B4000 V6-4.0L SOHC (2005)
Information Bus: Testing and Inspection
Inspection and Verification
Inspection and Verification
1. Verify the customer concern
2. Visually inspect for obvious signs of electrical damage. See the chart
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool
menu. If the diagnostic tool does not communicate with the vehicle:
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check that the program card is correctly installed.
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check the connections to the vehicle.
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check the ignition switch position.
5. If the diagnostic tool still does not communicate with the vehicle, see the diagnostic tool operating manual.
Step 1
6. Go to data link diagnostics test. See DATA LINK DIAGNOSTICS TEST.
