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Acura CSX. Manual - part 273

＊０２

＊０３

−

YES

14-173

PCM CONNECTOR B (44P)

SHIFT SOLENOID WIRE
HARNESS CONNECTOR

SHB (GRN/WHT)

SHIFT SOLENOID WIRE
HARNESS CONNECTOR

SHIFT SOLENOID
VALVE B
CONNECTOR

SHB (ORN)

12. Disconnect the shift solenoid wire harness

connector.

13. Check for continuity between PCM connector

terminal B11 and shift solenoid wire harness
connector terminal No. 2.

Go to step 14.

Repair open in the wire between PCM

connector terminal B11 and the shift solenoid wire
harness connector, then go to step 16.

14. Remove the shift solenoid wire harness (see page

14-217).

15. Check for continuity between shift solenoid wire

harness connector terminal No. 2 and the shift
solenoid valve B connector terminal.

Replace shift solenoid valve B (see page

14-217), then go to step 19.

Replace the shift solenoid wire harness

(see page 14-217), then go to step 19.

Terminal side of
female terminals

Wire side of
female terminals

Terminal side of
male terminals

Wire side of
female terminals

Is ther e continuity?

08/08/21 14:44:01 61SNR030_140_0175

−

YES

14-174

Automatic Transmission

16. Reconnect all connectors.

17. Turn the ignition switch to ON (II).

18. Clear the DTC with the HDS.

19. Start the engine with the shift lever in P, and wait

for at least 1 second. Test-drive the vehicle in D,
and let the transmission shift through 1st to 3rd
gears, then drive the vehicle in 3rd gear for at least
1 second.

20. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals between shift solenoid valve B and the
PCM, then go to step 1.

Go to step 21.

21. Monitor the OBD STATUS for P0977 in the DTCs

MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.

If the HDS indicates FAILED, check for poor

connections or loose terminals between shift
solenoid valve B and the PCM, then go to step 1. If
the HDS indicates NOT COMPLETED, go to step 19.

22. Reconnect all connectors.

23. 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).

24. Start the engine with the shift lever in P, and wait

for at least 1 second. Test-drive the vehicle in D,
and let the transmission shift through 1st to 3rd
gears, then drive the vehicle in 3rd gear for at least
1 second.

25. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals between shift solenoid valve B and the
PCM. If the PCM was updated, substitute a known-
good PCM (see page 11-7), then go to step 24. If the
PCM was substituted, go to step 1.

Go to step 26.

26. Monitor the OBD STATUS for P0977 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 25,
go to the indicated DTC’s troubleshooting.

If the HDS indicates FAILED, check for poor

connections or loose terminals between shift
solenoid valve B and the PCM. If the PCM was
updated, substitute a known-good PCM (see page
11-7), then go to step 24. If the PCM was substituted,
go to step 1. If the HDS indicates NOT COMPLETED,
go to step 24.

Is DT C P097 7 indicated?

Does the HDS indicate PASSED?

Is DT C P097 7 indicated?

Does the HDS indicate PASSED?

08/08/21 14:44:01 61SNR030_140_0176

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ＳＮＲ９ＡＡ１Ｋ７７１０００９０９７９ＦＡＡＴ００

−

DTC P0979:

YES

14-175

PCM CONNECTORS

B (44P)

C (44P)

LG1 (BRN/YEL)

SHC
(GRN)

PCM CONNECTORS

B (44P)

C (44P)

LG1 (BRN/YEL)

SHC
(GRN)

Short in Shift Solenoid Valve C

Circuit

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 in 1st gear with the shift lever

in D for at least 1 second.

4. Check for Temporary DTCs or DTCs with the HDS.

Go to step 8.

Go to step 5.

5. Select Shift Solenoid Valve C in the Miscellaneous

Test Menu, and test shift solenoid valve C with the
HDS.

Go to step 6.

Go to step 8.

6. Test-drive the vehicle in 1st gear with the shift lever

in D for at least 1 second.

7. Monitor the OBD STATUS for P0979 in the DTCs

MENU with the HDS.

Go to step 8.

If the HDS indicates PASSED, intermittent

failure, the system is OK at this time. Check for
intermittent short to body ground in the wire
between shift solenoid valve C and the PCM. If the
HDS indicates NOT COMPLETED, go to step 5.

8. Turn the ignition switch to LOCK (0).

9. Jump the SCS line with the HDS.

10. Disconnect PCM connectors B (44P) and C (44P).

11. Measure the resistance between PCM connector

terminals B20 and C40.

Go to step 12.

Go to step 22.

12. Disconnect the shift solenoid wire harness

connector.

13. Check for continuity between PCM connector

terminals B20 and C40.

Repair short to body ground in the wire

between PCM connector terminal B20 and the shift
solenoid wire harness connector, then go to step
16.

Go to step 14.

Terminal side of female terminals

Is DT C P097 9 indicated?

Is a clicking sound hear d?

Does the HDS indicate F AILED?

Is ther e less than 12

Is ther e continuity?

08/08/21 14:44:02 61SNR030_140_0177

−

YES

14-176

Automatic Transmission

14. Inspect shift solenoid valve C and the shift solenoid

wire harness (see page 14-215).

15. Replace either shift solenoid valve C or the shift

solenoid wire harness (see page 14-217),
whichever failed the test, then go to step 16.

16. Reconnect all connectors.

17. Turn the ignition switch to ON (II).

18. Clear the DTC with the HDS.

19. Start the engine with the shift lever in P, and wait

for at least 1 second. Then test-drive the vehicle in
1st gear in D for at least 1 second.

20. Check for Temporary DTCs or DTCs with the HDS.

Check for intermittent short to body ground

in the wire between shift solenoid valve C and the
PCM, then go to step 1.

Go to step 21.

21. Monitor the OBD STATUS for P0979 in the DTCs

MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.

If the HDS indicates FAILED, check for

intermittent short to body ground in the wire
between shift solenoid valve C and the PCM, then
go to step 1. If the HDS indicates NOT COMPLETED,
go to step 19.

22. Reconnect all connectors.

23. 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).

24. Start the engine with the shift lever in P, and wait

for at least 1 second. Then test-drive the vehicle in
1st gear in D for at least 1 second.

25. Check for Temporary DTCs or DTCs with the HDS.

Check for intermittent short to body ground

in the wire between shift solenoid valve C and the
PCM. If the PCM was updated, substitute a known-
good PCM (see page 11-7), then go to step 24. If the
PCM was substituted, go to step 1.

Go to step 26.

26. Monitor the OBD STATUS for P0979 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 25,
go to the indicated DTC’s troubleshooting.

If the HDS indicates FAILED, check for

intermittent short to body ground in the wire
between shift solenoid valve C and the PCM. If the
PCM was updated, substitute a known-good PCM
(see page 11-7), then go to step 24. If the PCM was
substituted, go to step 1. If the HDS indicates NOT
COMPLETED, go to step 24.

Is DT C P097 9 indicated?

Does the HDS indicate PASSED?

Is DT C P097 9 indicated?

Does the HDS indicate PASSED?

08/08/21 14:44:02 61SNR030_140_0178

Content .. 271 272 273 274 ..