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APPLIES TO: This ignition system circuit wiring diagram applies to the following vehicles:
- 2.3L Ford Mustang: 1991.
NOTE: This wiring diagrams includes the following component circuits:
- Ignition Coil Pack (Primary).
- Ignition Coil Pack (Secondary).
- Ignition Control Module (ICM).
- Crankshaft Position (CKP) Sensor.
ICM And Coil Pack Tests: The following tutorial explains how to test the ignition coil packs and the ignition control module (ICM):
- How To Test The Coil Packs, Ignition Module And CKP Sensor (1989-1994 2.3L Ranger, Mustang, B2300) (at: easyautodiagnostics.com).
Wiring Diagrams: You can find all of the available 2.3L Mustang wiring diagrams here:
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