Are the resistances greater than 10,000 ohms?
Yes | GO to N4 |
|---|---|
No | REPAIR the circuit in question. |
N4 CHECK THE AUDIO CIRCUITS TO THE LEFT PARCEL SHELF SPEAKER FOR AN OPEN
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C484-1 | C240A-21 | |
C484-4 | C240A-9 |
Are the resistances less than 3 ohms?
Yes | GO to N5 |
|---|---|
No | REPAIR the circuit in question. |
N5 CHECK THE AUDIO CIRCUITS TO THE LEFT PARCEL SHELF SPEAKER FOR A SHORT TOGETHER
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C484-1 | C484-4 |
Is the resistance greater than 10,000 ohms?
Yes | GO to N6 |
|---|---|
No | REPAIR the circuit in question. |
N6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
Ignition OFF. Disconnect and inspect all the ACM connectors. Repair:
Corrosion (clean module pins or install new connectors or terminals) Damaged or bent pins (install new terminals or pins) Pushed-out pins (install new pins as necessary)
Reconnect the ACM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for
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.