Jeep Cherokee (XJ): Cleaning and inspection

STARTING SYSTEM

The following components of the starting system should be carefully inspected whenever any starting system problem is encountered.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

  •  Battery Visually inspect the battery for indications of physical damage and loose or corroded cable connections. Determine the state-of-charge and cranking capacity of the battery. Charge or replace the battery, if required. Refer to Battery in the index of this service manual for the location of the proper battery cleaning and inspection procedures.
  •  Ignition Switch Visually inspect the ignition switch for indications of physical damage and loose or corroded wire harness connections. Clean corroded connections as required. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures. Refer to Ignition Switch and Key Lock Cylinder in the index of this service manual for the location of the proper ignition switch service procedures.
  •  Clutch Pedal Position Switch If the vehicle is equipped with a manual transmission, visually inspect the clutch pedal position switch for indications of physical damage and loose or corroded wire harness connections. Clean corroded connections as required. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures. Refer to Clutch Hydraulic Linkage in the index of this service manual for the location of the proper clutch pedal position switch service procedures.
  •  Park/Neutral Position Switch If the vehicle is equipped with an automatic transmission, visually inspect the park/neutral position switch for indications of physical damage and loose or corroded wire harness connections. Clean corroded connections as required. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures. Refer to Park/Neutral Position Switch in the index of this service manual for the location of the proper park/neutral position switch service procedures.
  •  Starter Relay Visually inspect the starter relay for indications of physical damage and loose or corroded wire harness connections. Clean corroded connections as required. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures. Refer to Starter Relay in the index of this service manual for the location of the proper starter relay service procedures.
  •  Starter Motor Visually inspect the starter motor for indications of physical damage and loose or corroded wire harness connections. Clean corroded connections as required. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures. If the problem being diagnosed involves improper starter engagement, disengagement or noise complaints the starter motor should be removed. With the starter motor removed, inspect the starter pinion and ring gears for damaged or missing teeth. Replace faulty components as required. Refer to Starter Motor in the index of this service manual for the location of the proper starter motor removal and installation procedures.
  •  Starter Solenoid Visually inspect the starter solenoid for indications of physical damage and loose or corroded wire harness connections. Clean corroded connections as required. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures. Refer to Starter Motor in the index of this service manual for the location of the proper starter solenoid service procedures.
  •  Wiring Visually inspect the starting system wire harnesses for indications of physical damage. Repair or replace any faulty wiring, as required. Refer to Starting System in the index of this service manual for the location of complete starting system wiring diagrams. Refer to Wiring Diagrams in the index of this service manual for the location of the proper wiring repair or connector and terminal service procedures.

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    Starter motor REMOVAL 2.5L ENGINE (1) Disconnect and isolate the battery negative cable. (2) Raise and support the vehicle. (3) While supporting the starter motor with one hand, use the othe ...

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