How to bleed the brake system HONDA CR-V 1997 RD1-RD3 / 1.G Workshop Manual

Bleeding
CAUNON:
. Do not spill brake tluid on the vehicle. it may damage
the paint; if brake fluid does contaqt th€ paint, wash
it otf immodiately with water.
. Maks sure no dirt oy other forsign matter is allowsd
to contaminate the brake fluid.
NOTE:
. Do not reuse the drained fluid.
. Always use Genuine Honda DOT 3 Brake Fluid. Using
a non-Honda brake fluid can cause corrosion and
decrease the life of the svstem.
. The reservoir on the master cylinder must be at the
MAX (upper) level mark at the start of bleeding pro-
cedure and checked after bleeding each brake caliper
and wheel cylinder. Add fluid as required.
1, Make sure the brake fluid level in the reservoir is at
the MAX (uDDer) level line.
MAX {UPPER) LEVELLINE
RESERVOIR
MASTER CYLINDER
2.
3.
Have someone slowly pump the brake pedal several
times, then apply steady pressu.e.
Loosen the brake bleed screw to allow air to escape
from the system. Then tighten the bleed screw
securely.
Repeat the procedure for each wheel in the sequence
shown below until air bubbles no longer appear in
the tluid.
Refill the reservoir on the master cvlinder to the
MAX (upper) level line.
ALEEDING SEOUENCE:
O Front RightGt Rear Right
O Front LeflO Rear Left
NOTE: Bleed the front calipers first in the bleeding
procedure.
4.
FRONT:
BLEEO SCREW7 N.m (0.? kgf.m, 5 lbf.ftl
19-7
www.emanualpro.com

Kickback'1. The motor operates when the ABS is functioning. and the fluid in the reservoir is forced out to the master cylinder,
causing kickback at the brake pedal.
2. The ABS control unit operates the solenoid valve when the brake pedal is released after the initial diagnosis You may
hear the solenoid valve operate at this time, but it is normal
Pumo Motol
1. The pump motor operates when the ABS is functioning
2. The ABS control unit checks the pump motor operation during acceleration. You may hear the motor operate at this
time, but it is normal.
Brake Fluid Replacement/Ail Bleeding
L Brake fluid replacement and air bleeding procedures are the same as for vehicles without ABS To ease bleeding, start
with the front wheels.
Troubleshooting
1. The troubleshooting flowchart procedures assume that the cause of the problem is still present and the ABS indicator
is still on. Following the flowchart when the ABS indicator does not come on can result in incorrect diagnosis.
2. Ouestion the customer about the conditions when the problem occurred, and try to reproduce the same conditions
for troubleshooting.
Self-diagnosis is made at various times such as the initial diagnosis, except ABS control, during ABS control, during
acceleration, during the specified vehicle speed, etc. Therefore, the symptom canngt be checked unless the check
conditions match with the problem conditjons
3. When the ABS jndicator does not come on during the test-drive. but troubleshooting is performed based on the DTC,
check lor loose connectors, poor contact of the terminals, etc., before you start troubleshooting.
4. After troubleshooting, erase the DTC and test-drive the vehicle. Be sure the ABS indicator does not come on.
5. The connector illustratjons show the female terminals with a single outline and the male terminals with a double out-
l ne.
ABS Function Test
To simulate ABS operation and activate the solenoid valves and pump, use the Honda PGM Tester.
Connect the PGM Tester to the 16P Data Link Connector (DLC). When the System Select menu is displayed, select the ABS
Test Mode menu, and follow the tester's prompts.
19-37
www.emanualpro.com

Modulator Unit
Removal/lnstallation
NOTE:
. Do not spill brake fluid on the vehicle; it may damage the painu if brake fluid does contact the paint, wash it off imme-
diately with water.
a Take care not to damage or deform the brake lines during removal and installation.
. To prevent the brakefluidfrom flowing, plug and coverthe hose ends and joints with a shop towel or equivalent mate-
rial,
Romoval
1. Disconnect the modulator unit and Dump motor connectors.
2. Disconnect the brake lines, then remove the modulator unit.
lnstallation
1. Install the modu lator u nit. then con nect the brake lines. Tighten the flare nuts to 15 N.m ( 1.5 kgf.m, 1 1 lbf.ft).
2. Connect the modulator unit and oumo motor connectors.
3. Bleed the brake system, staning with the front wheels.
4. Start the engine, and check that the ABS indicator goes off.
5. Test-drive the vehicle, and check that the ABS indicator does not come on,
NOTE: This illustration shows the '97 - 98 models. The'99 - 00 models are similar.
PUMP MOTORCONNECTOR
MODULATON UNIT\*\
,@
I
TORX EOLT9.8 N,m (1.0 kgf.m.7.2lbf ftl
19-56
www.emanualpro.com