2006 JEEP LIBERTY engine

Brake and Power Steering System Hoses
When servicing the vehicle for scheduled maintenance,
inspect surface of hoses for evidence of heat and me-
chanical damage. Hard and brittle rubber, cracking, tears,
cuts, abrasion, and excessive swelling suggest deteriora-
tion of the rubber. Particular attention should be made to
examining those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
NOTE: Often fluids such as oil, power steering fluid,
and brake fluid are used during assembly plant opera-
tions to ease the assembly of hoses to couplings. There-
fore, oil wetness at the hose-coupling area is not neces-
sarily an indication of leakage. Actual dripping of hot
fluid when systems are under pressure (during vehicle
operation) should be noted before hose is replaced based
on leakage. NOTE:
Inspection of brake hoses should be done when-
ever the brake system is serviced and every engine oil
change.
WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Brake Master Cylinder
The fluid level in the master cylinder should be checked
when performing under hood services, or immediately if
the “Brake Warning Light” shows system failure.
338 MAINTAINING YOUR VEHICLE

Be sure to clean the top of the master cylinder area before
removing the cap. If necessary, add fluid to bring the
fluid level up to the requirements described on the brake
fluid reservoir. With disc brakes, fluid level can be
expected to fall as the brake pads wear. However, low
fluid level may be caused by a leak and a checkup may be
needed. Use only manufacturer’s recommended brake fluid, refer
to Fluids, Lubricants, and Genuine Parts for correct fluid
type.
WARNING!
Use of a brake fluid that may have a lower initial
boiling point or unidentified as to specification, may
result in sudden brake failure during hard pro-
longed braking. You could have an accident.
WARNING!
Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
MAINTAINING YOUR VEHICLE 339
7

Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign matter. Do
not allow petroleum base fluid to contaminate the brake
fluid as seal damage will result.
Automatic Transmission
Selection of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission perfor-
mance. Use only manufacturer’s recommended transmis-
sion fluid, refer to Fluids, Lubricants, and Genuine Parts
for correct fluid type. It is important that the transmission
fluid be maintained at the prescribed level using the
recommended fluid.
CAUTION!
Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than the
manufacturer’s recommended fluid will result in
more frequent fluid and filter changes. Refer to
Fluids, Lubricants, and Genuine Parts for correct
fluid type.
Fluid Level Check – 3.7L Gasoline Engine (42RLE)
and 2.8L Diesel Engine (545RFE)
This fluid level should be checked when the engine is
fully warmed up and the fluid in the transmission is
heated to its normal operating temperature. Operation of
the transmission with an improper fluid level will greatly
reduce the life of the transmission and of the fluid.
340 MAINTAINING YOUR VEHICLE

To check the automatic transmission fluid level properly,
the following procedure must be used:
1. The vehicle must be on level ground.
2. The engine should be running at curb idle speed for a
minimum of 60 seconds.
3. Fully apply parking brake.
4. Apply the brakes and shift the transmission into P
(Park).
5. The fluid MUSTbe checked with the transmission in
P (Park) to be sure that the fluid level is accurate.
6. Wipe the dipstick clean and reinsert until seated.
Remove dipstick and note reading.
At normal operating temperature (approximately 180° F
(82° C), the fluid level is correct if it is in the HOT region (cross-hatched area) on the oil level indicator. The fluid
level indicator should be in the COLD region at 70° F (21°
C) fluid temperature.
If the fluid level is low, add sufficient fluid to bring to the
proper level. Refer to Fluids, Lubricants and Genuine
Parts for correct fluid type.
Fluid is added through the dipstick tube.
NOTE:
To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated.
Special Additives
The manufacturer recommends against the addition of
any additives to the transmission. Exception to this
policy is the use of special dyes to aid in detecting fluid
leaks.
MAINTAINING YOUR VEHICLE 341
7

Cavity Fuse Description
13 10 Amp Red Body Control Module/ CMTC/Cluster/Pass. Airbag
On,Off Indicator, Auto Day-
light Mirror/Light Bar
Switch (Renegade Only)
14 10 Amp Red PDC Fuel Pump/AC Clutch, Starter Relay/Engine
Controller/Transmission
Controller (Diesel Only)
15 Spare
16 20 Amp Yellow Power Outlet (Rear)
17 15 Amp Blue Rear Wiper
18 20 Amp Yellow Radio Choke & Relay
19 20 Amp Yellow Frt Fog Lights/Trailer Tow Stop and Turn Lights
20 Spare
21 10 Amp Red RadioCavity Fuse Description
22 20 Amp Yellow Power Sunroof Relay/ Antenna Module (Export
Only)
23 Spare
24 10 Amp Red PDC Blower Motor
25 10 Amp Red Heated Seat Switches/HVAC Control Head/Trailer Tow
Battery Charge
26 10 Amp Red Headlight High Beam Right
27 10 Amp Red Headlight High Beam Left
28 Spare
29 10 Amp Red Heated Mirrors/Rear Win- dow Defroster Indicator
30 15 Amp Blue Heated Seat Module
31 Spare
32 10 Amp Red Wiper Switch/Front and Rear Wipers
33 10 Amp Red SKIM Module/Data Link Connector
350 MAINTAINING YOUR VEHICLE

Cavity Fuse Description
34 15 Amp Blue Body Control Module/ Cluster/Interior Lights,
Hands Free Module/Radio/
CMTC/ITM Module & Siren
(Export Only)
35 Spare
36 10 Amp Red Airbag Control Module/ Occupation Classification
Module (Right Front Seat)
37 10 Amp Red Airbag Control Module
38 10 Amp Red ABS Controller/Shifter As- sembly
39 10 Amp Red Hazard Flasher (Turn Signals)/Backup Lamp
Switch (Manual Transmission
Only)/Transmission Range
Switch (Automatic Transmis-
sion Only)Underhood Fuses (Power Distribution Center)
Your vehicle is equipped with an electrical power distri-
bution center located in the engine compartment near the
battery. This power center houses plug-in “Cartridge”
fuses which replace in-line fusible links. The power
center also contains “Mini” fuses and plug-in full and
micro ISO relays. A label inside the latching cover of the
center identifies each component for ease of replacement,
if necessary. “Cartridge” fuses and relays can be obtained
from your authorized dealer.
MAINTAINING YOUR VEHICLE 351
7

Power Distribution Center (Gasoline Engines)
Cavity Fuse Description
F1 40 Amp Green Blower Motor
F2 40 Amp Green Radiator Fan
F3 50 Amp Red JB Power
F4 40 Amp Green ABS Pump
F5 20 Amp Yellow NGC Trans
F6 30 Amp Pink ASD
F7 50 Amp Red JB Power
F8 40 Amp Green Ign/Start
F9 50 Amp Red JB Power
F10 30 Amp Pink Trailer Tow
F11 Open
F12 30 Amp Pink Light Bar
F13 40 Amp Green Windows
F14 40 Amp Green Ignition Switch
F15 50 Amp Red JB Power
Power Distribution Center
352 MAINTAINING YOUR VEHICLE

Power Distribution Center (Diesel Engines)
Cavity Fuse Description
F1 40 Amp Green Blower Motor
F2 40 Amp Green Radiator Fan
F3 50 Amp Red JB Power
F4 40 Amp Green ABS Pump
F5 Open
F6 30 Amp Pink ASD
F7 50 Amp Red JB Power
F8 40 Amp Green Ign/Start
F9 50 Amp Red JB Power
F10 30 Amp Pink Trailer Tow
F11 20 Amp Yellow Fuel Heater
F12 30 Amp Pink Light Bar
F13 40 Amp Green Windows
F14 40 Amp Green Ignition Switch
F15 50 Amp Red JB Power
Cavity Fuse Description
F16 15 Amp Blue ASD Feed
F17 Open
F18 Open
F19 30 Amp Pink Rear Window Defogger (HBL)
F20 Open
F21 20 Amp Yellow A/C Clutch
F22 Open
F23 Open
F24 Open
F25 20 Amp Yellow ABS Valves
F26 25 Amp Natural Injectors
F27 Open
F28 15 Amp Blue Starter
R29 Half ISO Relay Fuel Heater
R30 Half ISO Relay Starter
354 MAINTAINING YOUR VEHICLE