Explorer 2WD V8-4.6L VIN 8 (2006)
Daytime Running Lamp: Testing and Inspection
Inspection and Verification
INSPECTION AND VERIFICATION
NOTE: When installing a new smart junction box (SJB), it must be configured for this feature, if originally equipped. Refer to Information Bus
(Module Communications Network).
1. Verify the customer concern by operating the daytime running lamps (DRL) following these steps:
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Place the ignition switch in the RUN position.
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Place the headlamp switch in the OFF position.
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Place the transmission in any gear other than PARK.
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If the DRL does not operate, make sure the SJB is configured for DRL before proceeding to the next step.
2. Verify the high beam operation.
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Place the headlamp switch in the HEADLAMPS ON position.
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Place the multifunction switch in the HIGH BEAM position.
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If the high beams do not operate correctly, refer to Headlamp for correct diagnosis.
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If the high beams operate correctly and the DRL operation is incorrect, proceed to the next step.
3. Check the SJB inputs.
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Monitor the ignition switch PIDs and the transmission gear status PIDs.
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If the ignition switch PIDs do not agree with the ignition switch position, refer to Ignition Switch to continue diagnosis of the ignition
switch.
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If the transmission gear status PIDs do not agree with the gear selector lever position, refer to Transmission Control Systems to continue
diagnosis of the transmission.
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If the PIDs indicate correct ignition and transmission gear status, install a new SJB. Refer to Body Control Systems (Multifunction
Electronic Control Module). Test the system for normal operation.
