Before Pinpoint Tests

WARNING: This page is about a different car, the 2012 Ford F550 Super Duty and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Prior to starting pinpoint tests, check the PCM wiring harness for correct connections, bent or broken terminals, corrosion, loose wires, correct routing, correct seals and their condition. Check the PCM, sensors and actuators for damage. Refer to the INTRODUCTION - GASOLINE MODELS .

NOTE: If a concern still exists after electrical diagnosis has been carried out, refer to DIAGNOSIS BY SYMPTOM .

If DTCs appear while carrying out the On-Board Diagnostic (OBD) test, refer to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS for the appropriate procedure. Prior to starting pinpoint tests, refer to any TSBs for transmission concerns.