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.
UO2SGREF | Ground |
UO2SPC | Ground |
UO2SPCT | Ground |
Are the resistances greater than 10K ohms?
Yes | No |
|---|---|
GO to DZ14 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
DZ14 CHECK THE UO2S, UO2SGREF, UO2SPC, AND UO2SPCT CIRCUITS FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Universal HO2S Connector, Harness Side | ( - ) |
|---|---|
UO2S | Ground |
UO2SGREF | Ground |
UO2SPC | Ground |
UO2SPCT | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to DZ15 . |
DZ15 CHECK THE UO2SGREF CIRCUIT FOR VOLTAGE
• Ignition OFF.
• PCM connector connected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Universal HO2S Connector, Harness Side | ( - ) |
|---|---|
UO2SGREF | Ground |
Universal HO2S UO2SGREF Circuit Voltage
Vehicle | Voltage |
|---|---|
F-Series Super Duty | 2 - 2.4 |
E-Series 5.4L, Edge 2.0L, Edge 2.7L, Escape/Kuga 1.6L, Escape/Kuga 2.0L, Expedition, Explorer 2.3L, Explorer GTDI 3.5L, F-150 2.7L, F-150 3.5L GTDI, Fiesta, | 2.4 - 2.6 |
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.