I own a 94 EX VTEC MT, and my ABS light has been on for some time now. The code is 1-2 which I belive is the pump motor. I live in Cincinnati Ohio and the temperature has not gone above 30F for almost three weeks.During this time my ABS light has been a no show and with all this snow and ice we have been having it has been nice having it work properly. Is this common that it will work when cold, or are the car gods lookin out for me knowing the weathers rough!

 

Code 1-2 indicates an open or short circuit in the power feed somewhere. Since ABS now works, an open seems likely since a short would have blown a fuse. If you're handy w/ a VOM, you should be able to trace the open when problem is expressed. A weak ABS pump motor relay would be a prime candidate.

good luck

 

what? like maybe a broken wire?

 

It could be a broken wire. More likely a relay problem like Texas said.

Here is the list of problems that could cause your error code from my shop manual.

• Open circuit or short to body ground between the R/C MIRROR (7.5 A)
fuse and under-hood ABS fuse/relay box
• Open circuit or short to body ground in the PMR circuit inside the underhood
ABS fuse/relay box
• Faulty pump motor relay
• Open circuit or short to body ground in the PMR circuit between the
under-hood ABS fuse/relay box and ABS control unit
• Open circuit between the battery and under-hood ABS fuse/relay box
• Blown ABS MOTOR (40 A) fuse
• Blown ABS UNIT (10 A) fuse
• Open circuit or short to body ground in the motor drive circuit and MCK
circuit inside the under-hood ABS fuse/relay box
• Open circuit or short to body ground in the MCK circuit between the
under-hood ABS fuse/relay box and ABS control unit
• Open circuit or short to body ground between the under-hood ABS
fuse/relay box and pump motor
• Faulty pump motor
• Open circuit between the pump motor and body ground or poor ground
• Faulty ABS control unit