abs/asr problem
Thread Starter
Cruising
Joined: Oct 2012
Posts: 10
Likes: 0
abs/asr problem
Hi,
I have a 1993 with an abs/asr problem.
both lights are on. In the module 9 ebcm it's showing codes
H56 and H55,
I know from the code chart that code 55 is L R valve solenoid
malfunction and I have replaced the abs pump, but I cant find H56 in that module. Does anybody know?
Thanks,
Garys2214
I have a 1993 with an abs/asr problem.
both lights are on. In the module 9 ebcm it's showing codes
H56 and H55,
I know from the code chart that code 55 is L R valve solenoid
malfunction and I have replaced the abs pump, but I cant find H56 in that module. Does anybody know?
Thanks,
Garys2214
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
Hi,
I have a 1993 with an abs/asr problem.
both lights are on. In the module 9 ebcm it's showing codes
H56 and H55,
I know from the code chart that code 55 is L R valve solenoid
malfunction and I have replaced the abs pump, but I cant find H56 in that module. Does anybody know?
Thanks,
Garys2214
I have a 1993 with an abs/asr problem.
both lights are on. In the module 9 ebcm it's showing codes
H56 and H55,
I know from the code chart that code 55 is L R valve solenoid
malfunction and I have replaced the abs pump, but I cant find H56 in that module. Does anybody know?
Thanks,
Garys2214
Instructor
Joined: Dec 2011
Posts: 136
Likes: 3
From: pittsburgh pa.
92 fsm doesn't have a code 56. code 55 : if the ebcm senses a discrepancy such as an open or ground in the circuit, the valve solenoid relay will turn off, the service abs and service asr lights will come on, and code 55 will set. i had same problem but didn't check for codes, i had the right front speed sensor was left unplugged after changing the plugs.
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
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Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
You might try to clean and inspect both male and female connectors on the ABS pump and the brake computer. Might be a bad connection. Use alcohol and a good brush. Dry real well with air before y you re-connect. I would do this with the battery disconnected as a precaution not to do any damage.
I may not understand you question but you can't erase codes in module 9 by removing the battery cable.
I may not understand you question but you can't erase codes in module 9 by removing the battery cable.
Thread Starter
Cruising
Joined: Oct 2012
Posts: 10
Likes: 0
To answer Corvetero,
I think you are wanting to know how to
do this procedure,well here we go.
With the ignition off, connect a jumper from
DLC terminal A to G. turn Ignition on, press trip reset
button on drivers information center repeatedly
to display 9.0 in the trip monitor area of the
instrument cluster. Press trip ODO twice to change
the display to 9.7. Hold ENG/MET until --- appears
in the speedometer area of the cluster. Turn ignition
off, remove jumper from DLC. This should clear any
codes in module 9.
I think you are wanting to know how to
do this procedure,well here we go.
With the ignition off, connect a jumper from
DLC terminal A to G. turn Ignition on, press trip reset
button on drivers information center repeatedly
to display 9.0 in the trip monitor area of the
instrument cluster. Press trip ODO twice to change
the display to 9.7. Hold ENG/MET until --- appears
in the speedometer area of the cluster. Turn ignition
off, remove jumper from DLC. This should clear any
codes in module 9.
Pro
Joined: Dec 2011
Posts: 626
Likes: 15
From: Austin, TX
To answer Corvetero,
I think you are wanting to know how to
do this procedure,well here we go.
With the ignition off, connect a jumper from
DLC terminal A to G. turn Ignition on, press trip reset
button on drivers information center repeatedly
to display 9.0 in the trip monitor area of the
instrument cluster. Press trip ODO twice to change
the display to 9.7. Hold ENG/MET until --- appears
in the speedometer area of the cluster. Turn ignition
off, remove jumper from DLC. This should clear any
codes in module 9.
I think you are wanting to know how to
do this procedure,well here we go.
With the ignition off, connect a jumper from
DLC terminal A to G. turn Ignition on, press trip reset
button on drivers information center repeatedly
to display 9.0 in the trip monitor area of the
instrument cluster. Press trip ODO twice to change
the display to 9.7. Hold ENG/MET until --- appears
in the speedometer area of the cluster. Turn ignition
off, remove jumper from DLC. This should clear any
codes in module 9.
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
I have a 1993 with an abs/asr problem.
both lights are on. In the module 9 ebcm it's showing codes
H56 and H55,
I know from the code chart that code 55 is L R valve solenoid
malfunction and I have replaced the abs pump, but I cant find H56 in that module. Does anybody know?
both lights are on. In the module 9 ebcm it's showing codes
H56 and H55,
I know from the code chart that code 55 is L R valve solenoid
malfunction and I have replaced the abs pump, but I cant find H56 in that module. Does anybody know?
Follow the test description and flow chart for code 55 and see if you can find a problem. Check and test all that you can using all your knowledge. You might have to tap in to wires using pointed probes or pins to take measurements without unplugging connectors so system is up and running.
** You might also want to consider taking comparative readings on the code 51. The circuits are of course different but the comparative same measurements should be very close. You're looking for a catastrophic difference.
Last edited by pcolt94; Nov 12, 2012 at 05:37 PM.
