ELECTRICAL COMPONENT LOCATOR 1989-90 ELECTRICAL COMPONENT LOCATIONS Jeep - Electrical Components
Jeep Cherokee 1990 - BUZZERS, RELAYS & TIMERS
Jeep Cherokee 1990 BUZZERS, RELAYS & TIMERS LOCATION
Component Location A/C Clutch Relay On relay block, on right wheelwell. See Fig. 1 . A/C-Heater Blower Relay Under right side of dash, on evaporator housing. B+ Latch Relay On relay block, on right wheelwell. See Fig. 1 . Cooling Fan Relay (6-Cyl.) On left fender panel (front of washer bottle). Door Lock/Unlock Relays Under dash, behind right kick panel. Foglight Relay Behind left headlight, on wheelwell. Fuel Pump Relay On relay block, on right wheelwell. See Fig. 1 . Hazard Flasher Relay On bottom of fuse block. See Fig. 2 . Horn Relay On bracket, above left kick panel. See Fig. 3 . Idle-Up RPM Relay (1990) In right side of engine bay, near battery. Manifold Heater Relay (4.2L) (1990) In right side of engine bay, near battery. Oxygen Sensor Heater Relay On relay block, on right wheelwell. See Fig. 1 . Power Antenna Relay Under right side of dash, behind glove box. Rear Window Defogger Relay Under instrument panel, to right of steering column. See Fig. 3 . Rear Wiper Relay In tailgate, next to wiper motor. Starter Relay In left side of engine bay, near battery. See Fig. 1 . Trailer Towing Relays Brake Lights Behind left rear quarter trim panel. Left & Right Turn Signals Behind left rear quarter trim panel. Turn Signal Flasher Relay At top left of fuse block. See Fig. 2 .
Jeep Cherokee 1990 - CIRCUIT PROTECTION DEVICES
Jeep Cherokee 1990 CIRCUIT PROTECTION DEVICES LOCATION
Component Location Circuit Breakers In fuse block. Cruise Control In-Line Fuse In harness, next to cruise control module. ECAT In-Line Fuse In harness, next to ECAT module. Fuse Block Under left side of dash. See Fig. 2 . Fusible Links At starter relay.
Jeep Cherokee 1990 - CONTROL UNITS
Jeep Cherokee 1990 CONTROL UNITS LOCATION
Component Location Anti-Lock Brake (ABS) Module Behind rear seat. Chime Module On top of fuse block. See Fig. 2 . Cruise Control Module Under dash, above brake pedal. Daytime Running Lights Module (1990) In engine bay, on top of left wheelwell. ECAT Module Behind right side of dash. Electronic Control Unit (ECU) Behind left side of dash, above gas pedal. Headlight Delay Module Under left side of dash, above intermittent wiper module. See Fig. 3 . Ignition Control Module On right wheelwell, in front of relay block. See Fig. 1 . Intermittent Wiper Module Under left side of dash, to right of fuse block. See Fig. 3 . Keyless Entry Module Between sun visors. Maintenance Reminder Module Under dash, to right of steering column. See Fig. 3 . Transmission Control Unit (TCU) Under dash on passenger's side.
Jeep Cherokee 1990 - SENDING UNITS & SENSORS
Jeep Cherokee 1990 SENDING UNITS & SENSORS LOCATION
Component Location ABS Accumulator Sensor On master cylinder, to right of reservoir. ABS Wheel Sensors At each wheel. Brake Fluid Level Sensor In master cylinder reservoir. Brake Pad Wear Sensors In both inner front brake pads. Coolant Temperature Sending Unit 4-Cyl. At rear of cylinder head. See Fig. 4 . 6-Cyl. At top front of cylinder head. Coolant Temperature Sensor 4-Cyl. In left rear side of intake manifold. See Fig. 5 . 6-Cyl. Right side of engine block, near motor mount. ECAT/ECU Throttle Position Sensor (TPS) On throttle body. See Fig. 5 . Engine Speed Sensor On left side of bellhousing. See Fig. 6 . Fuel Gauge Sending Unit In fuel tank. Knock Sensor On lower front of engine block. Manifold Absolute Pressure (MAP) Sensor In engine bay, on right side of firewall. Manifold Air Temp. (MAT) Sensor At rear of intake manifold. See Fig. 5 . Oil Pressure Sending Unit On right side of engine block. Oxygen Sensor In exhaust manifold, near exhaust pipe flange. See Fig. 5 . Throttle Position Sensor (1990) On throttle body. Vehicle Speed Sensor At instrument cluster, in speedometer cable.
Jeep Cherokee 1990 - MOTORS
Jeep Cherokee 1990 MOTORS LOCATION
Component Location A/C-Heater Blower Motor In evaporator housing. Anti-Lock Brake (ABS) Pump Motor At rear corner of engine bay. Idle Speed Actuator (ISA) Motor On right side of throttle body. Power Door Lock Motor Behind trim panel, in each door. Power Window Motor Behind trim panel, in center of each door. Rear Washer Motor In left front corner of engine bay. Rear Wiper Motor Behind trim panel, in upper center of tailgate. Windshield Washer Motor On windshield washer reservoir. Windshield Wiper Motor Behind left side of firewall.
Jeep Cherokee 1990 - SOLENOIDS & SOLENOID VALVES
Jeep Cherokee 1990 SOLENOIDS & SOLENOID VALVES LOCATION
Component Location ECAT Solenoids On valve body, in transmission. EGR/EVAP Solenoid On right side of engine bay, near battery.
Jeep Cherokee 1990 - SWITCHES
Jeep Cherokee 1990 SWITCHES LOCATION
Component Location A/C Low Pressure Switch On receiver-drier. Back-Up/Neutral Switch On left side of transmission case. Brake Light Switch On brake pedal bracket. Brake Warning Switch On brake pressure differential valve, below master cylinder. Closed Throttle (Idle) Switch An integral part of ISA motor. Command Track Switch On left side of transmission. Cooling Fan Switch (6-Cyl.) In left side of radiator. Cruise Control Cancel Switch On brake pedal bracket, above brake light switch. Parking Brake Switch Under center console, at base of parking brake lever. Power Steering Switch (6-Cyl.) On left side of power steering pump, in pressure hose. Seat Belt Switch In driver's seat belt. Wide Open Throttle (WOT) Switch On bracket, with ISA motor.
Jeep Cherokee 1990 - MISCELLANEOUS
Jeep Cherokee 1990 MISCELLANEOUS LOCATION
Component Location A/C Clutch Diode On A/C compressor. A/C-Heater Blower Motor Resistor Under right side of dash, on evaporator housing. A/C Thermostat Under right side of dash, on evaporator housing. Cooling Fan Diode Under left hand hood latch. Diagnostic Connectors (D1 & D2) On right wheelwell, behind relay block. Emission Timer (1990) Under right side of dash, left of blower motor. Fuel Pump Ballast Resistor (6-Cyl.) At front of left fender panel.
Jeep Cherokee 1990 - COMPONENT LOCATION GRAPHICS
NOTE:
Fig.res may show multiple component locations. - appropriate table for proper figure references.
Fig. 1: Jeep Cherokee 1990 - Component Locations - Component Locations (1 Of 6)
Fig. 2: Jeep Cherokee 1990 - Component Locations - Component Locations (2 Of 6)
Fig. 3: Jeep Cherokee 1990 - Component Locations - Component Locations (3 Of 6)
Fig. 4: Jeep Cherokee 1990 - Component Locations - Component Locations (4 Of 6)
Fig. 5: Jeep Cherokee 1990 - Component Locations - Component Locations (5 Of 6)
Fig. 6: Jeep Cherokee 1990 - Component Locations - Component Locations (6 Of 6)