sensor ACURA CSX 2006 Service Repair Manual


19-116VSA System Components
Circuit Diagram (cont’d)
BRAKE PEDAL POSITION
SWITCH 4P CONNECTOR
PARKING BRAKE SWITCH
1P CONNECTOR
DATA LINK CONNECTOR (DLC) VSA OFF SWITCH
5P CONNECTOR
YAW RATE-LATERAL
ACCELERATION SENSOR
5P CONNECTOR
STEERING ANGLE SENSOR
5P CONNECTOR
BRAKE FLUID LEVEL SWITCH
2P CONNECTOR
UNDER-HOOD
FUSE/RELAY BOX
CONNECTOR C (2P)
WHEEL SPEED SENSOR
2P CONNECTOR
ECM/PCM CONNECTOR A (44P)
GAUGE CONTROL MODULE (TACH) 36P CONNECTOR
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
UNDER-DASH FUSE/RELAY BOX CONNECTOR E (42P)
Wire side of female terminals
Terminal side of female terminals
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DTC 11-13:
DTC 13-13:
DTC 15-13:
DTC 17-13:
YES
NO DTC VSA Modulator-control Unit 37P
Connector Terminal
YES
NO
19-117
DTC Troubleshooting
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR FR B (GRN)RL-GND (PUR)
FR-GND (PNK) RR B (LT GRN)
RL B (YEL) FL B (WHT)
RR-GND (BLU) FL-GND (RED)
Right-front Wheel Speed Sensor
Circuit Malfunction
Left-front Wheel Speed Sensor
Circuit Malfunction
Right-rear Wheel Speed Sensor
Circuit Malfunction
Left-rear Wheel Speed Sensor
Circuit Malfunction
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II) again.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for loose terminals between the wheel
speed sensor 2P connector and the VSA modulator-
control unit 37P connector. Refer to intermittent
failures troubleshooting (see page 19-98).
5. Turn the ignition switch to LOCK (0).
6. Disconnect the VSA modulator-control unit 37P connector (see step 2 on page 19- 171).
7. Disconnect the appropriate wheel speed sensor 2P connector. 8. Check for continuity between the appropriate VSA
modulator-control unit 37P connector wheel speed
sensor B and GND terminals (see table).
11-13 No. 19 No. 6
13-13 No. 22 No. 11
15-13 No. 9 No. 21
17-13 No. 20 No. 8
Repair short in the wires between the
appropriate wheel speed sensor and the VSA
modulator-control unit.
Go to step 9.
(cont’d)
Wire side of female terminals
I s DT C 11-13, 13-13, 15 -13, and / or 17 -13indicated?
Is there continuity?
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DTC
YES
NO DTC
YES
NO
VSA Modulator- control Unit 37P
Connector Terminal Appropriate Wheel
Speed Sensor 2P
Connector Terminal VSA Modulator-
control Unit 37P
Connector Terminal Appropriate Wheel
Speed Sensor 2P
Connector Terminal
19-118 VSA System Components
DTC Troubleshooting (cont’d)
RR B (LT GRN)
FL B (WHT)
FR B (GRN)
RL B (YEL) RR B
(LT BLU)
FL B
(WHT)
FR B
(GRN)
RL B
(YEL)
LEFT-
REAR
RIGHT-
FRONT RIGHT-
REARLEFT-
FRONT
WHEEL SPEED SENSOR 2P CONNECTOR
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR FL-GND
(RED)
RR-GND
(GRY)
RL-GND
(RED)
FR-GND
(PNK) RIGHT-
FRONT
LEFT-
REAR LEFT-
FRONTRIGHT-
REAR
WHEEL SPEED SENSOR 2P CONNECTOR
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR FL-GND (RED)
RR-GND (BLU)
RL-GND (PUR)
FR-GND (PNK)
9. Check for continuity between the appropriate VSA modulator-control unit 37P connector terminal and
the wheel speed sensor 2P connector terminal (see
table).
11-13 No. 9 Right-front
13-13 No. 22 Left-front
15-13 No. 9 Right-rear
17-13 No. 20 Left-rear
Go to step 10.
Repair open in the wire between the
appropriate wheel speed sensor and the VSA
modulator-control unit. 10. Check for continuity between the appropriate VSA
modulator-control unit 37P connector terminal and
the wheel speed sensor 2P connector terminal (see
table).
11-13 No. 6 Right-front
13-13 No. 11 Left-front
15-13 No. 21 Right-rear
17-13 No. 8 Left-rear
Go to step 11.
Repair open in the wire between the
appropriate wheel speed sensor and the VSA
modulator-control unit.
Wire side of female terminals
Terminal side of female terminals
Wire side of female terminals
Terminal side of female terminals
Is there continuity?
Is there continuity?
08/08/21 15:04:58 61SNR030_190_0118
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DYNOMITE -2009-


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DTC VSA Modulator-control Unit 37P
Connector Terminal
YES
NO DTC VSA Modulator-control Unit 37P
Connector Terminal
YES
NO
19-119
FR B (GRN) RL-GND (PUR)
FR-GND (PNK) RR B (LT GRN)
FL-GND (RED)
FL B (WHT)
RR-GND
(BLU)
RL B (YEL)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
FR B (GRN)RL-GND (PUR)
FR-GND (PNK) RR B (LT GRN)
FL-GND (RED)
FL B (WHT)
RR-GND
(BLU)
RL B (YEL)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
11. Check for continuity between body ground and the
appropriate VSA modulator-control unit 37P
connector terminals (see table).
11-13 No. 19 No. 6
13-13 No. 22 No. 11
15-13 No. 9 No. 21
17-13 No. 20 No. 8
Repair short to body ground in the wire
between the appropriate wheel speed sensor and
the VSA modulator-control unit.
Go to step 12. 12. Turn the ignition switch to ON (II).
13. Measure the voltage between body ground and the
appropriate VSA modulator-control unit 37P
connector terminals (see table).
11-13 No. 19 No. 6
13-13 No. 22 No. 11
15-13 No. 9 No. 21
17-13 No. 20 No. 8
Repair short to power in the wire between
the appropriate wheel speed sensor and the VSA
modulator-control unit.
Go to step 14.
(cont’d)
Wire side of female terminals Wire side of female terminals
Is there continuity?Is t her e 0.1 V or mor e?
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YES
NO
YES
NO
DTC 12-11:
DTC 14-11:
DTC 16-11:
DTC 18-11:
19-12019-120VSA System Components
DTC Troubleshooting (cont’d)
14. Turn the ignition switch to LOCK (0).
15. Substitute the appropriate wheel speed sensor with
opposite wheel speed sensor, or with a known-
good wheel speed sensor.
16. Reconnect all connectors.
17. Turn the ignition switch to ON (II).
18. Clear the DTC with the HDS.
19. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
20. Check for DTCs with the HDS.
Check for loose terminals in the VSA
modulator-control unit 37P connector. If necessary,
substitute a known-good VSA modulator-control
unit (see page 19-171), and retest.
Replace the original wheel speed sensor
(see page 19-173). NOTE: These DTCs may be caused by electrical
interference. Check for aftermarket devices installed in
the vehicle when these DTCs are indicated.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle. NOTE: Drive the vehicle on the road, not on a lift.
4. Check for DTCs with the HDS.
If DTC 12-12, 14-12, 16-12, or 18-12 is
indicated at the same time, do the DTC 12-12,
14-12, 16-12, or 18-12 troubleshooting first
(see page 19-121). If DTC 12-12, 14-12, 16-12, or
18-12 is not indicated, go to step 5.
If any other DTCs are indicated, go to the
indicated DTCs troubleshooting. If DTCs are not
indicated, there is an intermittent failure, the
system is OK at this time. Check for loose terminals
between the wheel speed sensor 2P connector and
the VSA modulator-control unit 37P connector.
Refer to intermittent failures troubleshooting
(see page 19-98).Right-front Wheel Speed Sensor
Electrical Noise or Intermittent Interruption
Left-front Wheel Speed Sensor
Electrical Noise or Intermittent Interruption
Right-rear Wheel Speed Sensor
Electrical Noise or Intermittent Interruption
Left-rear Wheel Speed Sensor
Electrical Noise or Intermittent Interruption
I s DT C i nd i cat ed t hat i s i nd i cat ed i n st ep 4?
I s DT C 12 -11, 14-11, 16-11, and / or 18-11indicated?
08/08/21 15:04:58 61SNR030_190_0120
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DTC Appropriate Wheel Speed Sensor
YES
NO
YES
NO
DTC 12-12:
DTC 14-12:
DTC 16-12:
DTC 18-12:
19-12119-121
5. Turn the ignition switch to LOCK (0).
6. Check that the appropriate wheel speed sensor isproperly mounted (see page 19- 173).
12-11 Right-front
14-11 Left-front
16-11 Right-rear
18-11 Left-rear
Check for loose terminals in the VSA
modulator-control unit 37P connector. If necessary,
substitute a known-good VSA modulator-control
unit (see page 19-171), and retest.
Reinstall the wheel speed sensor, and check
the mounting position (see page 19- 173).1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle. Drive the vehicle at 20 km/h
(13 mph) or more, and go a distance of 100 m
(328 ft) or more.
NOTE: Drive the vehicle on the road, not on a lift.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for loose terminals between the wheel
speed sensor 2P connector and the VSA modulator-
control unit 37P connector. Refer to intermittent
failures troubleshooting (see page 19-98).
5. Turn the ignition switch to LOCK (0).
6. Disconnect the VSA modulator-control unit 37P connector (see step 2 on page 19-171).
(cont’d)Right-front Wheel Speed Sensor
Short to the Other Sensor Circuit
Left-front Wheel Speed Sensor
Short to the Other Sensor Circuit
Right-rear Wheel Speed Sensor
Short to the Other Sensor Circuit
Left-rear Wheel Speed Sensor
Short to the Other Sensor Circuit
Is t he w heel speed sensor i nst al l at i on OK ?
I s DT C 12 -12 , 14-12 , 16-12 , and / or 18-12indicated?
08/08/21 15:05:52 61SNR030_190_0121
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DTC VSA Modulator-control Unit 37P
Connector TerminalOther Terminals YES
NO
Appropriate
Terminal
19-122VSA System Components
DTC Troubleshooting (cont’d)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
DTC 12-12
DTC 14-12
DTC 16-12
DTC 18-12 RR-GND (BLU)
FR-GND (PNK)
RL-GND (PUR)
FR-GND (PNK) RR-GND
(BLU)
RL-GND (PUR)
RL-GND (PUR)
FR-GND (PNK)
RR-GND (BLU)
FR-GND (PNK) RL-GND (PUR) FL-GND (RED)
FL-GND (RED)
FL-GND (RED)
FL-GND (RED)
RR-GND (BLU)
7. Check for continuity between the appropriate VSA
modulator-control unit 37P connector wheel speed
sensor GND terminals (see table).
12-12 No. 6
14-12 No. 11
16-12 No. 21
18-12 No. 8 Repair short in the wires between the
appropriate wheel speed sensor and the VSA
modulator-control unit.
Check for loose terminals in the VSA
modulator-control unit 37P connector. If necessary,
substitute a known-good VSA modulator-control
unit (see page 19-171), and retest.
No. 11 No. 21 No. 8 No. 6 No. 21 No. 8
No. 6 No. 11 No. 8
No. 6 No. 11 No. 21
Wire side of female terminals
Is there continuity?
08/08/21 15:05:53 61SNR030_190_0122
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DTC 12-21:
DTC 14-21:
DTC 16-21:
DTC 18-21:
YES
NO DTC Appropriate Wheel Speed Sensor
YES
NO
19-123
Right-front Wheel Speed Sensor
Installation Error
Left-front Wheel Speed Sensor
Installation Error
Right-rear Wheel Speed Sensor
Installation Error
Left-rear Wheel Speed Sensor
Installation Error
1. Test-drive the vehicle at 10 km/h (7 mph).
NOTE: Drive the vehicle on the road, not on a lift.
2. Check the RF, LF, RR, LR WHEEL SPEED in the VSA DATA LIST with the HDS.
Intermittent failure, the system is OK at this
time. Check for loose terminals between the wheel
speed sensor 2P connector and the VSA modulator-
control unit 37P connector. Refer to intermittent
failures troubleshooting (see page 19-98).
Go to step 3.
3. Turn the ignition switch to LOCK (0). 4. Check that the appropriate wheel speed sensor is
properly mounted (see page 19-173).
12-21 Right-front
14-21 Left-front
16-21 Right-rear
18-21 Left-rear
Replace the appropriate wheel speed sensor
(see page 19-173).
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-173).
Are all f our values the same? Is t he w heel speed sensor i nst al l at i on OK ?
08/08/21 15:05:53 61SNR030_190_0123
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DTC 12-22:
DTC 14-22:
DTC 16-22:
DTC 18-22: DTC 12-23:
DTC 14-23:
DTC 16-23:
DTC 18-23:
YES
NO
DTC Appropriate Wheel Speed Sensor
YES
NO YES
NO
DTC Appropriate Wheel Speed Sensor
YES
NO
19-12419-124 VSA System Components
DTC Troubleshooting (cont’d)
Right-front Wheel Speed Sensor
Installation Error (30 km/h (19 mph) or More)
Left-front Wheel Speed Sensor
Installation Error (30 km/h (19 mph) or More)
Right-rear Wheel Speed Sensor
Installation Error (30 km/h (19 mph) or More)
Left-rear Wheel Speed Sensor
Installation Error (30 km/h (19 mph) or More) Right-front Wheel Speed Sensor
InstallationError(0to15km/h(0to9mph))
Left-front Wheel Speed Sensor
InstallationError(0to15km/h(0to9mph))
Right-rear Wheel Speed Sensor
InstallationError(0to15km/h(0to9mph))
Left-rear Wheel Speed Sensor
InstallationError(0to15km/h(0to9mph))
1. Test-drive the vehicle between 30 km/h (19 mph)
and 50 km/h (31 mph) for 70 seconds or more.
NOTE: Drive the vehicle on the road, not on a lift.
2. Check the RF, LF, RR, LR WHEEL SPEED in the VSA DATA LIST with the HDS.
Intermittent failure, the system is OK at this
time. Check for loose terminals between the wheel
speed sensor 2P connector and the VSA modulator-
control unit 37P connector. Refer to intermittent
failures troubleshooting (see page 19-98).
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Check that the appropriate wheel speed sensor is properly mounted (see page 19- 173).
12-22 Right-front
14-22 Left-front
16-22 Right-rear
18-22 Left-rear
Replace the appropriate wheel speed sensor
(see page 19-173).
Reinstall the wheel speed sensor, and check
the mounting position (see page 19- 173).1. Test-drive the vehicle between 1 km/h (1 mph) and
15 km/h (9 mph).
NOTE: Drive the vehicle on the road, not on a lift.
2. Check the RF, LF, RR, LR WHEEL SPEED in the VSA DATA LIST with the HDS.
Intermittent failure, the system is OK at this
time. Check for loose terminals between the wheel
speed sensor 2P connector and the VSA modulator-
control unit 37P connector. Refer to intermittent
failures troubleshooting (see page 19-98).
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Check that the appropriate wheel speed sensor is properly mounted (see page 19-173).
12-23 Right-front
14-23 Left-front
16-23 Right-rear
18-23 Left-rear
Replace the appropriate wheel speed sensor
(see page 19-173).
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-173).
Are all f our values the same?
Is t he w heel speed sensor i nst al l at i on OK ? Are all f our values the same?
Is t he w heel speed sensor i nst al l at i on OK ?
08/08/21 15:05:53 61SNR030_190_0124
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DTC 21-11:
DTC 22-11:
DTC 23-11:
DTC 24-11:
YES
NO DTC Appropriate
MagneticEncoder Note
YES
NO
19-125
Right-front Magnetic Encoder
(Wheel Bearing) Malfunction (Pulse Missing)
Left-front Magnetic Encoder
(Wheel Bearing) Malfunction (Pulse Missing)
Right-rear Magnetic Encoder
(Wheel Bearing) Malfunction (Pulse Missing)
Left-rear Magnetic Encoder
(Wheel Bearing) Malfunction (Pulse Missing)
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle at 20 km/h (13 mph) or more,
and go a distance of 100 m (328 ft) or more.
NOTE: Drive the vehicle on the road, not on a lift.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for loose terminals between the wheel
speed sensor 2P connector and the VSA modulator-
control unit 37P connector. Refer to intermittent
failures troubleshooting (see page 19-98).
5. Turn the ignition switch to LOCK (0). 6. Inspect the appropriate magnetic encoder for
damage, debris, and correct installation.
21-11 Right-front Remove the driveshaft outboard
joint from the
appropriate wheel
hub (see page 18-15).
22-11 Left-front
23-11 Right-rear Remove the hub
bearing unit
(see page 18-32).
24-11 Left-rear
Remove the debris from the magnetic
encoder, or replace the wheel bearing (front) or the
hub bearing unit (rear):
 Front: Replace the front wheel bearing (see page 18-18).
 Rear: Replace the rear hub bearing unit (see page 18-32).
Clean off debris from the appropriate
magnetic encoder surface on the wheel bearing or
the hub bearing unit, then go to step 1, and recheck.
If the DTC is still present, replace the appropriate
wheel bearing or hub bearing unit.
I s DT C 2 1-11, 2 2 -11, 2 3-11, and / or 2 4-11 indicated? I s t he magnet i c encod er sur f ace OK ?
08/08/21 15:05:53 61SNR030_190_0125
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