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.
VPWR | Ground |
Are the voltages greater than 10.5 V?
Yes | No |
|---|---|
GO to HX27 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
HX27 CHECK THE CANV CIRCUIT FOR AN OPEN
• Ignition OFF.
• PCM connector disconnected.
• Measure the resistance between:
( + ) Evaporative Emission (EVAP) Canister Vent Valve Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
CANV - Pin 2 | CANV |
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
GO to HX28 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
HX28 CHECK THE CANV CIRCUIT FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) Evaporative Emission (EVAP) Canister Vent Valve Connector, Harness Side | ( - ) |
|---|---|
CANV - Pin 2 | Ground |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to HX29 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
HX29 CHECK THE CANV CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Evaporative Emission (EVAP) Canister Vent Valve Connector, Harness Side | ( - ) |
|---|---|
CANV - Pin 2 | 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.