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Acura CSX. Manual - part 258

０７

０５

−

YES

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.

Wire side of female terminals

Is ther e about 5 V ?

Is ther e continuity?

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０６

０８

−

YES

14-114

Automatic Transmission

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 connector

terminal 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

Is ther e continuity?

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−

YES

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 (see page 11-7), then go to step 34. If the PCM
was substituted, go to step 1. If the HDS indicates
NOT COMPLETED, go to step 34.

Is DT C P07 21 or P07 22 indicated?

Does the HDS indicate PASSED?

Is DT C P07 21 or P07 22 indicated?

Does the HDS indicate PASSED?

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０１

ＳＮＲ９ＡＡ１Ｋ７７１０００９０７２３ＦＡＡＴ００

−

DTC P0723:

YES

14-116

Automatic Transmission

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 (G101), then go to step 23.

Terminal side of female terminals

Does the HDS indicate F AILED?

Ar e the connector ter minals OK ?

Is ther e continuity?

08/08/21 14:41:09 61SNR030_140_0118

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