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.
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
GO to AB17 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
AB17 CHECK THE CIRCUITS
• PCM connector disconnected.
• Measure the resistance between:
( + ) Cold Start Relay Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
CSRC | CSRC |
CSM | CSM |
• Measure the resistance between:
( + ) Cold Start Valve Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
CSV | CSV |
Are the resistances less than 5 ohms?
Yes | No |
|---|---|
GO to AB18 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
AB18 CHECK FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) Cold Start Relay Connector, Harness Side | ( - ) |
|---|---|
CSRC | Ground |
• Measure the resistance between:
( + ) Cold Start Valve Connector, Harness Side | ( - ) |
|---|---|
CSV | Ground |
Are the resistances greater than 10K ohms?
Yes | No |
|---|---|
GO to AB19 . | REPAIR the short 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.