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.
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
GO to HU25 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
HU25 CHECK FOR A SHORT TO GROUND
• For DTCs P2004, P2006, or P2014,
• Measure the resistance between:
( + ) IMRC1 Sensor Connector, Harness Side | ( - ) |
|---|---|
IMRC1 - Pin 1 | Ground |
• For all others,
• Measure the resistance between:
( + ) IMRC2 Sensor Connector, Harness Side | ( - ) |
|---|---|
IMRC2 - Pin 1 | Ground |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to HU26 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
HU26 CHECK THE IMRC1 OR IMRC2 CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• For DTCs P2004, P2006, or P2014,
• Measure the voltage between:
( + ) IMRC1 Sensor Connector, Component Side | ( - ) |
|---|---|
VREF - Pin 2 | Ground |
• For all others,
• Measure the voltage between:
( + ) IMRC2 Sensor Connector, Component Side | ( - ) |
|---|---|
VREF - Pin 2 | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | INSTALL a new IMRC1 or IMRC2 sensor. REFER to the Workshop Manual Section 303- |
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.