ABS Light Stays On - How to Fix?
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From: Eastern, ma, US
ABS Light Stays On - How to Fix?
97 ITR. My ABS light was throwing code 15 (right rear sensor). So I took off the right rear brake and poked around. The sensor didn't look damaged or have an excessive gap. I put it back together and now I get a constant ABS light. No DTC (codes). And, I can't erase this constant ABS light.
So helms says
1) check the 7.5 abs fuse. It's fine
2) Check for open in IG2 circuit. I'm not very handy with a multimeter. But the I stripped a bit of plastic off the No 11 wire on the 22P connector. Setting the multimeter to DC, I touch the red probe to the exposed No 11 wire, and the black probe to the body. The needle moves... Don't know what the meter should read... I could use some help with this step.
Assuming this step is ok, I go to step 3.
3) Check for short to body ground. The ABS light stays off, and the solution is "Check for loose ABS control unit connectors. If necessary, substitute a known good ABS control unit and recheck".
So, any assistance with step 2 would be appreciated (what values to set the multimeter tester at...2.5, 10, 50, 250? And what should I be looking for as a meter reading for "battery voltage"? 12v?
Or should I just try to find a known good ABS control unit and replace it?
So helms says
1) check the 7.5 abs fuse. It's fine
2) Check for open in IG2 circuit. I'm not very handy with a multimeter. But the I stripped a bit of plastic off the No 11 wire on the 22P connector. Setting the multimeter to DC, I touch the red probe to the exposed No 11 wire, and the black probe to the body. The needle moves... Don't know what the meter should read... I could use some help with this step.
Assuming this step is ok, I go to step 3.
3) Check for short to body ground. The ABS light stays off, and the solution is "Check for loose ABS control unit connectors. If necessary, substitute a known good ABS control unit and recheck".
So, any assistance with step 2 would be appreciated (what values to set the multimeter tester at...2.5, 10, 50, 250? And what should I be looking for as a meter reading for "battery voltage"? 12v?
Or should I just try to find a known good ABS control unit and replace it?
Last edited by pcorad; Jun 20, 2009 at 11:18 AM.
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Joined: May 2002
Posts: 10,082
Likes: 2
Re: ABS Light Stays On - How to Fix?
97 ITR. My ABS light was throwing code 15 (right rear sensor). So I took off the right rear brake and poked around. The sensor didn't look damaged or have an excessive gap. I put it back together and now I get a constant ABS light. No DTC (codes). And, I can't erase this constant ABS light.
So helms says
1) check the 7.5 abs fuse. It's fine
2) Check for open in IG2 circuit. I'm not very handy with a multimeter. But the I stripped a bit of plastic off the No 11 wire on the 22P connector. Setting the multimeter to DC, I touch the red probe to the exposed No 11 wire, and the black probe to the body. The needle moves... Don't know what the meter should read... I could use some help with this step.
Assuming this step is ok, I go to step 3.
3) Check for short to body ground. The ABS light stays off, and the solution is "Check for loose ABS control unit connectors. If necessary, substitute a known good ABS control unit and recheck".
So, any assistance with step 2 would be appreciated (what values to set the multimeter tester at...2.5, 10, 50, 250? And what should I be looking for as a meter reading for "battery voltage"? 12v?
Or should I just try to find a known good ABS control unit and replace it?
So helms says
1) check the 7.5 abs fuse. It's fine
2) Check for open in IG2 circuit. I'm not very handy with a multimeter. But the I stripped a bit of plastic off the No 11 wire on the 22P connector. Setting the multimeter to DC, I touch the red probe to the exposed No 11 wire, and the black probe to the body. The needle moves... Don't know what the meter should read... I could use some help with this step.
Assuming this step is ok, I go to step 3.
3) Check for short to body ground. The ABS light stays off, and the solution is "Check for loose ABS control unit connectors. If necessary, substitute a known good ABS control unit and recheck".
So, any assistance with step 2 would be appreciated (what values to set the multimeter tester at...2.5, 10, 50, 250? And what should I be looking for as a meter reading for "battery voltage"? 12v?
Or should I just try to find a known good ABS control unit and replace it?
maybe check the e brake cable. or see if you have any brake pads left
Thread Starter
Honda-Tech Member
Joined: Feb 2001
Posts: 693
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From: Eastern, ma, US
Re: ABS Light Stays On - How to Fix?
Plenty of brake fluid. The ebrake seems to work fine.
How does the ebrake cause ABS lights to come on?
Anyone have a known good ABS control unit lying around?
How does the ebrake cause ABS lights to come on?
Anyone have a known good ABS control unit lying around?
Thread Starter
Honda-Tech Member
Joined: Feb 2001
Posts: 693
Likes: 0
From: Eastern, ma, US
Re: ABS Light Stays On - How to Fix?
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Undercover_Skank
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Mar 15, 2004 07:13 AM
