Error messages that clear themselves
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Cross-Country
Joined: Mar 2024
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Error messages that clear themselves
I parked my 2024 F250 Lariat 7.3 today and received a message on the dash "Check Brake System" and I clicked "OK" and the word BRAKE remained illuminated. Turned the truck off and returned to it later.
DTS codes in FORSCAN dated today were ABS: C101A - Vacuum Pressure Sensor + PCM: P0557 - Brake Booster Pressure Sensor Circuit Low
Had another ABS Module DTS from Oct 11 U0146 - Lost Communication with Serial Data Gateway Module "A"
The illuminated BRAKE is no longer displayed, so I'm wondering how often do you all see messages like this that come and go. Are there temporary glitches or should ever message be addressed by a dealership?
DTS codes in FORSCAN dated today were ABS: C101A - Vacuum Pressure Sensor + PCM: P0557 - Brake Booster Pressure Sensor Circuit Low
Had another ABS Module DTS from Oct 11 U0146 - Lost Communication with Serial Data Gateway Module "A"
The illuminated BRAKE is no longer displayed, so I'm wondering how often do you all see messages like this that come and go. Are there temporary glitches or should ever message be addressed by a dealership?
Logistics Pro
Joined: Jan 2010
Posts: 4,093
Likes: 1,629
Temporary codes come and go, IIRC they can't really be 'reset.'
Stored codes are codes that may have happened, but either not enough to trigger a CEL or set a CEL but then the condition disappeared so the CEL turned off.
'Permanent' are ones that set a CEL and the condition is still happening.
That said, these are brake codes and can be different. Also you have a 'lost communication' code, which would tell me you've got either bad wiring or a loose plug and should investigate that first.
To answer your question, though, yes I've had lights get triggered then go out after a cycle or two, and then when I checked for them later there were 'no codes found.' Like your home computer, vehicle computers sometimes have errors and just need to reset and they're fine. And with multiple computers interacting with each other, the chances of those errors increases.
Stored codes are codes that may have happened, but either not enough to trigger a CEL or set a CEL but then the condition disappeared so the CEL turned off.
'Permanent' are ones that set a CEL and the condition is still happening.
That said, these are brake codes and can be different. Also you have a 'lost communication' code, which would tell me you've got either bad wiring or a loose plug and should investigate that first.
To answer your question, though, yes I've had lights get triggered then go out after a cycle or two, and then when I checked for them later there were 'no codes found.' Like your home computer, vehicle computers sometimes have errors and just need to reset and they're fine. And with multiple computers interacting with each other, the chances of those errors increases.
Hotshot
Joined: Jul 2013
Posts: 14,254
Likes: 2,180
my iphone version of forscan does not see perm and pending codes very well.
but...odblink software can see them all.
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