2006 ACURA CSX sensor


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YES
NO
YES
NO
14-113
OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR
NC (BLK/WHT) SG1 (GRN/WHT) OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR
NC (BLK/WHT)
19. Measure the voltage between output shaft(countershaft) speed sensor connector terminals
No. 2 and No. 3.
Replace the output shaft (countershaft)
speed sensor (see page 14-227), then go to step 26.
Go to step 20. 20. Turn the ignition switch to LOCK (0).
21. Jump the SCS line with the HDS.
22. Disconnect PCM connector C (44P).
23. Check for continuity between output shaft
(countershaft) speed sensor connector terminal
No. 2 and body ground.
Repair short to body ground in the wire
between PCM connector terminal C43 and the
output shaft (countershaft) speed sensor, then go
to step 26.
Go to step 24.
(cont’d)
Wire side of female terminals Wire side of female terminals
Is t her e about 5 V ?Is there continuity?
08/08/21 14:41:08 61SNR030_140_0115
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DYNOMITE -2009-


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NO YES
NO
14-114Automatic Transmission
DTC Troubleshooting (cont’d)
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
CONNECTOR
PCM CONNECTOR C (44P)
SG1 (GRN/WHT)
SG1
(GRN/WHT) OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
CONNECTOR
NC
(BLK/WHT)
PCM CONNECTOR C (44P)
NC (BLK/WHT)
24. Check for continuity between PCM connectorterminal C14 and output shaft (countershaft) speed
sensor connector terminal No. 3.
Go to step 25.
Repair open in the wire between the output
shaft (countershaft) speed sensor connector and
PCM connector terminal C14, then go to step 26. 25. Check for continuity between PCM connector
terminal C43 and output shaft (countershaft) speed
sensor connector terminal No. 2.
Go to step 32.
Repair open in the wire between PCM
connector terminal C43 and the output shaft
(countershaft) speed sensor, then go to step 26.
Wire side of
female terminals Terminal side of
female terminals Wire side of
female terminals
Terminal side of
female terminals
I s t her e cont i nui t y ?
I s t her e cont i nui t y ?
08/08/21 14:41:08 61SNR030_140_0116
ProCarManuals.com
DYNOMITE -2009-

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14-115
26. Reconnect all connectors.
27. Turn the ignition switch to ON (II).
28. Clear the DTC with the HDS.
29. Start the engine, run the vehicle with the shift lever
in D at speeds over 20 km/h (12 mph) for at least
10 seconds. Slow down and stop the wheels.
30. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the output shaft (countershaft)
speed sensor and the PCM, then go to step 1.
Go to step 31.
31. Monitor the OBD STATUS for P0721 or P0722 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 30,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the output
shaft (countershaft) speed sensor and the PCM,
then go to step 1. If the HDS indicates NOT
COMPLETED, go to step 29.
32. Reconnect all connectors.
33. Update the PCM if it does not have the latest software (see page 11-227), or substitute a known-
good PCM (see page 11-7).
34. Start the engine, run the vehicle with the shift lever in D at speeds over 20 km/h (12 mph) for at least
10 seconds. Slow down and stop the wheels. 35. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the output shaft (countershaft)
speed sensor and the PCM. If the PCM was updated,
substitute a known-good PCM (see page 11-7), then
go to step 34. If the PCM was substituted, go to step
1.
Go to step 36.
36. Monitor the OBD STATUS for P0721 or P0722 in the DTCs MENU with the HDS.
If the PCM was updated, troubleshooting is
complete. If the PCM was substituted, replace the
original PCM (see page 11-228). If any other
Temporary DTCs or DTCs were indicated in step 35,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the output
shaft (countershaft) speed sensor and the PCM. If
the PCM was updated, substitute a known-good
PCM(seepage11-7),thengotostep34.IfthePCM
was substituted, go to step 1. If the HDS indicates
NOT COMPLETED, go to step 34.
I s DT C P07 21 or P07 22 i nd i cat ed ?
Does the HDS ind icate PASSED? I s DT C P07 21 or P07 22 i nd i cat ed ?
Does the HDS ind icate PASSED?
08/08/21 14:41:09 61SNR030_140_0117
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DYNOMITE -2009-


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DTC P0723:
YES
NO
YES
NO YES
NO
14-116Automatic Transmission
DTC Troubleshooting (cont’d)
PCM CONNECTOR C (44P)
LG2 (BRN/YEL)
LG1 (BRN/YEL)
Output Shaft (Countershaft)
Speed Sensor Intermittent Failure
NOTE:
 Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).
 This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the
transmission.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears with
the engine speed at 2,000 rpm or higher.
4. Monitor the OBD STATUS for P0723 in the DTCs MENU with the HDS.
Go to step 5.
If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals between the
output shaft (countershaft) speed sensor and the
PCM. If the HDS indicates NOT COMPLETED, go to
step 3.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the output shaft (countershaft) speed sensor connector, and inspect the connector and
connector terminals to be sure they are making
good contact.
Go to step 7.
Repair the connector terminals, then go to
step 23. 7. Jump the SCS line with the HDS.
8. Disconnect PCM connector C (44P).
9. Check for continuity between PCM connector
terminal C40 and body ground, and between PCM
connector terminal C44 and body ground.
Go to step 10.
Repair open in the wires between PCM
connector terminals C40, C44, and body ground
(G101) (see page 22-16), or repair poor body
ground (G 101), then go to step 23.
Terminal side of female terminals
Does the HDS ind icate F AILED?
Ar e t he connect or t er mi nal s OK ? Is there continuity?
08/08/21 14:41:09 61SNR030_140_0118
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DYNOMITE -2009-

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NO
14-117
OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR
VCC1 (YEL/RED) OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR
NC (BLK/WHT)
10. Connect PCM connector C (44P).
11. Turn the ignition switch to ON (II).
12. Measure the voltage between output shaft(countershaft) speed sensor connector terminal
No. 1 and body ground.
Go to step 13.
Go to step 19. 13. Measure the voltage between output shaft
(countershaft) speed sensor connector terminal
No. 2 and body ground.
Replace the output shaft (countershaft)
speed sensor (see page 14-227), then go to step 23.
Go to step 14.
(cont’d)
Wire side of female terminals Wire side of female terminals
Is t her e about 5 V ?
Is t her e about 5 V ?
08/08/21 14:41:09 61SNR030_140_0119
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DYNOMITE -2009-

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NO
14-118Automatic Transmission
DTC Troubleshooting (cont’d)
OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR
NC (BLK/WHT) OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
CONNECTOR
NC
(BLK/WHT)
PCM CONNECTOR C (44P)
NC (BLK/WHT)
14. Turn the ignition switch to LOCK (0).
15. Jump the SCS line with the HDS.
16. Disconnect PCM connector C (44P).
17. Check for continuity between output shaft(countershaft) speed sensor connector terminal
No. 2 and body ground.
Repair short to body ground in the wire
between PCM connector terminal C43 and the
output shaft (countershaft) speed sensor, then go
to step 23.
Go to step 18. 18. Check for continuity between PCM connector
terminal C43 and output shaft (countershaft) speed
sensor connector terminal No. 2.
Go to step 29.
Repair open in the wire between PCM
connector terminal C43 and the output shaft
(countershaft) speed sensor, then go to step 23.
Wire side of female terminals Wire side of
female terminals
Terminal side of
female terminals
Is there continuity? Is there continuity?
08/08/21 14:41:10 61SNR030_140_0120
ProCarManuals.com
DYNOMITE -2009-

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YES
NO YES
NO
YES
NO
14-119
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
CONNECTOR
VCC1 (YEL/RED)
PCM CONNECTOR C (44P)
VCC1
(YEL/RED)
19. Turn the ignition switch to LOCK (0).
20. Jump the SCS line with the HDS.
21. Disconnect PCM connector C (44P).
22. Check for continuity between PCM connector terminal C13 and output shaft (countershaft) speed
sensor connector terminal No. 1.
Go to step 29.
Repair open in the wire between PCM
connector terminal C13 and the output shaft
(countershaft) speed sensor, then go to step 23. 23. Reconnect all connectors.
24. Turn the ignition switch to ON (II).
25. Clear the DTC with the HDS.
26. Test-drive the vehicle with the shift lever in D at
speeds over 20 km/h (12 mph), and let the
transmission shift through all five gears.
27. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the output shaft (countershaft)
speed sensor and the PCM, then go to step 1.
Go to step 28.
28. Monitor the OBD STATUS for P0723 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 27,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the output
shaft (countershaft) speed sensor and the PCM,
then go to step 1. If the HDS indicates NOT
COMPLETED, go to step 26.
(cont’d)
Wire side of
female terminalsTerminal side of
female terminals
Is there continuity? Is DTC P0723 indicated?
Does the HDS ind icate PASSED?
08/08/21 14:42:30 61SNR030_140_0121
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DYNOMITE -2009-

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YES
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YES
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YES
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YES
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YES
NO
DTC P0731:
14-12014-120Automatic Transmission
DTC Troubleshooting (cont’d)
29. Reconnect all connectors.
30. Update the PCM if it does not have the latest
software (see page 11-227), or substitute a known-
good PCM (see page 11-7).
31. Test-drive the vehicle with the shift lever in D at speeds over 20 km/h (12 mph), and let the
transmission shift through all five gears.
32. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the output shaft (countershaft)
speed sensor and the PCM. If the PCM was updated,
substitute a known-good PCM (see page 11-7), then
go to step 31. If the PCM was substituted, go to step
1.
Go to step 33.
33. Monitor the OBD STATUS for P0723 in the DTCs MENU with the HDS.
If the PCM was updated, troubleshooting is
complete. If the PCM was substituted, replace the
original PCM (see page 11-228). If any other
Temporary DTCs or DTCs were indicated in step 32,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the output
shaft (countershaft) speed sensor and the PCM. If
the PCM was updated, substitute a known-good
PCM (see page 11-7), then go to step 31. If the PCM
was substituted, go to step 1. If the HDS indicates
NOT COMPLETED, go to step 31. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).
1. Warm up the engine to normal operating temperature (the radiator fan comes on).
2. Make sure that the transmission is filled to the proper level, and check for fluid leaks.
3. Drain the ATF (see step 3 on page 14-232) through a strainer. Inspect the strainer for metal debris or
excessive clutch material.
Replace the transmission, then go to step 12.
Replace the ATF (see page 14-232), then go to
step 4.
4. Test stall speed in D (see page 14-210).
Go to step 5.
Shift valves A and D are stuck. Repair these
valves and the hydraulic circuit, or replace the
transmission, then go to step 12.
5. Measure the line pressure (see page 14-211).
Go to step 6.
Repair the ATF pump and the regulator valve,
or replace the transmission, then go to step 12.Problem in 1st Clutch and 1st
Clutch Hydraulic Circuit (1st Gear Incorrect
Ratio)
Is DTC P0723 indicated?
Does the HDS ind icate PASSED? Does t he st r ai ner hav e met al d ebr i s or ex cessi v e
clutch mater ial?
Is t he st al l speed w i t hi n t he ser v i ce l i mi t s?
Is the line pressure within service limit?
08/08/21 14:42:30 61SNR030_140_0122
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DYNOMITE -2009-