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.
REPAIR as necessary. VERIFY the repair. Clear the PCM DTCs. REPEAT the self-test. | GO to Z13 . |
Z13 KOEO WATER SOAK TEST PROCEDURE FOR THE PCM SENSORS, EXCLUDING HIGH VOLTAGE CIRCUITS
WARNING: WHEN CARRYING OUT ANY TEST STEPS, ALWAYS BE AWARE OF HANDS, CLOTHING OR TOOLS NEAR COOLING FANS, BELTS OR HOT SURFACES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
• Ignition ON, engine OFF.
• Continue to monitor the PIDs and circuits as in the previous step.
• Proceed to the area of the suspect wiring or component concern.
• If the input is a switch type-component, turn it on manually.
• Monitor the PID or DMM values while lightly spraying a water mist on the component.
• Monitor while spraying the sensor harness wire from the component to the PCM.
• Look for abrupt changes in the values. Compare these actual values to the Typical Diagnostic Reference Values in Section 6 .
Are any values fluctuating in and out of range?
Yes | No |
|---|---|
REPAIR as necessary. VERIFY the repair. Clear the PCM DTCs. REPEAT the self-test. | GO to Z14 . |
Z14 KOER WATER SOAK TEST PROCEDURE FOR THE PCM SENSORS, EXCLUDING HIGH VOLTAGE CIRCUITS
WARNING: WHEN CARRYING OUT ANY TEST STEPS, ALWAYS BE AWARE OF HANDS, CLOTHING OR TOOLS NEAR COOLING FANS, BELTS OR HOT SURFACES.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
• Ignition ON, engine running.
• Continue to monitor the PIDs and circuits as in the previous step.
• Proceed to the area of the suspect wiring or component concern.
• If the input is a switch type-component, turn it on manually.
• Monitor the PID or DMM values while lightly spraying a water mist on the component.
• Monitor while spraying the sensor harness wire from the component to the PCM.
• Look for abrupt changes in the values. Compare these actual values to the Typical Diagnostic Reference Values in Section 6 .
Are any values fluctuating in and out of range?
Yes | No |
|---|---|
REPAIR as necessary. VERIFY the repair. Clear the PCM DTCs. REPEAT the self-test. | GO to Z15 . |
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.