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.
( + ) MAP/CACT Sensor Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
CACT - Pin 2 | CACT |
SIGRTN - Pin 1 | SIGRTN |
• For the MAP/IAT2 sensor,
• MAP/IAT2 Sensor connector disconnected.
• Measure the resistance between:
( + ) MAP/IAT2 Sensor Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
IAT2 | IAT2 |
SIGRTN | SIGRTN |
• For the TCBP/CACT sensor,
• TCBP/CACT Sensor connector disconnected.
• Measure the resistance between:
( + ) TCBP/CACT Sensor Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
CACT | CACT |
SIGRTN | SIGRTN |
Are the resistances less than 5 ohms?
Yes | No |
|---|---|
GO to DN4 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
DN4 CHECK THE SIGNAL CIRCUIT FOR A SHORT TO GROUND
• For the IAT2 sensor,
• Measure the resistance between:
( + ) IAT2 Sensor Connector, Harness Side | ( - ) |
|---|---|
IAT2 - Pin 1 | Ground |
• For the MAP/CACT sensor,
• Measure the resistance between:
( + ) MAP/CACT Sensor Connector, Harness Side | ( - ) |
|---|---|
CACT - Pin 2 | Ground |
• For the MAP/IAT2 sensor,
• Measure the resistance between:
( + ) MAP/IAT2 Sensor Connector, Harness Side | ( - ) |
|---|
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.