2006 ACURA CSX Service Repair Manual

oil ECO mode fuel lumbar support wheelbase CD changer

Page 1649 of 2893

ACURA CSX 2006 Service Repair Manual
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Sign ECM/PCM
Connector A
(44P) Terminal
YES
NO YES
NO
VSA Modulator-
control Unit 37P
Connector Terminal
DTC 86-11:
DTC 86-21:
D

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Sign ECM/PCM
Connector A
(44P) Terminal
YES
NO YES
NO
VSA Modulator-
control Unit 37P
Connector Terminal
DTC 86-11:
DTC 86-21:
DTC 86-22:
DTC 86-23:
DTC 86-24:
DTC 86-25:
DTC 86-41:
19-15719-157
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
CAN-L (RED)
CAN-H
(WHT) CAN-L (RED)
CAN-H (WHT)
ECM/PCM CONNECTOR A (44P)
9. Check for continuity between the VSA modulator-control unit 37P connector terminal and ECM/PCM
connector A (44P) terminal (see table).
CAN-L No. 1 No. 37
CAN-H No. 15 No. 36
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 ECM/
PCM and the VSA modulator-control unit. 1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle at 10 km/h (7 mph) or more.
NOTE: Drive the vehicle on the road, not on a lift.
4. Check for DTCs with the HDS.
If DTC 86-01 is indicated at the same time, do
the DTC 86-01 troubleshooting first (see page
19-156). If DTC 86-01 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 was an intermittent failure, the
system is OK at this time. Check for loose terminals
between ECM/PCM connector A (44P) and the VSA
modulator-control unit 37P connector. Refer to
intermittent failures troubleshooting (see page
19-98).
(cont’d)F-CAN Communication with
ECM/PCM Malfunction
F-CAN Communication with
Engine Malfunction
F-CAN Communication with
Engine Malfunction
F-CAN Communication with
Engine Malfunction
F-CAN Communication with
Engine Malfunction
F-CAN Communication with
Engine Malfunction
F-CAN Communication with
EAT Malfunction
Wire side of female terminals
Terminal side of female terminals
Is there continuity? Is DT C 86-11, 86-21, 86-22, 86-23, 86-24, 86-25,and / or 86-41 i nd i cat ed ?
08/08/21 15:06:42 61SNR030_190_0157
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Page 1650 of 2893

ACURA CSX 2006 Service Repair Manual
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Sign ECM/PCM
Connector A
(44P) Terminal
YES
NO YES
NO
VSA Modulator-
control Unit 37P
Connector Terminal
19-158 VSA System Components
DTC Troubleshooting (cont’d)
VSA MODULATOR-C

Page 1651 of 2893

ACURA CSX 2006 Service Repair Manual
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DTC 86-31:
YES
NO
YES
NO Sign
YES
NO
VSA Modulator- control Unit 37P
Connector Terminal Gauge Control
Module (Tach) 36P

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DTC 86-31:
YES
NO
YES
NO Sign
YES
NO
VSA Modulator- control Unit 37P
Connector Terminal Gauge Control
Module (Tach) 36P
Connector Terminal
19-159
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
CAN-L (RED)CAN-L (RED)
CAN-H (WHT) CAN-H (WHT)
GAUGE CONTROL MODULE (TACH) 36P CONNECTOR
F-CAN Communication with
Gauge Control Module 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.
If DTC 86-01 is indicated at the same time, do
the DTC 86-01 troubleshooting first (see page
19-156). If DTC 86-01 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 was an intermittent failure, the
system is OK at this time. Check for loose terminals
between the gauge control module (tach) 36P
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), then turn it to ON (II) again.
Go to step 6.
Do the gauge control module troubleshooting
(see page 22-241).
6. Turn the ignition switch to LOCK (0).
7. Disconnect the gauge control module (tach) 36P connector. 8. Disconnect the VSA modulator-control unit 37P
connector (see step 2 on page 19-171).
9. Check for continuity between the 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 gauge
control module (tach) 36P connector. If necessary,
substitute a known-good gauge control module
(tach), then go to step 1, and recheck. If no DTCs
are indicated, replace the original gauge control
module (tach) (see page 22-277). If DTC 86-31
resets, replace the VSA modulator-control unit
(see page 19-171).
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
Is DTC 86-31 indicated?
Does t he gauge i nd i cat or s come on? Is there continuity?
08/08/21 15:06:42 61SNR030_190_0159
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Page 1652 of 2893

ACURA CSX 2006 Service Repair Manual
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DTC 86-71:
YES
NO Sign
YES
NO
VSA Modulator- control Unit 37P
Connector Terminal Yaw Rate-lateral
Acceleration Sensor 5P Connect

Page 1653 of 2893

ACURA CSX 2006 Service Repair Manual
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YES
NO
YES
NO
19-161
YAW RATE-LATERAL ACCELERATION SENSOR
5P CONNECTOR
YEL YAW RATE-LATERAL ACCELERATION SENSOR
5P CONNECTOR
BLK
9. Turn the ignition switch to ON (II).
10. Me

Page 1654 of 2893

ACURA CSX 2006 Service Repair Manual (#
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DTC 107-22: DTC 108-21:
YES
NO YES
NO
YES
NO
19-16219-162VSA System Compone

Page 1655 of 2893

ACURA CSX 2006 Service Repair Manual

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DTC 112-01:
YES
NO YES
NO
YES
NO
19-163
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
FSR B (WHT)
VSA MODULATOR-

Page 1656 of 2893

ACURA CSX 2006 Service Repair Manual (#
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DTC 121-xx :
DTC 122-xx :
DTC 123-xx :
DTC 124-xx :
DTC Sectional Valve YES
NO
19-164VSA System Components
DTC Troubleshooting (cont’d)
VSA

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