'93 ABS is driving me nuts!
Thread Starter
Junior Member
Joined: Jun 2003
Posts: 2
Likes: 0
From: Wa state
'93 ABS is driving me nuts!
Help!!!!! I am having fits with the ABS system on my 93 Accord. Code indicates ABS (accumulator) pump is problem. Have tried 3 different used pumps with no success. Honda tech finds the motor on the pump to be working but never builds pressure to the modulator (which, incidently, I have changed also). After approx. one minute the dash ABS light goes on. No ABS pulsing. Incredibly frustrating. Help!!!!!
Dr. Klaw
Joined: Apr 2003
Posts: 288
Likes: 0
From: Ft. Walton Beach, FL
Have you tried completely bleeding the ABS system?
HONDA ACCORD WITH TRAPPED AIRHonda Bulletin No. 93-038 advises that all 1994 HondaAccords and 1995 Accords with ABS; Sedans throughVIN 1HGCD5 … SAO55475, Coupes through VIN 1HGCD7 … SAO10699 and Wagons through 1HGCE1… SAOO3321 may exhibit an ABS light and the controlunit may store a Code 1 due to trapped air in the pumpinlet. This condition results from trapped air in the pumpinlet which causes the pump to run for 40 secondswithout building system pressure.Honda’s procedure for bleeding the air from the ABSsystem to re-establish pressure is as follows:1) Make certain the ABS reservoir is full.2) Connect a piece of clear tubing to the mainte-nance bleeder. Place opposite end of tubing intoa container.3) Relieve system pressure by loosening the mainte-nance bleeder. Close the bleeder when the fluidstops flowing in the tubing.4) Connect a piece of 3/8 inch O.D. hose to thepressure side of a hand-held vacuum pump.5) Remove the filler cap from the modulator reser-voir. Leave the plastic insert in the reservoir open-ing.6) Hold the vacuum pump hose against the reservoiropening insert. Pressurize the reservoir by pump-ing the vacuum pump until you feel resistance(1-3 strokes).7) Have an assistant start the engine. Allow the ABSpump to build pressure in the modulator.8) Have the assistant turn off the engine, and thenslowly open the maintenance bleeder. Close thebleeder when brake fluid stops running into thetubing.9) Repeat steps 7 and 8 five times to purge the airfrom the modulator.10) Clear any codes in the ABS control unit memoryby removing the ABS B2 fuse in the underhoodABS fuse box for three seconds.
I found this on a website and could possibly be why your not building pressure even though its for a 5g.
HONDA ACCORD WITH TRAPPED AIRHonda Bulletin No. 93-038 advises that all 1994 HondaAccords and 1995 Accords with ABS; Sedans throughVIN 1HGCD5 … SAO55475, Coupes through VIN 1HGCD7 … SAO10699 and Wagons through 1HGCE1… SAOO3321 may exhibit an ABS light and the controlunit may store a Code 1 due to trapped air in the pumpinlet. This condition results from trapped air in the pumpinlet which causes the pump to run for 40 secondswithout building system pressure.Honda’s procedure for bleeding the air from the ABSsystem to re-establish pressure is as follows:1) Make certain the ABS reservoir is full.2) Connect a piece of clear tubing to the mainte-nance bleeder. Place opposite end of tubing intoa container.3) Relieve system pressure by loosening the mainte-nance bleeder. Close the bleeder when the fluidstops flowing in the tubing.4) Connect a piece of 3/8 inch O.D. hose to thepressure side of a hand-held vacuum pump.5) Remove the filler cap from the modulator reser-voir. Leave the plastic insert in the reservoir open-ing.6) Hold the vacuum pump hose against the reservoiropening insert. Pressurize the reservoir by pump-ing the vacuum pump until you feel resistance(1-3 strokes).7) Have an assistant start the engine. Allow the ABSpump to build pressure in the modulator.8) Have the assistant turn off the engine, and thenslowly open the maintenance bleeder. Close thebleeder when brake fluid stops running into thetubing.9) Repeat steps 7 and 8 five times to purge the airfrom the modulator.10) Clear any codes in the ABS control unit memoryby removing the ABS B2 fuse in the underhoodABS fuse box for three seconds.
I found this on a website and could possibly be why your not building pressure even though its for a 5g.