1994 JEEP WRANGLER belt

IDLE AIR CONTROL MOTOR TEST
Idle Air Control (IAC) Motor operation can be
tested using special exerciser tool number 7558 (Fig.
42).
CAUTION: Proper safety precautions must be taken
when testing the idle air control motor:
²Set the parking brake and block the drive wheels
²Route all tester cables away from the cooling fans,
drive belt, pulleys and exhaust components
²Provide proper ventilation while operating the en-
gine
²Always return the engine idle speed to normal be-
fore disconnecting the exerciser tool
(1) With the ignition OFF, disconnect the IAC mo-
tor wire connector at throttle body (Fig. 42).
(2) Plug the exerciser tool number 7558 harness
connector into the IAC motor.
(3) Connect the red clip of exerciser tool 7558 to
battery positive terminal. Connect the black clip tonegative battery terminal. The red light on the exer-
ciser tool will flash when the tool is properly con-
nected.
(4) Start engine.
When the switch on the tool is in the HIGH or
LOW position, the light on the tool will flash. This
indicates that voltage pulses are being sent to the
IAC stepper motor.
(5) Move the switch to the HIGH position. The en-
gine speed should increase. Move the switch to the
LOW position. The engine speed should decrease.
(a) If the engine speed changes while using the
exerciser tool, the IAC motor is functioning prop-
erly. Disconnect the exerciser tool and connect the
IAC motor wire connector to the stepper motor.
(b) If the engine speed does not change, turn the
ignition OFF and proceed to step (6). Do not discon-
nect exerciser tool from the IAC motor.
(6) Remove the IAC motor from the throttle body.
Do not remove IAC motor housing from throttle
body.
CAUTION: When checking IAC motor operation with
the motor removed from the throttle body, do not
extend the pintle (Fig. 43) more than 6.35 mm (.250
in). If the pintle is extended more than this amount,
it may separate from the IAC motor. The IAC motor
must be replaced if the pintle separates from the
motor.
(7) With the ignition OFF, cycle the exerciser tool
switch between the HIGH and LOW positions. Ob-
serve the pintle. The pintle should move in-and-out
of the motor.
(a) If the pintle does not move, replace the idle
air control motor. Start the engine and test the re-
placement motor operation as described in step (5).
(b) If the pintle operates properly, check the idle
air control motor bore in the throttle body bore for
blockage and clean as necessary. Reinstall the idle
air control motor and retest. If blockage is not
Fig. 41 Oxygen SensorÐTypical
Fig. 42 IAC Motor TestingÐTypical
Fig. 43 Idle Air Control (IAC) Motor Pintle
14 - 46 FUEL SYSTEMJ

Fig. 45 Manual Regulator InstallationÐLower Rivets
and Glass Retaining Screw
Fig. 46 Power Regulator InstallationÐUpper Rivets
Fig. 47 Power Regulator InstallationÐLower Rivets
Fig. 48 Front Door Beltline Moulding and Weatherstrip
Seals
JBODY COMPONENTSÐXJ VEHICLES 23 - 49

Fig. 50 Front Door Belt Outer Weatherstrip Seal
Fig. 51 Front Door Belt Outer Weatherstrip Seal
Fig. 52 Vent Window Glass Frame Screws
23 - 50 BODY COMPONENTSÐXJ VEHICLESJ

Fig. 65 Belt Weatherstrip Seals
Fig. 66 Fixed Glass Support Bracket Bolts
Fig. 68 Key Lock Cylinder and Door Latch
23 - 54 BODY COMPONENTSÐXJ VEHICLESJ

Fig. 106 Front Door Belt Inner Weatherstrip Seal
Fig. 107 Rear Door Belt Outer and Inner
Weatherstrip Seal
Fig. 108 Door Opening Weatherstrip Seals
23 - 64 BODY COMPONENTSÐXJ VEHICLESJ

Fig. 121 Front Shoulder Belt Buckles
Fig. 122 Front Shoulder BeltÐ2-Door Vehicles
JBODY COMPONENTSÐXJ VEHICLES 23 - 119

Fig. 124 Shoulder Belt SetÐ2-Door Vehicles
Fig. 125 Shoulder Belt SetÐ4-Door Vehicles
23 - 120 BODY COMPONENTSÐXJ VEHICLESJ

Fig. 129 Assist HandlesÐXJ Vehicles
Fig. 126 Rear Seat Shoulder/Lap Belts and
BucklesÐXJ Vehicles
Fig. 127 Shoulder Belt Retractor Support Removal/
Installation
JBODY COMPONENTSÐXJ VEHICLES 23 - 121