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The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following four-pin connector and seven-pin
connector illustrations.
Four-Pin Connector
1 — Female Pins4 — Park
2 — Male Pin 5 — Left Stop/Turn
3 — Ground 6 — Right Stop/Turn
Seven-Pin Connector
1 — Battery5 — Ground
2 — Backup Lamps 6 — Left Stop/Turn
3 — Right Stop/Turn 7 — Running Lamps
4 — Electric Brakes
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Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer in an area away from heavy
traffic.
Automatic Transmission
The OVERDRIVE/DRIVE gear range can be selected
when towing. However, if frequent shifting occurs while
in this range, third gear should be selected.
NOTE:Using the third gear range while operating the
vehicle under heavy operating conditions will improve
performance and extend transmission life by reducing
excessive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than 45 minutes of continuous operation. Refer to “Mainte-
nance Schedule” for the proper maintenance intervals.
NOTE:
Check the automatic transmission fluid level
before towing.Electronic Speed Control – If Equipped
•
Do not use in hilly terrain or with heavy loads.
•When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
•Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
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The best time to check the engine oil level is about five
minutes after a fully warmed engine is shut off. Do not
check oil level before starting the engine after it has sat
overnight. Checking engine oil level when the engine is
cold will give you an incorrect reading.
Checking the oil while the vehicle is on level ground, will
improve the accuracy of the oil level readings. Maintain
the oil level between the MIN and MAX markings on the
dipstick. Adding one quart of oil when the reading is at
the MIN mark will result in a MAX reading on these
engines.
CAUTION!
Overfilling the crankcase as indicated by an oil level
above the “MAX” mark on the engine oil dipstick
will cause oil aeration, which can lead to loss of oil
pressure and an increase in oil temperature. This
could damage your engine.
Change Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed. Check the
following list to decide if any apply to you.
•Day and night temperatures are below 32°F (0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, Police, or delivery service (commercial service).
•Off-road or desert operation.
282 MAINTAINING YOUR VEHICLE
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CAUTION!
•Using a transmission fluid other than the manu-
facturer’s recommended fluid may cause deterio-
ration in transmission shift quality and/or torque
converter shudder. Using a transmission fluid
other than that recommended by the manufacturer
will result in more frequent fluid and filter
changes. Refer to “Fluids, Lubricants, and Genu-
ine Parts” in “Maintaining Your Vehicle” for fur-
ther information.
•Dirt and water in the transmission can cause
serious damage. To prevent dirt and water from
entering the transmission after checking or replen-
ishing fluid, make certain that the dipstick cap is
re-seated properly.
Fluid and Filter Changes
Automatic transmission fluid and filter should be
changed as follows:
Maintenance Schedule A— No change necessary.
Maintenance Schedule B — Every 60,000 miles
(100 000 km) change fluid and filter under the following
conditions:
•Police, taxi, limousine, commercial type operation, or
trailer towing where the vehicle is driven regularlyfor
more than 45 minutes of continuous operation.
Refer to “Maintenance Schedule” for further information.
Special Additives
Automatic Transmission Fluid (ATF) is an engineered
product and its performance may be impaired by supple-
mental additives. Therefore, do not add any fluid addi-
tives to the transmission. The only exception to this
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FUSES
Integrated Power Module (IPM)
The Integrated Power Module is located in the engine
compartment near the air cleaner assembly. This center
contains cartridge fuses and mini fuses.
CavityCartridge
Fuse Mini-Fuse Description
1 EMPTY
2 20 Amp Yellow AWD ECU
Feed — If
Equipped
3 10 Amp Red CHMSL Brake
Switch Feed
4 10 Amp Red Ignition Switch
Feed
5 20 Amp Yellow Trailer Tow
6 10 Amp Red IOD Sw/Pwr
Mir/Ocm Steer-
ing Cntrl Sdar/
Hfm
7 30 Amp Green IOD Sense1
8 30 Amp Green IOD Sense2
Integrated Power Module
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EMISSIONS CONTROL SYSTEM MAINTENANCE
The Scheduled Maintenance services listed inbold type
must be done at the times or mileages specified to ensure
the continued proper functioning of the emissions control
system. These and all other maintenance services in-
cluded in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions, such as dusty areas and very short trip
driving.
Inspection and service should also be done anytime a
malfunction is suspected.
NOTE: Maintenance, replacement or repair of the emis-
sions control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part that has been
certified pursuant to U.S. EPA or in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
There are three maintenance schedules that show re-
quired service for your vehicle.
First is “Maintenance Schedule B.” It is for vehicles that
are operated under the conditions that are listed below
and at the beginning of the schedule.
•Day and night temperatures are below 32°F(0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50 percent of your driving is at sustained
high speeds during hot weather, above 90°F(32°C).
•Trailer towing.†\b
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Change the automatic transmission fluid and filter every
60,000 miles (100 000 km) if the vehicle is usually
operated under one or more of the conditions marked
with an\b.
•Day and night temperatures are below 32°F (0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.†\b
•Taxi, police, or delivery service (commercial ser-
vice).†\b
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol) fuel.
NOTE:
•If ANY of these apply to you, then change your engine
oil every 3,000 miles (5 000 km) or three months,
whichever comes first, and follow ’Maintenance
Schedule B” in this section.
•If ANY of these apply to you, then flush and replace
the engine coolant every 102,000 miles (170 000 km) or
60 months, whichever comes first, and follow “Main-
tenance Schedule B” in this section.
If none of these apply to you, then change your engine oil
at every interval shown on “Maintenance Schedule A” in
this section.
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Miles39,000 42,000 45,000 48,000 51,000 54,000
(Kilometers) (65 000) (70 000) (75 000) (80 000) (85 000) (90 000)
Change engine oil and engine oil filter, if not
replaced at three months. XXXXX X
Rotate tires. XX X
Inspect the brake linings. X
Change the brake fluid. If vehicle is used for
trailer towing. X
Inspect the engine air cleaner filter, replace as
necessary.* X
Inspect the make-up air filter, replace as nec-
essary.* X
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