MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Information and Entertainment Systems

Is the voltage within 0.2 volts of the recorded battery voltage?

415-00A General Information -Vehicles With AM-FM-CD-SYNC

2016 MustangReference 4,243 / 6,619HTML edition
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Positive Lead

Measurement / Action

Negative Lead

C2398-1

Ground

Is the voltage within 0.2 volts of the recorded battery voltage?

Yes

GO to AQ5

No

REPAIR the circuit for high resistance.

AQ5 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR CONTINUITY

Measure the voltage at the suspect module. For the ACM, measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C240A-1

C240A-13

For the APIM, measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C2383-1

C2383-37

For the DACMC, measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C240A-1

C240A-13

For the FCIM, measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C2402A-26

C2402A-1

For the GPSM, measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C2398-1

C2398-6

Is the suspect module voltage greater than 11 volts?

Yes • For the ACM, GO to AQ6

• For the APIM, GO to AQ7

Source reference 4243

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.