Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
( + ) PCM Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
VREF | VPWR |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to C7 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
C7 CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• For ETCREF concerns.
• Measure the voltage between:
( + ) PCM Connector, Harness Side | ( - ) |
|---|---|
ETCREF | Ground |
• For APPVREF concerns.
• Measure the voltage between:
( + ) PCM Connector, Harness Side | ( - ) |
|---|---|
APPVREF1 | Ground |
APPVREF2 | Ground |
• For VREF concerns.
• Measure the voltage between:
( + ) PCM Connector, Harness Side | ( - ) |
|---|---|
VREF | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to C32 . |
C8 CHECK THE REFERENCE VOLTAGE WITH THE ETBTPS CONNECTED
Note: If this sensor was used for the measurement in C3, GO to C9 .
• Ignition OFF.
• ETBTPS connector connected.
• Ignition ON, engine OFF.
• Measure the voltage between:
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.