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Pinpoint Tests

NOTE: Prior to entering pinpoint tests, check the EEC-V system wiring harness for correct connections, bent or broken pins, corrosion, loose wires, correct routing, correct seals and their conditions. Check the PCM, sensors, and actuators for damage; refer to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE .
NOTE: Prior to entering pinpoint tests, refer to any TSBs for F4E transmission concerns.
NOTE: All non-transmission DTCs should be addressed first. They could affect the electrical operation of the transmission.

Use the following pinpoint tests to diagnose transmission electrical concerns.

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