Navigator 4WD V8-5.4L SOHC VIN L (1998)
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Check that the program card is properly installed.
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Check the connections to the vehicle.
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Check the ignition switch position.
If NGS Tester still does not communicate with the vehicle, go to Pinpoint Test M. See: Pinpoint Tests/M : No Module/Network Communication
Go to Pinpoint Test PC. See: System Precheck
