Acura CSX. Manual — part 391
SNR9AC6K701000R1211FAAT00
−
−
−
−
YES
NO
YES
NO
DTC 12-11:
DTC 14-11:
DTC 16-11:
DTC 18-11:
19-68
19-68
ABS Components
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
Is DT C indicated that is indicated in step 4?
Is DT C 12-11, 14-11, 16-11, and/ or 18-11
indicated?
08/08/21 15:03:13 61SNR030_190_0068
SNR9AC6K701000R1212FAAT10
−
−
−
−
DTC
Appropriate Wheel Speed Sensor
YES
NO
YES
NO
DTC 12-12:
DTC 14-12:
DTC 16-12:
DTC 18-12:
19-69
19-69
5. Turn the ignition switch to LOCK (0).
6. Check that the appropriate wheel speed sensor is
properly 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).
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 the wheel speed sensor installation OK ?
Is DT C 12-12, 14-12, 16-12, and/ or 18-12
indicated?
08/08/21 15:03:13 61SNR030_190_0069
*01
−
−
DTC
YES
NO
ABS Modulator-control Unit 25P
Connector Terminal
Appropriate
Terminal
Other Terminals
19-70
ABS Components
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. 18
No. 3
No. 15
Wire side of female terminals
Is ther e continuity?
08/08/21 15:03:14 61SNR030_190_0070
SNR9AC6K701000R1221FAAT00
SNR9AC6K701000R1222FAAT00
−
−
−
−
−
−
−
−
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
19-71
19-71
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).
Ar e all f our values the same?
Is the wheel speed sensor installation OK ?
Ar e all f our values the same?
Is the wheel speed sensor installation OK ?
08/08/21 15:03:14 61SNR030_190_0071
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