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Mitsubishi Montero & Montero Sport This sport utility vehicle offers more size than the other Mitsubishi SUVs, but manages to keep a sporty look and comfortable feel, unlike many larger SUVs.

Gen 3 limited HBB issues

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Old 07-09-2019, 11:05 AM
wussman's Avatar
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Default Gen 3 limited HBB issues
A couple of weeks ago the ABS/Brake lights and buzzer went off while driving. I had the hard brake pedal and all. After some research I took the electric motor off and checked it. It still had copper on the commutator but was super dirty. I cleaned it up and hooked it up to a battery and it worked. I put it back on the truck but still had the same issue. I switched the relays out with my other Gen 3 Montero and they worked fine. I was able to find the whole assembly from the junk yard and I switched the motor and the accumulator over. Hooked everything back up and the lights and buzzer are still on. Also, the 10amp fuse under the dash for the ABS was still good as well. The truck starts and runs without issues, it just doesn't have any brakes. I don't know what else to check so any help would be appreciated. Thanks
 
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Old 07-10-2019, 01:08 AM
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Very likely that Hydraulic Booster Accumulator has gone bad. That is the steel ball on top of your brake master cylinder. Easy to replace.
 
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  #3  
Old 07-10-2019, 01:13 PM
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I switched that and it still doesn't work.
 
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Old 07-10-2019, 06:50 PM
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Since you have ABS light ON, try to pull ABS error code. That will help direct your in the direction of an issue.
 
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