Code C1255 when “hot”
01-09-2020, 09:26 AM
#1
Racer
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Code C1255 when “hot”
1999 convertible just started to set a code C1255 only after 15-20 miles of driving. No communication to EBCM.
Possible cold solder joint inside the module? Already checked/ cleaned the grounds.
Getting ready for the possible kiss of death and the hunt for a replacement ebcm.
Possible cold solder joint inside the module? Already checked/ cleaned the grounds.
Getting ready for the possible kiss of death and the hunt for a replacement ebcm.
01-09-2020, 10:47 AM
#2
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Anytime you get a No-Comm to any module you always check "power and grounds" first !!...which ground or grounds did you check and how did you accomplish this ??...then check power !!
best to check power and grounds AT the module with the connector plugged in.
best to check power and grounds AT the module with the connector plugged in.
Last edited by C5 Diag; 01-09-2020 at 10:49 AM.
01-10-2020, 03:11 PM
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Mr Bob, are these grounds the ones associated with the EBCM ??...are you using a wiring diagram specifically for your model year ??...you really can't start cleaning grounds and hope for a good diagnosis if they aren't associated with the EBCM !!...as far as power you normally have 2 power sources...power from the battery and through the ignition switch...on my '01 ABS fuse 52 is battery feed and ABSTRNS fuse 5 is hot in run...see if these 2 fuses are your fuses also and if they are not blown !!...now my EBCM grounds are G111(under the battery tray) and G113 which is on the left frame rail...maybe someone with a wiring schematic for a '99 can chime in !!