Page 1 of 2
With Automatic Transmission
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
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APPLIES TO: This starter motor circuit wiring diagram applies to the following vehicles:
- 4.2L V6 Ford F150: 1999.
NOTE: This wiring diagrams includes the following component circuits:
- Ignition Switch.
- Digital Transmission Range (DTR) Sensor.
- Starter Relay.
- Starter Motor.
Starter Motor Test: You can find the starter motor test tutorial here:
WIRING DIAGRAMS: You can find a complete list of wiring diagrams and diagnostic tutorials for the 4.2L F-Series pickups in this index: