Acura RL (1996-2004 year). Manual — part 517

Troubleshooting

DTC 7-4: Rear Solenoid (cont'd)

(From page

19-89

)

Check for a short in the R-IN cir-
cuit:

Check for continuity between the

ABS control unit 26P connector
terminal No. 3 and the following
terminals:
— No. 2: Right-front inlet
— No. 15: Right-front outlet
— No. 1: Left-front inlet
— No. 14: Left-front outlet

Is there continuity?

Is there battery voltage?

(To page

19-91

)

ABS CONTROL UNIT 26P CONNECTOR

Repair short to the FR-IN, FR-
OUT, FL-IN or FL-OUT circuit in

the R-IN circuit between the ABS
control unit and modulator unit.

Wire side of female terminals

Repair short to the FR-IN, FR-
OUT, FL-IN or FL-OUT circuit in
the R-OUT circuit between the
ABS control unit and modulator
unit.

NOTE: Leave jumper wire
in fail-safe relay connector.

Repair open in the R-IN or R-OUT
circuit between the ABS control
unit and modulator unit.

Check for a short in the R-OUT
circuit:
Check for continuity between the
ABS control unit 26P connector
terminal No. 16 and the following
terminals:
— No. 2: Right-front inlet
— No. 15: Right-front outlet
— No. 1: Left-front inlet
— No. 14: Left-front outlet

Is there continuity?

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(From page

19-90

)

ABS CONTROL UNIT 22P CONNECTOR

Check for an open in the GND cir-
cuit:

1. Disconnect the ABS control

unit 22P connector.

2. Check for continuity between

terminal No. 10 and body

ground.

Is there continuity?

Repair open in the wire between

the ABS control unit and body

ground, or poor ground.

Wire side of female terminals

Check for a short to body ground
in the FSR circuit:

1. Remove the front fail-safe

relay.

2. Remove the jumper wire from

the rear fail-safe relay connec-
tor.

3. Check for continuity between

the ABS control unit 22P con-

nector terminal No. 1 and body
ground.

Is there continuity?

Repair short to body ground in
the wire between the ABS con-
trol unit and rear fail-safe relay.

REAR FAIL-SAFE RELAY CONNECTOR

Check for an open in the FSR cir-
cuit:

1. Connect the rear fail-safe relay

terminal No. 4 to body ground
with a jumper wire.

2. Check for continuity between

the ABS control unit 22P con-

nector terminal No. 1 and
body ground.

JUMPER
WIRE

Terminal side of female terminals

ABS CONTROL UNIT 22P CONNECTOR

Is there continuity?

Repair open in the wire between

the ABS control unit and rear
fail-safe relay.

Wire side of female terminals

(To page

19-92

)

Main Menu

Table of Contents

Troubleshooting

DTC 7-4: Rear Solenoid (cont'd)

(From page

19-91

)

Check for an open in the GND cir-
cuit:

1. Remove the jumper wire from

the rear fail-safe relay connec-
tor.

2. Check for continuity between

the rear fail-safe relay connec-
tor terminal No. 3 and body
ground.

REAR FAIL-SAFE RELAY CONNECTOR

Is there continuity?

Repair open in the wire between
the rear fail-safe relay and body
ground, or poor ground.

Terminal side of female terminals

Check for loose ABS control unit
connectors. If necessary, substi-
tute a known-good ABS control
unit and recheck.

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DTC 8-1: ABS Function

The ABS control unit monitors the ABS functioning time during regular diagnosis, and it turns the ABS indicator light on if

the ABS is functioning for a prolonged time.

Possible causes:

Wheel sensor signal disappears at speeds of 6 mph (10 km/h) or less

Faulty ABS control unit

— With engine running, ABS indi-

cator light is ON.

— With the SCS service connec-

tor connected (see page

19-40

),

DTC 8-1 is indicated.

Problem verification:
Test-drive the vehicle at speeds
of 12 mph (20 km/h) or more for
more than 2 minutes.

Does the ABS indicator light

come on?

The system is OK at this time.
Check for loose wheel sensor
connectors, and check the sensor
installation (intermittent trou-
ble).

Probable cause was driving over
rough roads.

Is code 8-1 indicated?

Perform the appropriate trouble-
shooting for the code.

Replace the ABS control unit.

Confirm the DTC (see page

19-40

).

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