2002 Explorer Steering Column System Diagnosis

2002 Ford Truck Explorer 4WD V6-4.0L VIN E

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Steering Column: Testing and Inspection Initial Inspection

Special Tool(s) Special Tool(s) Inspection and Verification 1. Verify the customer concern by operating the multifunction switch or ignition switch.

2. Visually inspect for obvious signs of mechanical and electrical damage. 3. If the concern remains after the inspection, connect the diagnostic tool to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle: ^ check that the program card is correctly installed. ^ check the connections to the vehicle. ^ check the ignition switch position. 4. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual. 5. Carry out the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with: ^ CKT930, CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network. ^ NO RESP/NOT EQUIP for GEM, refer to Powertrain Management. ^ SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the GEM. 6. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics. See: Trouble Code Diagnostic Charts 7. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. See: Diagnosis by Symptom

Test A PINPOINT TEST A: THE IGNITION SWITCH IS INOPERATIVE

2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test A1

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test A1-A2

Test B PINPOINT TEST B: NO POWER IN ACC

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test B1-B3

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test B3-B4

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test B5-B6

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test B6-B8

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test B8

Test C PINPOINT TEST C: NO POWER IN RUN

Test C1

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C2-C3

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C3-C4

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C5-C6

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C6

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C7

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C8-C9

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C10-C11

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C11

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C12-C13

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test C13

Test D PINPOINT TEST D: NO POWER IN START

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Test D1-D2

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2002 Ford Truck Explorer 4WD V6-4.0L VIN E

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Test D2

Component Tests Ignition Switch Mechanical Check Test the mechanical operation of the ignition switch by rotating the lock cylinder through all switch positions. The movement should not stick or bind and should return from the START position back to the ON position without assistance (spring return). If sticking or binding is encountered, check for the following: ^ burrs on the lock cylinder key ^ insufficient lube on the lock cylinder ^ bent or damaged the ignition rod ^ object rubbing against the ignition rod ^ excessive rubbing of the actuator against the transmission shift socket ^ binding lock cylinder ^ shroud rubbing the against lock cylinder ^ burrs or foreign material around the rack and pinion actuator in the lock cylinder housing ^ insufficient lube on the actuator (Do not apply lubricant to the inside of the ignition switch.) ^ binding ignition switch If the steering wheel lock is engaged with the wheels loaded against a curb, there will be high effort necessary to turn the key from LOCK. Turn the steering wheel to either side of the lock to unload the system.

Diagnosis by Symptom Symptom Chart

2002 Ford Truck Explorer 4WD V6-4.0L VIN E

Part 1 of 2

Part 2 of 2

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