For vehicles with the 2.3L EcoBoost (201kW/273PS), measure:

Ignition OFF. Disconnect: ACM C240A. Remove: BJB Starter Relay. Disconnect:

PCM C1551B for vehicles with the 2.3L EcoBoost (201kW/273PS). PCM C1381B for vehicles with the 3.7L Duratec (227kW/301PS). PCM C175B for vehicles with the 5.0L 32V Ti-VCT. PCM C175B for vehicles with the 5.2L.

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C240A-3		BJB Starter Relay Socket 1

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C240A-3		C1551B-62

Click to display connectors

For vehicles with the 3.7L Duratec (227kW/301PS), measure:

Positive Lead	Measurement / Action	Negative Lead
C240A-3		BJB Starter Relay Socket 1

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C240A-3		C1381B-1

Click to display connectors

For vehicles with the 5.0L 32V Ti-VCT, measure:

Positive Lead	Measurement / Action	Negative Lead
C240A-3		BJB Starter Relay Socket 1

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead

Source reference 4371

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.