Acura CSX. Manual — part 415
04
SNR9AC7D52100000000FAAT04
−
−
−
−
−
−
VSA activation indicator does not go off, and
no DTCs are stored
YES
NO
YES
NO
YES
NO
19-165
Symptom Troubleshooting
VSA OFF SWITCH 5P CONNECTOR
BRN
1. Turn the ignition switch to ON (II).
2. Check the VSA activation indicator for several
seconds when the ignition switch is turned to
ON (II).
The system is OK at this time.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the VSA OFF switch 5P connector
(see page 19-170).
5. Check the VSA OFF switch (see page 19-170).
Go to step 6.
Replace the VSA OFF switch (see page
19-170).
6. Disconnect the gauge control module (tach) 36P
connector.
7. Check for continuity between VSA OFF switch 5P
connector terminal No. 2 and body ground.
Repair short to body ground in the wire
between the gauge control module (tach) and the
VSA OFF switch.
Substitute a known-good gauge control
module (tach) (see page 22-277), then go to step 1,
and recheck. If it is OK, replace the original gauge
control module (tach) (see page 22-277).
Wire side of female terminals
Does the indicator come on then go of f ?
Is the V SA OF F switch OK ?
Is ther e continuity?
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*01
*02
SNR9AC7D52100000000FAAT05
−
−
−
−
−
−
−
−
ABS indicator, brake system indicator, and
VSA indicator do not go off
YES
NO
YES
NO
YES
NO
YES
NO
19-166
VSA System Components
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
IG1 (GRY)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
IG1 (GRY)
1. Turn the ignition switch to LOCK (0).
2. Check the No. 4 (7.5 A) fuse in the under-dash fuse/
relay box.
Go to step 3.
Reinstall the checked fuse, then go to step 9.
3. Disconnect the VSA modulator-control unit 37P
connector (see step 2 on page 19-171).
4. Disconnect the yaw rate-lateral acceleration sensor
5P connector (see page 19-169).
5. Check for continuity between VSA modulator-
control unit 37P connector terminal No. 28 and
body ground.
Repair short to body ground in the wire
between the No. 4 (7.5 A) fuse in the under-dash
fuse/relay box and the VSA modulator-control unit
or the yaw rate-lateral acceleration sensor.
Install a new No. 4 (7.5 A) fuse in the under-
dash fuse/relay box, then go to step 6.
6. Reconnect all connectors.
7. Turn the ignition switch to ON (II).
8. Check the ABS indicator, the brake system
indicator and the VSA indicator for several seconds
when the ignition switch is tuned to ON (II).
Troubleshooting is complete.
Replace the VSA modulator-control unit
(see page 19-171).
9. Disconnect the VSA modulator-control unit 37P
connector (see step 2 on page 19-171).
10. Turn the ignition switch to ON (II).
11. Measure the voltage between VSA modulator-
control unit 37P connector terminal No. 28 and
body ground.
Go to step 12.
Repair open in the wire between the No. 4
(7.5 A) fuse in the under-dash fuse/relay box and
the VSA modulator-control unit.
12. Turn the ignition switch to LOCK (0).
Wire side of female terminals
Wire side of female terminals
Is the f use blown?
Is ther e continuity?
Does the indicator s come on then go of f ?
Is ther e batter y voltage?
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*03
*04
07
+
−
−
−
−
−
−
YES
NO
YES
NO
Sign
YES
NO
VSA Modulator-
control Unit 37P
Connector Terminal
Gauge Control
Module (Tach) 36P
Connector Terminal
19-167
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
GND (BLK)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
FSR
B (WHT)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
CAN-L (RED)
CAN-L (RED)
CAN-H (WHT)
CAN-H (WHT)
GAUGE CONTROL MODULE (TACH) 36P CONNECTOR
13. Check for continuity between VSA modulator-
control unit 37P connector terminal No. 36 and
body ground.
Go to step 14.
Repair open in the wire between the VSA
modulator-control unit and body ground (G202).
14. Measure the voltage between VSA modulator-
control unit 37P connector terminal No. 13 and
body ground.
Go to step 15.
Repair open in the wire between the No. 3
(40 A) fuse in the under-hood fuse/relay box and
the VSA modulator-control unit.
15. Disconnect the gauge control module (tach) 36P
connector.
16. Check for continuity between VSA modulator-
control unit 37P connector terminal and gauge
control module (tach) 36P connector terminal (see
table).
CAN-L
No. 1
No. 19
CAN-H
No. 15
No. 1
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.
Repair open in the wire between the gauge
control module (tach) and the VSA modulator-
control unit.
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 batter y voltage?
Is ther e continuity?
08/08/21 15:06:45 61SNR030_190_0167
01
SNR9AC7D52100057091KBAT00
19-168
VSA System Components
Steering Angle Sensor Replacement
A
B
C
NOTE: Do not damage or drop the combination switch as the steering angle sensor is sensitive to shock and vibration.
1. With the wheels in the straight-ahead position and the steering wheel centered, remove the steering wheel
(see page 17-6).
2. Remove the steering column covers (see page 17-9) and the cable reel (see page 24-200).
3. Remove the combination switch assembly (see step 11 on page 17-11).
4. Remove the combination light switch (A) and the wiper/washer switch (B) from the combination switch body
assembly (C).
5. Install the combination switch body assembly in the reverse order of removal.
NOTE:
• Do not remove the steering angle sensor from the combination switch body.
• When installing the cable reel, set the turn signal canceling sleeve position so that the arrow points straight up
(see page 24-201).
• When installing the combination switch, tighten the mounting screws to the specified torque and sequence
shown (see page 17-12).
08/08/21 15:06:45 61SNR030_190_0168
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