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.
Does the voltage change during the wiggle test?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | For DTC P00D2, GO to DW13 . For all others, INSTALL a new HO2S. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls. CLEAR the DTCs. REPEAT the self-test. |
DW13 CHECK FOR VPWR
Note: Diagnose the suspect sensor indicated by the DTC.
• Ignition OFF.
• For HO2S11,
• HO2S11 connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) HO2S11 Connector, Harness Side | ( - ) |
|---|---|
VPWR | Ground |
• For HO2S12,
• HO2S12 connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) HO2S12 Connector, Harness Side | ( - ) |
|---|---|
VPWR | Ground |
• For HO2S22,
• HO2S22 connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) HO2S22 Connector, Harness Side | ( - ) |
|---|---|
VPWR | Ground |
Is the voltage greater than 10.5 V?
Yes | No |
|---|---|
GO to DW14 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
DW14 CHECK THE HO2S HEATER CIRCUIT FOR AN OPEN
• Ignition OFF.
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.