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.
KD: Electric Exhaust Gas Recirculation
KD: Introduction
(EEGR) System
KD1 CHECK FOR DTCS
Are DTCs P0400, P0403, or P1408 present?
Yes | No |
|---|---|
For DTC P1408, GO to KD9 . For all others, GO to KD2 . | For symptoms without DTCs, GO to KD2 . For all others, RETURN to Section 3 , Symptom Charts for further direction. |
KD2 DTCS P0400 AND P0403: CHECK THE EEGR CONNECTOR
Note: If the DTC is intermittent, wiggle the harness and connectors when taking measurements.
• Check the connection of the EEGR connector.
Are the connector contacts clean and correctly seated?
Yes | No |
|---|---|
GO to KD3 . | REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. |
KD3 CHECK THE VPWR CIRCUITS FOR AN OPEN
• Ignition ON, engine OFF.
• EEGR Assembly connector disconnected.
• Measure the voltage between:
( + ) EEGR Assembly Connector, Harness Side | ( - ) Vehicle Battery |
|---|---|
VPWR - Pin 2 | Negative terminal |
VPWR - Pin 5 | Negative terminal |
Are the voltages greater than 10.5 V?
Yes | No |
|---|---|
GO to KD4 . | REPAIR the open 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.