Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004EXPLORER 2WD V6-4.0L VIN EREPAIR AND DIAGNOSISSTEERING AND SUSPENSIONSTEERINGSTEERING COLUMNTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEW
2004 Ford Explorer 2WD V6-4.0L VIN E
Initial Inspection and Diagnostic Overview
2004 Ford Explorer 2WD V6-4.0L VIN ESECTION Initial Inspection and Diagnostic Overview
Inspection and Verification
1. Verify the customer concern by operating the ignition switch.
2. Visually inspect for obvious signs of mechanical and electrical damage.
NOTE: For multifunction switch concerns, refer to one of the following sections:
- Exterior Lighting.
- Wipers and Washers.
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 diagnostic tool data link test. If the diagnostic tool responds with:
- SCP or UBP circuit fault; all electronic control units no response/not equipped, refer to Module Communications Network.
- No response/not equipped for the instrument cluster, go to Instrument Panel, Gages and Warning Indicators.
- System passed, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs, and carry out the self-test diagnostics for the instrument cluster.
6. If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index to continue diagnostics. [1][2]Diagnostic Trouble Code Descriptions
7. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
Symptom Related Diagnostic Procedures
1. Verify the customer concern by operating the ignition switch.
2. Visually inspect for obvious signs of mechanical and electrical damage.
NOTE: For multifunction switch concerns, refer to one of the following sections:
- Exterior Lighting.
- Wipers and Washers.
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 diagnostic tool data link test. If the diagnostic tool responds with:
- SCP or UBP circuit fault; all electronic control units no response/not equipped, refer to Module Communications Network.
- No response/not equipped for the instrument cluster, go to Instrument Panel, Gages and Warning Indicators.
- System passed, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs, and carry out the self-test diagnostics for the instrument cluster.
6. If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index to continue diagnostics. [1][2]Diagnostic Trouble Code Descriptions
7. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
Symptom Related Diagnostic Procedures
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.