Diagnostic code - P00FF...how serious?
Thread Starter
Instructor
Joined: Aug 2019
Posts: 196
Likes: 183
Diagnostic code - P00FF...how serious?
I got a solid (not blinking) check engine light this morning...called onstar and they came back with Module ECM - Engine System and a diagnostic code of P00FF. The recommended action is Service within 7 days...the earliest appointment i could get with my dealer is exactly 7 days from now. I booked it, but I am wondering if anyone knows if this is serious enough to warrant me trying to get something sooner. Thanks very much!
"The Engine and Transmission System is not performing as expected. An issue has been detected in the Air Induction System which monitors and controls air intake to the engine. If the check engine light is flashing, a misfire condition has been detected. A misfire increases vehicle emissions and could damage the emission control system on the vehicle. Please reduce vehicle speed, avoid hard accelerations, avoid steep uphill grades, and reduce any cargo loads such as a trailer."
"The Engine and Transmission System is not performing as expected. An issue has been detected in the Air Induction System which monitors and controls air intake to the engine. If the check engine light is flashing, a misfire condition has been detected. A misfire increases vehicle emissions and could damage the emission control system on the vehicle. Please reduce vehicle speed, avoid hard accelerations, avoid steep uphill grades, and reduce any cargo loads such as a trailer."
Le Mans Master
Joined: Feb 2006
Posts: 5,979
Likes: 4,142
From: Kansas City, MO
P00FF is just an informational code. It means some other fault in the ECM, or another module entirely, asked the ECM to turn the light on. It'd be worth putting a generic OBD2 reader on it to see if there are other codes in the ECM. If the fault is somewhere else in the car, you won't be able to see it without specialized tools. The BCM looks like a likely candidate.
You may be force to wait for the dealer to find out specifics.
You may be force to wait for the dealer to find out specifics.
Last edited by Jeff V.; Jan 7, 2021 at 12:22 PM.
Thread Starter
Instructor
Joined: Aug 2019
Posts: 196
Likes: 183
P00FF is just an informational code. It means some other fault in the ECM, or another module entirely, asked the ECM to turn the light on. It'd be worth putting a generic OBD2 reader on it to see if there are other codes in the ECM. If the fault is somewhere else in the car, you won't be able to see it without specialized tools. The BCM looks like a likely candidate.
You may be force to wait for the dealer to find out specifics.
You may be force to wait for the dealer to find out specifics.
Instructor
Joined: Jan 2013
Posts: 115
Likes: 55
From: Newark, DE
P00FF is just an informational code. It means some other fault in the ECM, or another module entirely, asked the ECM to turn the light on. It'd be worth putting a generic OBD2 reader on it to see if there are other codes in the ECM. If the fault is somewhere else in the car, you won't be able to see it without specialized tools. The BCM looks like a likely candidate.
You may be force to wait for the dealer to find out specifics.
You may be force to wait for the dealer to find out specifics.
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Safety Car
Joined: Dec 1999
Posts: 4,718
Likes: 1,460
From: Virginia Beach, VA & Port Charlotte, FL
Google AI says... "P00FF is an informational diagnostic trouble code (DTC) that indicates the Body Control Module (BCM) has requested the check engine light to turn on. It does not point to a specific engine fault but rather a communication issue or a fault in the body control system. To find the root cause, you must scan the body control module itself, not just the engine."
