ACURA CSX 2006 Service Repair Manual

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DTC P0985:
’06 Model
YES
NO YES
NO
YES
NO
14-185
PCM CONNECTORS
B (44P) C (44P)
LG1 (BRN/YEL)
SHE (YEL)
PCM CONNECTORS
B (44P) C (44P)
LG1 (BRN/YEL)
SHE (YEL)
Short in Shift Solenoid Valve E
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. Start the engine with the shift lever in P, and wait for at least 1 second.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 8.
Intermittent failure, the system is OK at this
time. Check for intermittent short to body ground in
the wire between shift solenoid valve E and the
PCM.
5. Turn the ignition switch to LOCK (0).
6. Jump the SCS line with the HDS.
7. Disconnect PCM connectors B (44P) and C (44P). 8. Measure the resistance between PCM connector
terminals B24 and C40.
Go to step 9.
Go to step 18.
9. Disconnect the shift solenoid wire harness connector.
10. Check for continuity between PCM connector terminals B24 and C40.
Repair short to body ground in the wire
between PCM connector terminal B24 and the shift
solenoid wire harness connector, then go to step
13.
Go to step 11.
(cont’d)
Terminal side of female terminals
Terminal side of female terminals
I s DT C P0985 i nd i cat ed ? Is t her e l ess t han 12 ?
Is there continuity?
08/08/21 14:45:27 61SNR030_140_0187
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YES
NO YES
NO
14-186Automatic Transmission
DTC Troubleshooting (cont’d)
11. Inspect shift solenoid valve E and the shift solenoid
harness (see page 14-215).
12. Replace either shift solenoid valve E or the shift solenoid wire harness (see page 14-217),
whichever failed the test, then go to step 13.
13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Clear the DTC with the HDS.
16. Start the engine with the shift lever in P, and wait for at least 1 second. Then shift to N, and wait for at
least 1 second.
17. Check for Temporary DTCs or DTCs with the HDS.
Check for intermittent short to body ground
in the wire between shift solenoid valve E and the
PCM, then go to step 1.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated, go to the
indicated DTC’s troubleshooting. 18. Reconnect all connectors.
19. 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).
20. Start the engine with the shift lever in P, and wait for at least 1 second. Then shift to N, and wait for at
least 1 second.
21. Check for Temporary DTCs or DTCs with the HDS.
Check for intermittent short to body ground
in the wire between shift solenoid valve E and the
PCM. If the PCM was updated, substitute a known-
good PCM (see page 11-7), then go to step 20. If the
PCM was substituted, go to step 1.
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, go to the
indicated DTC’s troubleshooting.
I s DT C P0985 i nd i cat ed ? I s DT C P0985 i nd i cat ed ?
08/08/21 14:45:27 61SNR030_140_0188
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DTC P0985:
’07-09 Models
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
14-187
PCM CONNECTORS
B(44P) C(44P)
LG1 (BRN/YEL)
SHE (YEL)
PCM CONNECTORS
B(44P) C(44P)
LG1 (BRN/YEL)
SHE (YEL)
Short in Shift Solenoid Valve E
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. Start the engine with the shift lever in P, and wait 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 E in the Miscellaneous Test Menu, and test shift solenoid valve E with the
HDS.
Go to step 6.
Go to step 8.
6. Start the engine with the shift lever in P, and wait for at least 1 second.
7. Monitor the OBD STATUS for P0985 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 E 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 B24 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 B24 and C40.
Repair short to body ground in the wire
between PCM connector terminal B24 and the shift
solenoid wire harness connector, then go to step
16.
Go to step 14.
(cont’d)
Terminal side of female terminals
Terminal side of female terminals
I s DT C P0985 i nd i cat ed ?
Is a clicking sound heard?
Does the HDS ind icate F AILED? Is t her e l ess t han 12 ?
Is there continuity?
08/08/21 14:45:27 61SNR030_140_0189
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YES
NO
YES
NO YES
NO
YES
NO
14-188Automatic Transmission
DTC Troubleshooting (cont’d)
14. Inspect shift solenoid valve E and the shift solenoid
wire harness (see page 14-215).
15. Replace either shift solenoid valve E 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 shift to N, and wait 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 E and the
PCM, then go to step 1.
Go to step 21.
21. Monitor the OBD STATUS for P0985 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 E 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 shift to N, and wait 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 E 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 P0985 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 E 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.
I s DT C P0985 i nd i cat ed ?
Does the HDS ind icate PASSED? I s DT C P0985 i nd i cat ed ?
Does the HDS ind icate PASSED?
08/08/21 14:45:27 61SNR030_140_0190
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DTC P0986:
YES
NO
YES
NO
YES
NO YES
NO
14-189
PCM CONNECTORS
B (44P) C (44P)
LG1 (BRN/YEL)
SHE (YEL)
Open in Shift Solenoid Valve E
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. Start the engine with the shift lever in N, and wait 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 E in the Miscellaneous Test Menu, and test shift solenoid valve E with the
HDS.
Go to step 6.
Go to step 8.
6. Start the engine with the shift lever in N, and wait for at least 1 second.
7. Monitor the OBD STATUS for P0986 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
poor connections or loose terminals between shift
solenoid valve E 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 B24 and C40.
Go to step 22.
Go to step 12.
(cont’d)
Terminal side of female terminals
I s DT C P0986 i nd i cat ed ?Is a clicking sound heard?
Does the HDS ind icate F AILED? Is there 12 25 ?
08/08/21 14:45:28 61SNR030_140_0191
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YES
NO
YES
NO
14-190Automatic Transmission
DTC Troubleshooting (cont’d)
PCM CONNECTOR B (44P)
SHE (YEL)
SHE (YEL) SHIFT SOLENOID WIRE
HARNESS CONNECTOR
SHIFT SOLENOID WIRE
HARNESS CONNECTOR
SHIFT SOLENOID
VALVE E
CONNECTOR
SHE (RED)
12. Disconnect the shift solenoid wire harness connector.
13. Check for continuity between PCM connector terminal B24 and shift solenoid wire harness
connector terminal No. 3.
Go to step 14.
Repair open in the wire between PCM
connector terminal B24 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. 3 and the shift
solenoid valve E connector terminal.
Replace shift solenoid valve E (see page
14-217), then go to step 19.
Replace the shift solenoid wire harness
(see page 14-217), then go to step 19.
Wire side of
female terminals
Terminal side of
female terminals Wire side of
female terminals
Terminal side of
male terminals
I s t her e cont i nui t y ?
I s t her e cont i nui t y ?
08/08/21 14:45:28 61SNR030_140_0192
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YES
NO
YES
NO
YES
NO
YES
NO
14-191
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 shift to N, and wait 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 E and the
PCM, then go to step 1.
Go to step 21.
21. Monitor the OBD STATUS for P0986 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
solenoidvalveEandthePCM,thengotostep1.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 shift to N, and wait 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 E 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 P0986 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 E 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.
I s DT C P0986 i nd i cat ed ?
Does the HDS ind icate PASSED? I s DT C P0986 i nd i cat ed ?
Does the HDS ind icate PASSED?
08/08/21 14:45:28 61SNR030_140_0193
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DTC P16C0: DTC P1717:
YES
NO YES
NO
YES
NO
14-19214-192Automatic Transmission
DTC Troubleshooting (cont’d)
PCM A/T Control System
Incomplete Update Open in Transmission Range
Switch ATPRVS Switch 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 indicated when PCM updating is incomplete.
 Do not turn the ignition switch to LOCK (0) or ACCESSORY (I) while updating the PCM. If you turn
the ignition switch to LOCK (0) or ACCESSORY (I)
before completion, the PCM can be damage.
1. Update the PCM (see page 11-227).
2. Check for Temporary DTCs or DTCs with the HDS.
Replace the PCM (see page 11-228).
PCM updating is complete. 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. Shift to R, and check the A/T R Switch in the Data List with the HDS.
Go to step 3.
Check for proper transmission range switch
installation (see page 14-267), adjust the shift cable
(see page 14-259), then recheck. If transmission
rangeswitchandshiftcableareOK,gotostep4.
3. Check the Reverse Switch (ATPRVS) in the Data List with the HDS.
Intermittent failure, the system is OK at this
time.
Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Disconnect the transmission range switch connector.
Is DTC P16C0 indicated? Is the A/ T R SW IT CH ON?
Is t he Rev er se Sw i t ch ( AT PRV S) ON ?
08/08/21 14:45:28 61SNR030_140_0194
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YES
NO YES
NO
14-193
TRANSMISSION RANGE
SWITCH CONNECTOR
GND (BLK) TRANSMISSION RANGE
SWITCH CONNECTOR
GND (BLK)
ATPRVS
(WHT/RED)
6. Check for continuity between transmission range
switch connector terminal No. 10 and body ground.
Go to step 7.
Repair open in the wire between transmission
range switch connector terminal No. 10 and body
ground (G 101) (see page 22-16), or repair poor
body ground (G 101), then go to step 10. 7. Turn the ignition switch to ON (II).
8. Measure the voltage between transmission range
switch connector terminals No. 1 and No. 10.
Go to step 9.
Repair open in the wire between PCM
connector terminal B22 and the transmission range
switch,thengotostep10.
(cont’d)
Wire side of female terminals Wire side of female terminals
Is there continuity?Is t her e about bat t er y v ol t age?
08/08/21 14:45:29 61SNR030_140_0195
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YES
NO YES
NO
YES
NO
14-194Automatic Transmission
DTC Troubleshooting (cont’d)
ATPRVS
TRANSMISSION RANGE
SWITCH CONNECTOR
GND
9. Check for continuity between transmission rangeswitch connector terminals No. 1 and No. 10 while
the shift lever is in R, and when the shift lever is
shifted to any position other than R.
Go to step 16.
Replace the transmission range switch
(see page 14-267), then go to step 10. 10. Reconnect all connectors.
11. Turn the ignition switch to ON (II).
12. Clear the DTC with the HDS.
13. Start the engine with the shift lever in P. Shift to N,
then shift to R while pressing the brake pedal, and
wait for at least 2 seconds.
14. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the transmission range switch
and the PCM, then go to step 1.
Go to step 15.
15. Monitor the OBD STATUS for P1717 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 14,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the
transmission range switch and the PCM, then go to
step 1. If the HDS indicates NOT COMPLETED, go to
step 13.
Terminal side of male terminals
I s t her e cont i nui t y w hi l e t he shi f t l ev er i s i n R, and no cont i nui t y w hen t he shi f t l ev er i s shi f t ed t o anyposi t i on ot her t han R? I s DT C P 17 17 i nd i cat ed ?
Does the HDS ind icate PASSED?
08/08/21 14:45:29 61SNR030_140_0196
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