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Most common ABS problems.

 
Old 09-25-2010, 03:28 PM
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j3studio
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Originally Posted by ddahlgren View Post
I have come to the conclusion these cars are not that complicated on paper but the way they are built service parts and test points are buried in impossible to get at places without major disassembly. An example would be if they put the ECM under the dash and relays and second fuse box there it would have saved a good deal of time later.
Very true...
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Old 01-17-2019, 03:13 PM
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Default 89 ABS fixed

i changed the relay for the pump and itís marvelous pt#
0332205003. T
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Old 01-17-2019, 03:26 PM
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I have a Tech 1 with ALL the cartridges - happy to sell for the quoted $1800 !
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Old 01-18-2019, 09:41 AM
  #44  
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Originally Posted by steve59 View Post
on my 87 the light comes and goes. The previous owner said it was the pump, but it also could be dirt on the sensors, since it's an intermittent problem. Never had it looked at or fixed.
me too, have been told it's pump. Not a major concern at present.
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Old 01-18-2019, 11:08 AM
  #45  
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Here's some info that might help someone from when I repaired my abs back in 2017. I did not have the tester, the light came on sometimes and finally continuously. I found if I tapped the relays the light went off so pretty sure it was one of the relays. Then it was a matter of finding replacements. Here's what I found from my research posted previously:

I was just going against the Bosch numbers on them I wrote down from mine:
Module Relay: 0332512006 - Looks like there's another possible but would have to do a little trimming on it.
Pump Motor Relay: 0332002171
Solenoid Relay: 0332205003

I did a search on the numbers off the various units and they came up for Mercedes Benz, Porsche 911, BMW & Volvo in various 'for sale' ads, most of them having pictures showing the same units including the Bosch part numbers. Most did not always list a specific vehicle model other than the Porsche from my initial looking.

I seriously suspect the ABS pump in those corresponding vehicles are probably the same also but haven't found anything on that yet (if the parts are the same, I suspect the pump portion is the same also but that's speculation). The other thing is the wheel sensors, I'm wondering if the other manufacturers used the same ABS Sensors that were used on the Corvette? They're unavailable unless you luck out and find some used for the C4's.

Funniest thing I found though was a relay listed for a C4 typically was $40-50 where the same used relay from a Mercedes was listed for under $20 (found more than 1 at that price).

Actually I makes sense, I think Bosch was the only company making ABS systems back in that timeframe.


Update: Went back and started looking up some of the models
Module Relay 0332002171: BMW E30 ABS Anti Lock Brake Pump Relay 318is 318ic 325i 325is 325ic 325ix
Mercedes W126 W123 W107 W124 W201 relay 0332002171
0 332 002 171 PORSCHE / AUDI / VW OEM ABS PUMP RELAY
Solenoid Relay 0332205003; BMW E30 Mercedes Corvette ABS Pump Breaking System Relay Bosch 0332205003
NEW Bosch Relay (ABS) 0332205003 BMW 34511154919
ABS SYSTEM RELAIS VOLVO 740 - 760 - 780 - 940 - 960 / BOSCH 0332205003

Possible alternative for 0332512006: 0332512007. That one has a skirt that would have to be trimmed, but first look appears it may be the same relay in a different housing

That's what I found. I got replacement relays, swapped them out and the abs worked and has worked ever since.

Last edited by hcbph; 01-18-2019 at 11:11 AM.
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