Acura RL (1996-2004 year). Manual — part 515
Troubleshooting
DTC 7-2: Left-front Solenoid (cont'd)
Check for an open in the SOLE-
NOID circuit:
1. Connect the front fail-safe relay
connector terminals No. 1 and
No. 2 using a jumper wire.
2. Disconnect the modulator
unit 14P connector.
3. Measure the voltage between
body ground and terminals
No. 7 and No. 10 individually.
Is there battery voltage?
Is the resistance as specified?
Inlet: 2.5-2.9 or 6.5-7.5
Outlet: 2.5 - 2.9 or 3.3-3.9
Check for a short to body ground
in the solenoid:
Check for continuity between the
modulator unit 14P connector
terminals No. 3 and No. 14 and
body ground.
Is there continuity?
FRONT FAIL-SAFE RELAY CONNECTOR
SOLENOID (BRN/BLK)
JUMPER WIRE
Repair open in the wire(s) between
the front fail-safe relay and modu-
lator unit.
NOTE:
Inlet Solenoid
Outlet Solenoid
STANDARD RESISTANCE
A TYPE
2.5-2.9
2.5-2.9
B TYPE
6.5-7.5
3.3-3.9
Visually inspect the modulator
wire harness. If the harness is
OK, replace the modulator unit.
(Open or short in the left-front
inlet or outlet solenoid)
Visually inspect the modulator
wire harness. If the harness is
OK, replace the modulator unit.
(Short to body ground in the left-
front inlet or outlet solenoid)
Terminal side of female terminals
MODULATOR UNIT 14P CONNECTOR
Terminal side of male terminals
MODULATOR UNIT 14P CONNECTOR
Wire side of female terminals
Check the solenoid:
1. Measure the resistance
between the modulator unit
14P connector terminals to
determine the solenoid stan-
dard resistance (A type or B
type).
Inlet:
— No. 8 and No. 12
— No. 9 and No. 13
Outlet:
— No. 1 and No. 5
— No. 2 and No. 6
2. Measure the resistance
between the modulator unit
14P connector terminals No. 3
and No. 7, and terminals No. 10
and No. 14.
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Check for a short in the modula-
tor wire harness:
Check for continuity between the
modulator unit 14P connector
terminal No. 14 and the following
terminals:
— No. 3: Left-front outlet
— No. 12: Right-front inlet
— No. 1: Right-front outlet
Is there continuity?
Check for a short in the modula-
tor wire harness:
Check for continuity between the
modulator unit 14P connector
terminal No. 3 and the following
terminals:
— No. 12: Right-front inlet
— No. 1: Right-front outlet
Is there continuity?
Check for a short to body ground
in the FL-IN and FL-OUT circuit:
1. Disconnect the ABS control
unit 26P connector.
2. Check for continuity between
body ground and terminals
No. 1 and No. 14 individually.
Is there continuity?
Check for a short in the FL-IN cir-
cuit:
Check for continuity between the
ABS control unit 26P connector
terminal No. 1 and the following
terminals:
— No. 14: Left-front outlet
— No. 2: Right-front inlet
— No. 15: Right-front outlet
Is there continuity?
MODULATOR UNIT UP CONNECTOR
Replace the modulator wire har-
ness. (Short to the FL-OUT, FR-IN
or FR-OUT circuit in the FL-IN cir-
cuit)
Wire side of female terminals
Replace the modulator wire har-
ness. (Short to the FR-IN or FR-
OUT circuit in the FL-OUT circuit)
ABS CONTROL UNIT 26P CONNECTOR
Repair short to body ground in the
FL-IN or FL-OUT circuit between
the ABS control unit and modula-
tor unit.
Wire side of female terminals
Repair short to the FL-OUT, FR-
IN or FR-OUT circuit in the FL-IN
circuit between the ABS control
unit and modulator unit.
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Troubleshooting
DTC 7-2: Left-front Solenoid (cont'd)
Check for a short in the FL-OUT
circuit:
Check for continuity between the
ABS control unit 26P connector
terminal No. 14 and the following
terminals:
No. 2 : Right-front inlet
No. 15: Right-front outlet
Is there continuity?
Check for an open in the FL-IN
and FL-OUT circuits:
1. Connect the modulator unit
14P connector.
2. Measure the voltage between
body ground and the ABS con-
trol unit 26P connector termi-
nals No. 1 and No. 14 individu-
ally.
Is there battery voltage?
Check for an open in the GND cir-
cuit:
1. Disconnect the ABS control
unit 22P connector.
2. Check for continuity between
the ABS control unit 26P con-
nector terminal No. 25 and
body ground.
Is there continuity?
Check for a short to body ground
in the FSR circuit:
1. Remove the rear fail-safe relay.
2. Remove the jumper wire from
the front fail-safe relay con-
nector.
3. Check for continuity between
the ABS control unit 22P con-
nector terminal No. 1 and
body ground.
Is there continuity?
ABS CONTROL UNIT 26P CONNECTOR
NOTE: Leave jumper wire
in fail-safe relay connector.
Repair open in the FL-IN or FL-
OUT circuit between the ABS
control unit and modulator unit.
Repair open in the wire between
the ABS control unit and body
ground, or poor ground.
Repair short to body ground in
the wire between the ABS con-
trol unit and front fail-safe relay.
FL-IN (RED/BLU)
ABS CONTROL UNIT 22P CONNECTOR
Wire side of female terminals
Wire side of female terminals
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FRONT FAIL-SAFE RELAY CONNECTOR
Check for an open in the FSR cir-
cuit:
1. Connect the front 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.
Is there continuity?
Repair open in the wire between
the ABS control unit and front
fail-safe relay.
Wire side of female terminals
Check for an open in the GND
circuit:
Check for continuity between the
front fail-safe relay connector ter-
minal No. 3 and body ground.
FRONT FAIL-SAFE RELAY CONNECTOR
Is there continuity?
Repair open in the wire between
the front 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.
ABS CONTROL UNIT 22P CONNECTOR
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