Acura CSX. Manual — part 407
02
03
04
−
−
−
−
−
−
Sign
YES
NO
YES
NO
YES
NO
VSA Modulator-
control Unit 37P
Connector Terminal
Steering Angle
Sensor 5P
Connector Terminal
19-133
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
STEERING ANGLE SENSOR 5P CONNECTOR
STR-B
(PUR)
SVCC
(ORN) SGND (BRN)
SVCC (ORN)
SGND (BRN)
STR-B
(PUR)
STR-A (GRN)
STR-A (GRN)
STEERING ANGLE SENSOR 5P CONNECTOR
STR-A (GRN)
STR-B (PUR)
STEERING ANGLE SENSOR 5P CONNECTOR
STR-A
(GRN)
STR-B (PUR)
SVCC
(ORN)
7. Check for continuity between the VSA modulator-
control unit 37P connector terminal and the
steering angle sensor 5P connector terminal
individually.
STR-A
No. 34
No. 2
STR-B
No. 17
No. 4
SVCC
No. 7
No. 5
SGND
No. 10
No. 1
Go to step 8.
Repair open in the wire between the steering
angle sensor and the VSA modulator-control
unit.
8. Check for continuity between steering angle sensor
5P connector terminals No. 2 and No. 4.
Repair short in the wires between the
steering angle sensor and the VSA modulator-
control unit.
Go to step 9.
9. Check for continuity between steering angle sensor
5P connector terminals No. 5 and No. 2, and
between No. 5 and No. 4 individually.
Repair short in the wires between the
steering angle sensor and the VSA modulator-
control unit.
Go to step 10.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e continuity?
Is ther e continuity?
08/08/21 15:05:55 61SNR030_190_0133
05
06
−
−
−
−
YES
NO
YES
NO
19-134
VSA System Components
STEERING ANGLE SENSOR 5P CONNECTOR
STR-A (GRN)
STR-B (PUR)
SGND
(BRN)
STEERING ANGLE SENSOR 5P CONNECTOR
STR-A (GRN)
STR-B (PUR)
10. Check for continuity between steering angle sensor
5P connector terminals No. 1 and No. 2, and
between No. 1 and No. 4 individually.
Repair short in the wires between the
steering angle sensor and the VSA modulator-
control unit.
Go to step 11.
11. Turn the ignition switch to ON (II).
12. Measure the voltage between body ground and
steering angle sensor 5P connector terminals No. 2
and No. 4 individually.
Repair short to power in the wire between
the steering angle sensor and the VSA modulator-
control unit.
Replace the steering angle sensor (see page
19-168).
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e 0.1 V or mor e?
08/08/21 15:05:55 61SNR030_190_0134
SNR9AC7K801000R2723FAAT00
SNR9AC7K801000R2724FAAT00
−
−
−
−
DTC 27-23:
DTC 27-24:
YES
NO
YES
NO
19-135
19-135
Steering Angle Sensor Counter
Malfunction
Steering Angle Sensor Exchange
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. Turn the steering wheel from lock to lock.
5. Check for DTCs with the HDS.
Replace the steering angle sensor (see page
19-168).
Intermittent failure, the system is OK at this
time.
1. Turn the ignition switch to ON (II), and set the front
wheels to the straight ahead position.
2. Turn the steering wheel one turn to the left. Check
the STEERING ANGLE in the VSA DATA LIST with
the HDS.
Intermittent failure, the system is OK at this
time.
Replace the steering angle sensor (see page
19-168).
Is DT C 27 -23 indicated?
Is ther e about 288 degr ees to 432 degr ees
positive?
08/08/21 15:05:55 61SNR030_190_0135
SNR9AC7K801000R31XXFAAT00
−
−
DTC 31-xx :
DTC 32-xx :
DTC 33-xx :
DTC 34-xx :
DTC 35-xx :
DTC 36-xx :
DTC 37-xx :
DTC 38-xx :
Subcode
Malfunction
Note (DTC)
YES
NO
19-136
VSA System Components
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
: 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.
4. Check for DTCs with the HDS.
Replace the VSA modulator-control unit
(see page 19-171).
Intermittent failure, the system is OK at this
time.
Is DT C 31-xx, 32-xx, 33-xx, 34-xx, 35-xx, 36-xx,
37 -xx, or 38-xx indicated?
08/08/21 15:05:56 61SNR030_190_0136
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