PINPOINT TEST R : THE RIGHT PARCEL SHELF SPEAKER IS INOPERATIVE (COUPE)
R1 CHECK THE AUDIO SIGNAL TO THE RIGHT PARCEL SHELF SPEAKER
Ignition OFF. Disconnect: Right Parcel Shelf Speaker C485. Operate the audio system in AM/ FM mode. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C485-1 | C485-4 |
Is a fluctuating AC voltage present?
Yes | INSTALL a new right parcel shelf speaker. REFER to: Parcel Shelf Speaker (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Removal and Installation). |
|---|---|
No | GO to R2 |
R2 CHECK THE AUDIO CIRCUITS TO THE RIGHT PARCEL SHELF SPEAKER FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect: Audio DSP Module C2385B. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C485-1 | Ground | |
C485-4 | Ground |
Is any voltage present?
Yes | REPAIR the circuit in question. |
|---|---|
No | GO to R3 |
R3 CHECK THE AUDIO CIRCUITS TO THE RIGHT PARCEL SHELF SPEAKER FOR A SHORT TO GROUND
Ignition OFF. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C485-1 | Ground |
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.