ACURA CSX 2006 Service Repair Manual

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YES
NO
YES
NO
DTC 12-11:
DTC 14-11:
DTC 16-11:
DTC 18-11:
19-6819-68ABS 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 ABS
modulator-control unit 25P connector. If necessary,
substitute a known-good ABS modulator-control
unit (see page 19-90), and retest.
Replace the original wheel speed sensor
(see page 19-92). 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 19-69). 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 ABS modulator-control unit 25P connector.
Refer to intermittent failures troubleshooting
(see page 19-50).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 15:03:13 61SNR030_190_0068
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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:
19-6919-69
5. Turn the ignition switch to LOCK (0).
6. Check that the appropriate wheel speed sensor isproperly mounted (see page 19-92).
12-11 Right-front
14-11 Left-front
16-11 Right-rear
18-11 Left-rear
Check for loose terminals in the ABS
modulator-control unit 25P connector. If necessary,
substitute a known-good ABS modulator-control
unit (see page 19-90), and retest.
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-92). 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 ABS modulator-
control unit 25P connector. Refer to intermittent
failures troubleshooting (see page 19-50).
5. Turn the ignition switch to LOCK (0).
6. Disconnect the ABS modulator-control unit 25P connector (see step 2 on page 19-90).
(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 15:03:13 61SNR030_190_0069
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DTC YES
NO
ABS Modulator-control Unit 25P
Connector Terminal
Appropriate Terminal Other Terminals
19-70ABS Components
DTC Troubleshooting (cont’d)
ABS MODULATOR-CONTROL UNIT 25P CONNECTOR
DTC 14-12 DTC 12-12 RR-GND (BLU)
RL-GND (PUR)
FR-GND (PNK) RR-GND (BLU)
RL-GND (PUR)
FR-GND (PNK)
FR-GND (PNK) RL-GND (PUR)
FL-GND (RED)
RR-GND (BLU)
RR-GND (BLU)
FL-GND (RED)
DTC 18-12 DTC 16-12 FL-GND (RED)
FL-GND (RED)
RL-GND (PUR)
FR-GND (PNK)
7. Check for continuity between the appropriate ABS modulator-control unit 25P connector wheel speed
sensor GND terminals (see table).
12-12 No. 18
14-12 No. 3
16-12 No. 15
18-12 No. 5 Repair short in the wires between the
appropriate wheel speed sensor and the ABS
modulator-control unit.
Check for loose terminals in the ABS
modulator-control unit 25P connector. If necessary,
substitute a known-good ABS modulator-control
unit (see page 19-90), and retest.
No. 3 No. 15 No. 5
No. 18 No. 15 No. 5
No. 18 No. 3 No. 5
No.18No.3No.15
Wire side of female terminals
Is there continuity?
08/08/21 15:03:14 61SNR030_190_0070
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DTC 12-21:
DTC 14-21:
DTC 16-21:
DTC 18-21: DTC 12-22:
DTC 14-22:
DTC 16-22:
DTC 18-22:
YES
NO
DTC Appropriate Wheel Speed Sensor
YES
NO YES
NO
DTC Appropriate Wheel Speed Sensor
YES
NO
19-7119-71
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 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)
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 ABS 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 ABS modulator-
control unit 25P connector. Refer to intermittent
failures troubleshooting (see page 19-50).
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 19-92).
12-21 Right-front
14-21 Left-front
16-21 Right-rear
18-21 Left-rear
Replace the appropriate wheel speed sensor
(see page 19-92).
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-92). 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 ABS 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 ABS modulator-
control unit 25P connector. Refer to intermittent
failures troubleshooting (see page 19-50).
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 19-92).
12-22 Right-front
14-22 Left-front
16-22 Right-rear
18-22 Left-rear
Replace the appropriate wheel speed sensor
(see page 19-92).
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-92).
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 15:03:14 61SNR030_190_0071
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DTC 12-23:
DTC 14-23:
DTC 16-23:
DTC 18-23: DTC 21-11:
DTC 22-11:
DTC 23-11:
DTC 24-11:
YES
NO
DTC Appropriate Wheel Speed Sensor
YES
NO YES
NO
19-7219-72ABS Components
DTC Troubleshooting (cont’d)
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)) 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. 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 ABS 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 ABS modulator-
control unit 25P connector. Refer to intermittent
failures troubleshooting (see page 19-50).
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 19-92).
12-23 Right-front
14-23 Left-front
16-23 Right-rear
18-23 Left-rear
Replace the appropriate wheel speed sensor
(see page 19-92).
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-92). 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 ABS modulator-
control unit 25P connector. Refer to intermittent
failures troubleshooting (see page 19-50).
5. Turn the ignition switch to LOCK (0).
Are all f our values the same?
Is t he w heel speed sensor i nst al l at i on OK ? I s DT C 2 1-11, 2 2 -11, 2 3-11, and / or 2 4-11
indicated?
08/08/21 15:03:14 61SNR030_190_0072
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DTC Appropriate MagneticEncoder Note
YES
NO Subcode Malfunction Note (DTC)
DTC 31-xx :
DTC 32-xx :
DTC 33-xx :
DTC 34-xx :
DTC 35-xx :
DTC 36-xx :
DTC 37-xx :
DTC 38-xx :
19-7319-73
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. :Any two-character subcode (see table)
01 Solenoid Initial Pulse 31-01, 32-01, 33-01,
34-01, 35-01, 36-01,
37-01, 38-01
21 Solenoid Pulse 31-21, 32-21, 33-21, 34-21, 35-21, 36-21,
37-21, 38-21
22 Solenoid Speculative 31-22, 32-22, 33-22,
34-22, 35-22, 36-22,
37-22, 38-22
23 Solenoid Stuck ON 31-23, 32-23, 33-23,
34-23, 35-23, 36-23,
37-23, 38-23
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.
(cont’d)ABS Right-front Inlet Solenoid
Valve Malfunction
ABS Right-front Outlet Solenoid
Valve Malfunction
ABS Left-front Inlet Solenoid
Valve Malfunction
ABS Left-front Outlet Solenoid
Valve Malfunction
ABS Right-rear Inlet Solenoid
Valve Malfunction
ABS Right-rear Outlet Solenoid
Valve Malfunction
ABS Left-rear Inlet Solenoid
Valve Malfunction
ABS Left-rear Outlet Solenoid
Valve Malfunction
I s t he magnet i c encod er sur f ace OK ?
08/08/21 15:03:14 61SNR030_190_0073
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YES
NO
DTC Appropriate Wheel
YES
NO
YES
NO
DTC 41-21:
DTC 42-21:
DTC 43-21:
DTC 44-21:
19-7419-74 ABS Components
DTC Troubleshooting (cont’d)
4. Check for DTCs with the HDS.
Replace the ABS modulator-control unit
(see page 19-90).
Intermittent failure, the system is OK at this
time. The DTCs may be indicated under these conditions:
 The vehicle goes into a spin.
 The ABS continues to operate for a long time.
 Snow, dirt, or debris build-up on the wheel speed sensor or magnetic encoder.
 Misadjusted brake pedal position switch.
 Contaminated brake fluid.
1. Raise the vehicle, and support it with safety stands in the proper locations (see page 1-11).
2. Turn the appropriate wheel by hand.
41-21 Right-front
42-21 Left-front
43-21 Right-rear
44-21 Left-rear
Repair the brake drag.
Go to step 3.
3. Check that the appropriate wheel speed sensor is properly mounted (see page 19-92).
Go to step 4.
Reinstall the wheel speed sensor, and check
the mounting position (see page 19-92).Right-front Wheel Lock
Left-front Wheel Lock
Right-rear Wheel Lock
Left-rear Wheel Lock
Is DT C 31-xx, 32-xx, 33-xx, 34-xx, 35-xx, 36-xx, 37 -x x , or 38-x x i nd i cat ed ?
Is there brake drag?Is t he w heel speed sensor i nst al l at i on OK ?
08/08/21 15:03:15 61SNR030_190_0074
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YES
NO
YES
NO
DTC 51-11:
DTC 51-13:
19-7519-75
4. Turn the ignition switch to ON (II).
5. Clear the DTC with the HDS.
6. Test-drive the vehicle at 10 km/h (7 mph) for20 seconds or more.
NOTE: Drive the vehicle on the road, not on a lift.
7. Check for DTCs with the HDS.
Check for loose terminals between the wheel
speed sensor 2P connector and the ABS modulator-
control unit 25P connector. If necessary, substitute
a known-good ABS modulator-control unit
(see page 19-90), and retest.
If any other DTCs are indicated, go to the
indicated DTCs troubleshooting. If DTCs are not
indicated, intermittent failure, the system is OK at
the time. 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. Wait 5 seconds.
5. Operate any one of the four solenoids, as listed, in the ABS FUNCTION TEST five times with the HDS.
-LFT FT SOLENOID
-RT FT SOLENOID
-LFT REAR SOLENOID
-RT REAR SOLENOID
6. Check for DTCs with the HDS.
Replace the ABS modulator-control unit
(see page 19-90).
Intermittent failure, the system is OK at this
time.Motor Lock
Motor Drive Circuit Malfunction
Is DT C 41-21, 42-21, 43-21, or 44-21 indicated?
I s DT C 5 1-11 or 5 1-13 i nd i cat ed ?
08/08/21 15:03:15 61SNR030_190_0075
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DTC 51-12:
YES
NO
YES
NO YES
NO
19-76ABS Components
DTC Troubleshooting (cont’d)
ABS MODULATOR-CONTROL UNIT 25P CONNECTOR
MR B (RED)
Motor Drive 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 toON (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 at the ABS
modulator-control unit 25P connector. Refer to
intermittent failures troubleshooting (see page
19-50).
5. Turn the ignition switch to LOCK (0).
6. Check the No. 3 (30 A) fuse in the under-hood fuse/ relay box.
Go to step 7.
Reinstall the checked fuse, then go to step 14.
7. Disconnect the ABS modulator-control unit 25P connector (see step 2 on page 19-90). 8. Check for continuity between ABS modulator-
control unit 25P connector terminal No. 9 and body
ground.
Repair short to body ground in the wire
between the No. 3 (30 A) fuse in the under-hood
fuse/relay box and the ABS modulator-control
unit.
Install a new No. 3 (30 A) fuse in the under-
hood fuse/relay box, then go to step 9.
Wire side of female terminals
I s DT C 5 1-12 i nd i cat ed ?
Isthefuseblown? Is there continuity?
08/08/21 15:03:15 61SNR030_190_0076
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YES
NO
YES
NO
19-77
ABS MODULATOR-CONTROL UNIT 25P CONNECTORMR B (RED)
9. Reconnect the ABS modulator-control unit 25Pconnector.
10. Turn the ignition switch to ON (II).
11. Clear the DTC with the HDS.
12. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
13. Check for DTCs with the HDS.
Replace the ABS modulator-control unit
(see page 19-90).
Troubleshooting is complete. 14. Disconnect the ABS modulator-control unit 25P
connector (see step 2 on page 19-90).
15. Measure the voltage between ABS modulator- control unit 25P connector terminal No. 9 and body
ground.
Check for loose terminals in the ABS
modulator-control unit 25P connector. If necessary,
substitute a known-good ABS modulator-control
unit (see page 19-90), and retest.
Repair open in the wire between the No. 3
(30 A) fuse in the under-hood fuse/relay box and
the ABS modulator-control unit.
Wire side of female terminals
I s DT C 5 1-12 i nd i cat ed ?
Is there battery voltage?
08/08/21 15:03:15 61SNR030_190_0077
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