No | For the LH or RH inner and middle rear stoplamp, GO to C10 If all stoplamps are inoperative, GO to Pinpoint Test A |
|---|
C3 CHECK FOR VOLTAGE TO THE HIGH MOUNTED STOPLAMP
Ignition OFF. Disconnect: High Mounted Stoplamp C475. Ignition ON. While applying the brake pedal, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C475-1 | Ground |
Is the voltage greater than 11 volts?
Yes | GO to C5 | |
|---|---|---|
No | GO to C4 | |
C4 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE HIGH MOUNTED STOPLAMP
Using a diagnostic scan tool, perform the BCM self-test. Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present). While applying the brake pedal, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C475-1 | Ground |
Is the voltage greater than 11 volts?
Yes | INSTALL a new high mounted stoplamp. REFER to: High Mounted Stoplamp - Coupe (417-01 Exterior Lighting, Removal and Installation). | |
|---|---|---|
No | GO to C6 | |
C5 CHECK THE HIGH MOUNTED STOPLAMP GROUND CIRCUIT FOR AN OPEN
While applying the brake pedal, measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C475-1 | C475-2 |
Is the voltage greater than 11 volts?
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.