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.
KD4 CHECK THE EEGR CIRCUITS FOR AN OPEN
• PCM connector disconnected.
• Measure the resistance between:
( + ) EEGR Assembly Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
EGRMC1 - Pin 1 | EGRMC1 |
EGRMC2 - Pin 3 | EGRMC2 |
EGRMC3 - Pin 4 | EGRMC3 |
EGRMC4 - Pin 6 | EGRMC4 |
Are the resistances less than 5 ohms?
Yes | No |
|---|---|
GO to KD5 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
KD5 CHECK THE EEGR CIRCUITS FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) EEGR Assembly Connector, Harness Side | ( - ) Vehicle Battery |
|---|---|
EGRMC1 - Pin 1 | Negative terminal |
EGRMC2 - Pin 3 | Negative terminal |
EGRMC3 - Pin 4 | Negative terminal |
EGRMC4 - Pin 6 | Negative terminal |
Are the resistances greater than 10K ohms?
Yes | No |
|---|---|
GO to KD6 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
KD6 CHECK FOR A SHORT BETWEEN EEGR CIRCUITS
Note: Refer to the PCM connector pin numbers in the beginning of this pinpoint test.
• Measure the resistance between:
( + ) EEGR Assembly Connector, Harness Side | ( - ) EEGR Assembly Connector, Harness Side |
|---|---|
EGRMC3 - Pin 4 | EGRMC1 - Pin 1 |
EGRMC3 - Pin 4 | EGRMC2 - Pin 3 |
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.