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Old 01-24-2013, 07:28 PM   #1 (permalink)
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Default Anti-Lock Light Remains On

Ref: 1995 RRC Anti-Lock Light

There appears to be so many differing opinions of what the anti-lock light problem is...

Does anyone know exactly the mechanisms that would trip this light and fix it??

Could really use some help here. I have checked many aspects but maybe overlooking something....It's my last light on and would really like to finally get it fixed.

Thanks!
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Old 01-26-2013, 08:04 PM   #2 (permalink)
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People seem to be reluctant to dig into this one-I have a current post asking the same thing, except my traction control light is on also.
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Old 01-26-2013, 10:59 PM   #3 (permalink)
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Here is a link to instrucyions on reading the ABS codes. You'll best best off to clear the codes first, then go for a drive yo re-establish yhe fault codes. Then systematically work yhrough correcting them.

erovers.com - Finger Lakes Rover Club: Land Rover and Off-Road Enthusiasts: Troubleshooting ABS Light on RR Classic and Disco 1's

Let us know what codes you get and we'll try to help with diagnosyics.
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Old 01-27-2013, 06:59 PM   #4 (permalink)
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Quote:
Originally Posted by brider View Post
People seem to be reluctant to dig into this one-I have a current post asking the same thing, except my traction control light is on also.
Hey brider ... i have exact same issue. If you come up with any insights please post! Thx
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Old 01-27-2013, 07:25 PM   #5 (permalink)
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So have either of you pulled the codes from the ABS yet? It's difficult to give suggestions without knowing any more than that the light is on. Would be glad to help but nerd more info.
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Old 01-27-2013, 07:42 PM   #6 (permalink)
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Originally Posted by 76FJ55 View Post
So have either of you pulled the codes from the ABS yet? It's difficult to give suggestions without knowing any more than that the light is on. Would be glad to help but nerd more info.
Its on my list 76 ... got the jumper rundown from the guys at roversnorth the other day. Will report back next weekend ...

(i have so many electric problems its tough to know where to start)
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Old 01-28-2013, 09:58 AM   #7 (permalink)
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I have the ABS light and the Diff/4x4 light on in my truck. I took it to Land Rover a while ago and told me that when they plugged it in to the computer every single code came up for EACH. So I did not bother getting into that. All I know is the 4x4 works as does the ABS, and occasionally if I hit a pothole hard the lights will turn off followed by a clicking noise from the gauge cluster and when the lights are OFF my ABS DOES NOT work. So on my truck I think they are good things.
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Old 01-29-2013, 08:06 AM   #8 (permalink)
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this ABS code thing has been on various forms forever. Below are a couple posts I clipped & saved long ago.

The clicking you are hearing is most probably a loose or bad relay.

>>I'll give my 95lwb version... there is an ABS plug under the drivers seat...? "The ABS can be diagnosed without expensive equipment. Just above the driver's ankles is a black cardboard panel that is held on with plastic push clips. Remove that panel and locate the blue ABS diagnostic connector. Use a paper clip to jump the black and black/pink wires together. Turn on the key (don't engage the starter) and the anti-lock light will begin a series of blinks. The first will be a long blink followed by a short blink. This indicates that the ECU is in diagnostic mode. Start counting the blinks after that. The first code that comes up will be something like blink, blink, a 2.5 second pause, and then blink, blink, blink, blink, blink, blink to indicate a failure code of 2-6. Each stored code will display this way 3 times before the next one starts. It is a slow process (especially if you have 4-15's and 6-15's stored) but it works. And as each of the codes are flashing remove the jumper and this should remove the code........."

and some more....


Troubleshooting Why Your ABS Light is On - Range Rover Classic and Discovery 1

If your ABS Light is illumintated and you are not near a dealer or other diagnostic equipment, you can use the blink method to determine what is causing the fault. First locate and remove the ABS Warning Light Relay from the group of relays underneath the seat (consult owner's guide for specific vehicle location, if needed). Then, find the blue 4 pin connector under the front of the driver's seat on the RR (or under the black, cardboard lower dash on the Disco-1) and jumper the black to black/pink wire with the key on – a paperclip will work.

The ABS light will first flash a long then short blink to indicate the system is indiagnostic mode. Then you will start to get a flash sequence. Don’t panic cause the code will repeat. There will be a set of flashes then a pause then another set of flashes then a long pause then it will repeat that code 2 more times. You are counting two sets of flashes (i.e. blink, blink, pause, blink, blink, blink, blink, blink, blink would be code 2-6 or “Stop Light Switch Fault…see codes below.) To clear the code…you need to remove the jumper during the flash sequence.

Note: You may have more than one code to clear so don’t panic if you clear the code and another sequence begins. It will continue to flash the code(s) until it has been displayed then the ABS light will stay on. Turn the key off then back on & reinsert the jumper to go to the next code. If you are not sure of a code just leave the jumper in & cycle the key on & off to restart the sequence. Write down each code as you go & erase each one by pulling the jumper during the blink sequence to erase that code. When you pull the jumper, allow the sequence to finish. The ABS light will stay on after the code has finished blinking. Let me know if you need any more help or if you need to know what the codes mean.

The ABS code series always starts with the following sequence of 1 long, 1 short, pause 1 long, and 1 short. It then goes into displaying the codes. Every code starts with 2 pulses on (2.5s each) and then a series of pulses which are the rest of the code.

Codes:

2-12 Front Right

2-13 Rear Left

2-14 Front left

2-15 Rear Right

Reason: Too large an air gap, or sensor has been forced out by exciter ring – try tapping sensor back into place.


5-12 front right

5-13 rear left

5-14 front left

5-15 Rear Right

Reason: Sensor wire has an intermittent fault – check connection(s).

6-12 front right

6-13 rear left

6-14 front left

6-15 rear right

Reason: no output from sensor. Sensor may have too large an air gap. Try tapping in sensor(s), check connections.

4-12 Front right

4- 13 rear left

4- 14 front left

4- 15 rear right

Reason: Wiring to sensor is broken or sensor resistance is too high. Inspect wiring at sensors.

2-6 Stop light switch

Reason: Faulty switch or wiring. Replace brake light switch.

Code 2-7: Continous supply to the ECU with the ignition off. Faulty valve relay or wiring.

Code 2-8: No voltage to ABS Solenoid valves. Faulty valve relay or wiring.

Codes 3-0 to 3-9: Open circuit or connection from ECU to solenoid valve in booster, or in ECU.

Codes 4-0 to 4-9: Short circuit to earth from ECU to solenoid valve in booster.


Codes 5-0 to 5-9: Short circuit to 12 volts in connection from ECU to solenoid

valve in booster. Possible earth fault.

Codes 6-0 to 6-9: Short circuit between two connections from ECU to solenoid valve in booster.

Thanks to the folks at the Rovers North Bulletin Board who posted this information. Quicker and cheaper than a trip to the dealer.
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Old 01-31-2013, 10:50 AM   #9 (permalink)
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...lwbblue, GOLD!

I had read something like that procedure somewhere before, but it wasn't this clear-cut.

I will do this procedure at my earliest convenience. Thanks!
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