Solenoid Leak Test - Honda Acura NSX 1991 Service Manual

Modulator/Solenoid

Solenoid Leak Test

1 . Disconnect the 6-P inspection connector (PNK)
from the connector cover located under the glove
box and connect the inspection connector to the
ALB checker.
ANTI-LOCK BRAKE SYSTEM
INDICATOR LIGHT
ALB CHECKER
(US)
o r
(Canada)
CAUTION: Place the vehicle on level ground with
the wheels blocked. Put the transmission in neutral
for
manual transmission models,
automatic transmission models. ,
2. Remove the modulator reservoir filter, then fill the
modulator reservoir to the MAX level.
NOTE: Do not reuse aerated brake fluid that has
been bled from the power unit.
3. Bleed high pressure fluid from the maintenance
bleeder with the special tool. BLEEDER T-WRENCH
SOLENOID HE
UNIT
Unit
CONNECTOR
6-P INSPECTION
CONNECTOR
and in P for
00
MAINTENANCE
BLEEDER
6 x 1.25mm
5.5 N-m (0.55
kg-m,
4.0
4. Start the engine and release the parking brake.
5. Turn the Mode Selector to 1 and press the Start
Test button.
6. While the ALB pump is running, place your finger
over the top of the solenoid return tube in the
modulator reservoir.
SOLENOID '
RETURN
TUBE
If you can feel back fluid coming from the return
l
tube, one of the solenoids is leaking. Go to
Solenoid Flushing.
tube, one of the solenoids is leaking. Go to step
7.
l If you can't feel brake fluid coming from the
return tube, the solenoids are OK.
Reinstall the modulator reservoir filter and refill
the reservoir to the MAX level.
7. Bleed high-pressure fluid from the maintenance
bleeder with the special tool, then run through
modes 3 and 6 with the ALB checker. Repeat this
three or four times.
8. Repeat steps 5 and 6.
modulator reservoir filter and refill the reservoir
to the MAX level.
modulator/solenoid
SOLENOID RETURN
TUBE
Feel for brake
fluid here.
SUPPLY
unit.