Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C523-1 | C523-4 |
Is a fluctuating AC voltage present?
Yes | INSTALL a new LHF door speaker. REFER to: Front Door Speaker LH (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation). |
|---|---|
No | GO to H2 |
H2 CHECK THE AUDIO CIRCUITS TO THE LHF (LEFT-HAND FRONT) DOOR SPEAKER FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect: ACM C240A. Disconnect: LHF A-pillar Tweeter Speaker C9063. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C523-1 | Ground | |
C523-4 | Ground |
Is any voltage present?
Yes | REPAIR the circuit in question. |
|---|---|
No | GO to H3 |
H3 CHECK THE AUDIO CIRCUITS TO THE LHF (LEFT-HAND FRONT) DOOR SPEAKER FOR A SHORT TO GROUND
Ignition OFF. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C523-1 | Ground | |
C523-4 | Ground |
Are the resistances greater than 10,000 ohms?
Yes | GO to H4 |
|---|---|
No | REPAIR the circuit in question. |
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.