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.
DZ6 CROSSED SENSOR WIRES
• Check the vehicle repair history.
• Verify the connectors are connected to the correct engine bank.
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | Unable to duplicate or identify the concern at this time. GO to Pinpoint Test Z . |
DZ7 CHECK FOR VPWR
• Ignition OFF.
• Universal HO2S connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Universal HO2S Connector, Harness Side | ( - ) |
|---|---|
VPWR | Ground |
Is the voltage greater than 10.5 V?
Yes | No |
|---|---|
GO to DZ8 . | REPAIR the open circuit. CHECK the fuses. Clear the PCM DTCs. REPEAT the self-test. |
DZ8 CHECK THE UO2SHTR CIRCUIT FOR AN OPEN
• Ignition OFF.
• Universal HO2S connector disconnected.
• PCM connector disconnected.
• Measure the resistance between:
( + ) Universal HO2S Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
UO2SHTR | UO2SHTR |
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
GO to DZ9 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
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.