ABS, ABS/TRACS, ABS/STC Control Unit removal instructions.
Remove the Air cleaner assembly, top and bottom.There is no need to disconnect
the Air Mass Sensor, just set the top of the air cleaner to the side.
Spray some WD-40 on the three plastic
retainers that hold the bottom of the air cleaner to the chasis. The best way to
remove the bottom it is by pulling straight up with a quick pull, like catching
it by surprise.
Remove the two ABS fuses from the fuse panel.
1999 S80 fuses #11 and #12. 2000 S80 fuses #14 and #19.
Remove the large connector. There is a lever (black plastic cover, see picture #3 and #4) built into the connector, that you pull up to disconnect the connector. Be careful not to break it. In picture #3, the arrow points to the release tab. Push the tab and pull the connector up.
You may pull the fuse box up to allow you to open the
Continue pulling (lifting or rotating) the black plastic cover until the connector is disconnected from the controller.
NOTE: In some 2000 and 2001 models you need to remove
the bolts first and then lower the ABS unit to be able to release the cover for
the large connector. To remove the bolts see step #9
Remove the small connector with 2 wires. This is the power connector. See picture #3.
Once the connectors are removed you will need a very special tool, it is a
Torx wrench (socket) E5 There are 4 of these bolts.
You may have to
bend the steel brake lines a little to allow the ratchet to fit in that area.
If you are in the East coast or in an area where salt is used on the roads in
the winter, you must spray some WD-40 on the bolts and then tap (with a large
wrench) the E5 Torx socket into the head of the bolt. Make sure you spend some
time tapping every bolt to break the rust. If a bolt is stuck and the bolt head
is rounded, you will need to cut the bolt off.
You can purchase the tool now from me
using Paypal to pay. Use the Paypal button to purchase and pay for the E5 Torx
socket. The cost is $9.00 and First Class US Mail shipping is $3.50. Delivery
takes 2-4 days. International shipping is $5.75 and it
takes 5-8 days.
You will receive a $5.00 discount on the
repair of your ABS unit when you purchase the tool here.
When the bolts are removed, you pull the unit straight away from the brake block assembly. There are 7,
8 or 10 plungers that protrude into the ABS controller. Even though this sounds complicated, it is a fairly easy job. The ABS fuses (#11 and #12) must be removed before the ABS module connector is disconnected.
For legal reasons I do not recommend that you drive your car without the ABS
unit; however, everybody has driven their car without the unit without harming
any systems. The cruise control will not work while the unit is removed. The
ABS, STC and TRACS (If your car has it) will not work while the ABS Control Unit
is removed (These do not work when the ABS light is ON), which is the same
situation as when your ABS Unit has failed. You must understand that if you
drive your car without the ABS unit, you are doing it at your own risk.
If you drive your Volvo without the ABS unit, the check engine light will turn on.
You will receive instructions on how to turn the CEL off once your repaired unit
is sent to you.
You may want to protect the connector and the solenoids (metal cylinders) from moisture by enclosing it with a plastic bag.
To ship your ABS unit, enclose it in an anti-static bag if you can find one.
If not, wrap it in aluminum foil and then protect it in bubble wrapping.
This is a video of
the removal instructions, watch it after reading the instructions and give us
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