/BEPUMP 19 - 35
PUMP (Continued)
PROCEDURE ONE
(1) Transmission fluid must be at normal operat-
ing temperature for accurate fluid level check. Drive
vehicle if necessary to bring fluid temperature up to
normal hot operating temperature of 82ÉC (180ÉF).
(2) Position vehicle on level surface.
(3) Start and run engine at curb idle speed.
(4) Apply parking brakes.
(5) Shift transmission momentarily into all gear
ranges. Then shift transmission back to NEUTRAL.
(6) Clean top of filler tube and dipstick to keep
dirt from entering tube.
(7) Remove dipstick (Fig. 80) and check fluid level
as follows:
(a) Correct acceptable level is in crosshatch area.
(b) Correct maximum level is to MAX arrow
mark.
(c) Incorrect level is at or below MIN line.
(d) If fluid is low, add only enough MopartAT F
+4, type 9602, to restore correct level. Do not over-
fill.
PROCEDURE TWO
(1) Start engine and apply parking brake.
(2) Shift the transmission into DRIVE for approxi-
mately 2 seconds.
(3) Shift the transmission into REVERSE for
approximately 2 seconds.
(4) Shift the transmission into PARK.(5) Hook up DRBtscan tool and select engine.
(6) Select sensors.
(7) Read the transmission temperature value.
(8) Compare the fluid temperature value with the
figure. (Fig. 81)
(9) Adjust transmission fluid level shown on the
dipstick according to the figure.
NOTE: After adding any fluid to the transmission,
wait a minimum of 2 minutes for the oil to fully
drain from the fill tube into the transmission before
rechecking the fluid level.
(10) Check transmission for leaks.
Fig. 80 Dipstick Fluid Level Marks - Typical
1 - DIPSTICK
2 - MAXIMUM CORRECT FLUID LEVEL
3 - ACCEPTABLE FLUID LEVEL
Fig. 81 42/44RE Fluid Fill Graph
21 - 200 AUTOMATIC TRANSMISSION - 42REBR/BE
FLUID AND FILTER (Continued)
STANDARD PROCEDURE - FLUID AND FILTER
REPLACEMENT
For proper service intervals (Refer to LUBRICA-
TION & MAINTENANCE/MAINTENANCE SCHED-
ULES - DESCRIPTION). The service fluid fill after a
filter change is approximately 3.8 liters (4.0 quarts).
(1) Hoist and support vehicle on safety stands.
(2) Place a large diameter shallow drain pan
beneath the transmission pan.
(3) Remove bolts holding front and sides of pan to
transmission (Fig. 82).
(4) Loosen bolts holding rear of pan to transmis-
sion.
(5) Slowly separate front of pan away from trans-
mission allowing the fluid to drain into drain pan.
(6) Hold up pan and remove remaining bolt hold-
ing pan to transmission.
(7) While holding pan level, lower pan away from
transmission.
(8) Pour remaining fluid in pan into drain pan.
(9) Remove screws holding filter to valve body
(Fig. 83).
(10) Separate filter from valve body and pour fluid
in filter into drain pan.
(11) Dispose of used trans fluid and filter properly.
STANDARD PROCEDURE - TRANSMISSION
FILL
To avoid overfilling transmission after a fluid
change or overhaul, perform the following procedure:
(1) Remove dipstick and insert clean funnel in
transmission fill tube.
(2) Add following initial quantity of MopartAT F
+4, type 9602, to transmission:(a) If only fluid and filter were changed, add3
pints (1-1/2 quarts)of ATF +4 to transmission.
(b) If transmission was completely overhauled,
torque converter was replaced or drained, and
cooler was flushed, add12 pints (6 quarts)of ATF
+4 to transmission.
(3) Apply parking brakes.
(4) Start and run engine at normal curb idle
speed.
(5) Apply service brakes, shift transmission
through all gear ranges then back to NEUTRAL, set
parking brake, and leave engine running at curb idle
speed.
(6) Remove funnel, insert dipstick and check fluid
level. If level is low,add fluid to bring level to
MIN mark on dipstick.Check to see if the oil level
is equal on both sides of the dipstick. If one side is
noticably higher than the other, the dipstick has
picked up some oil from the dipstick tube. Allow the
oil to drain down the dipstick tube and re-check.
(7) Drive vehicle until transmission fluid is at nor-
mal operating temperature.
(8) With the engine running at curb idle speed, the
gear selector in NEUTRAL, and the parking brake
applied, check the transmission fluid level.
CAUTION: Do not overfill transmission, fluid foam-
ing and shifting problems can result.
(9) Add fluid to bring level up to MAX arrow
mark.
When fluid level is correct, shut engine off, release
park brake, remove funnel, and install dipstick in fill
tube.
Fig. 82 Transmission Pan
1 - TRANSMISSION
2 - GASKET
3-PAN
Fig. 83 Transmission Filter
1 - TRANSMISSION
2 - FILTER
BR/BEAUTOMATIC TRANSMISSION - 42RE 21 - 201
FLUID AND FILTER (Continued)
PROCEDURE ONE
(1) Transmission fluid must be at normal operat-
ing temperature for accurate fluid level check. Drive
vehicle if necessary to bring fluid temperature up to
normal hot operating temperature of 82ÉC (180ÉF).
(2) Position vehicle on level surface.
(3) Start and run engine at curb idle speed.
(4) Apply parking brakes.
(5) Shift transmission momentarily into all gear
ranges. Then shift transmission back to NEUTRAL.
(6) Clean top of filler tube and dipstick to keep
dirt from entering tube.
(7) Remove dipstick (Fig. 80) and check fluid level
as follows:
(a) Correct acceptable level is in crosshatch area.
(b) Correct maximum level is to MAX arrow
mark.
(c) Incorrect level is at or below MIN line.
(d)
If fluid is low, add only enough MopartATF +4,
type 9602, to restore correct level. Do not overfill.
PROCEDURE TWO
(1) Start engine and apply parking brake.
(2) Shift the transmission into DRIVE for approxi-
mately 2 seconds.
(3) Shift the transmission into REVERSE for
approximately 2 seconds.
(4) Shift the transmission into PARK.(5) Hook up DRBtscan tool and select engine.
(6) Select sensors.
(7) Read the transmission temperature value.
(8) Compare the fluid temperature value with the
figure. (Fig. 81)
(9) Adjust transmission fluid level shown on the
dipstick according to the figure.
NOTE: After adding any fluid to the transmission,
wait a minimum of 2 minutes for the oil to fully
drain from the fill tube into the transmission before
rechecking the fluid level.
(10) Check transmission for leaks.
Fig. 80 Dipstick Fluid Level Marks - Typical
1 - DIPSTICK
2 - MAXIMUM CORRECT FLUID LEVEL
3 - ACCEPTABLE FLUID LEVEL
Fig. 81 42/44RE Fluid Fill Graph
BR/BEAUTOMATIC TRANSMISSION - 44RE 21 - 371
FLUID AND FILTER (Continued)
STANDARD PROCEDURE - FLUID AND FILTER
REPLACEMENT
For proper service intervals (Refer to LUBRICA-
TION & MAINTENANCE/MAINTENANCE SCHED-
ULES - DESCRIPTION). The service fluid fill after a
filter change is approximately 3.8 liters (4.0 quarts).
(1) Hoist and support vehicle on safety stands.
(2) Place a large diameter shallow drain pan
beneath the transmission pan.
(3) Remove bolts holding front and sides of pan to
transmission (Fig. 82).
(4) Loosen bolts holding rear of pan to transmis-
sion.
(5) Slowly separate front of pan away from trans-
mission allowing the fluid to drain into drain pan.
(6) Hold up pan and remove remaining bolt hold-
ing pan to transmission.
(7) While holding pan level, lower pan away from
transmission.
(8) Pour remaining fluid in pan into drain pan.
(9) Remove screws holding filter to valve body
(Fig. 83).
(10) Separate filter from valve body and pour fluid
in filter into drain pan.
(11) Dispose of used trans fluid and filter properly.
STANDARD PROCEDURE - TRANSMISSION
FILL
To avoid overfilling transmission after a fluid
change or overhaul, perform the following procedure:
(1) Remove dipstick and insert clean funnel in
transmission fill tube.
(2) Add following initial quantity of MopartAT F
+4, type 9602, to transmission:(a) If only fluid and filter were changed, add3
pints (1-1/2 quarts)of ATF +4 to transmission.
(b) If transmission was completely overhauled,
torque converter was replaced or drained, and
cooler was flushed, add12 pints (6 quarts)of ATF
+4 to transmission.
(3) Apply parking brakes.
(4) Start and run engine at normal curb idle
speed.
(5) Apply service brakes, shift transmission
through all gear ranges then back to NEUTRAL, set
parking brake, and leave engine running at curb idle
speed.
(6) Remove funnel, insert dipstick and check fluid
level. If level is low,add fluid to bring level to
MIN mark on dipstick.Check to see if the oil level
is equal on both sides of the dipstick. If one side is
noticably higher than the other, the dipstick has
picked up some oil from the dipstick tube. Allow the
oil to drain down the dipstick tube and re-check.
(7) Drive vehicle until transmission fluid is at nor-
mal operating temperature.
(8) With the engine running at curb idle speed, the
gear selector in NEUTRAL, and the parking brake
applied, check the transmission fluid level.
CAUTION: Do not overfill transmission, fluid foam-
ing and shifting problems can result.
(9) Add fluid to bring level up to MAX arrow
mark.
When fluid level is correct, shut engine off, release
park brake, remove funnel, and install dipstick in fill
tube.
Fig. 82 Transmission Pan
1 - TRANSMISSION
2 - GASKET
3-PAN
Fig. 83 Transmission Filter
1 - TRANSMISSION
2 - FILTER
21 - 372 AUTOMATIC TRANSMISSION - 44REBR/BE
FLUID AND FILTER (Continued)