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June 9th 2025

P1661 / TOYOTA

EGR Circuit.

Notes:

June 9th 2025

P1661 / MOPAR

SENSOR GROUND REFERENCE CIRCUIT

Notes:

June 9th 2025

P1661 / JAGUAR

Output Circuit Check Signal Low

Notes:

June 9th 2025

P1661 / GENERIC

Output Circuit Check Signal Low

Notes:

June 9th 2025

P1661 / CHEVROLET

MIL Control Circuit

Notes:

June 9th 2025

P1661 / CADILLAC

MIL Control Circuit

Notes:

June 9th 2025

P1661 / BUICK

MIL Control Circuit

Notes:

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NOTE: Results from this database are the beginning of the diagnostic process, further investigation should be performed to confirm results before you begin repairs.