2006 ACURA CSX stop start



Clear A/T DTCs Procedure
OBD StatusHow to End a Troubleshooting Session
(required after any troubleshooting)
Failure Reproduction Technique
14-6Automatic Transmission
General Troubleshooting Information (cont’d)
A
1. Connect the HDS to the DLC (A) located under the
driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the PCM. If it does not, go to the DLC circuit troubleshooting
(see page 11-204).
4. Clear the DTC(s) on the HDS screen.
The OBD status shows the current system status of
each DTC and all of the parameters. This function is
used to see if the technician’s repair was successfully
completed. The results of diagnostic tests for the DTC
are displayed as:  PASSED: The on-board diagnosis is successfully completed.
 FAILED: The on-board diagnosis has finished but failed.
 NOT COMPLETED: The on-board diagnosis was running but is out of the enable conditions of the DTC. NOTE: Reset the PCM with the HDS while the engine is
stopped.
1. Turn the ignition switch to LOCK (0).
2. Turn the ignition switch to ON (II), and wait for 30 seconds.
3. Turn the ignition switch to LOCK (0), and disconnect the HDS from the DLC.
4. Do the PCM idle learn procedure (see page 11-310).
5. Start the engine with the shift lever in P or N, and warm it up to normal operating temperature (the
radiator fan comes on).
6. To verify that the problem is repaired, test-drive the vehicle for several minutes at speeds over 50 km/h
(31 mph) or under the same conditions as those
indicated by the freeze data.
Make sure to follow these points while the vehicle is
raised on a lift for the test-drive.  Disable the VSA by pressing the VSA OFF switch.
 VSA DTC’s may come on when test-driving on a lift. If the VSA DTC(s) come on, clear the DTC(s) with the
HDS.
08/08/21 14:37:07 61SNR030_140_0008
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Gear SelectionPosition Description
Automatic Transmission Gear Position Indicator
Shift Indicator and M Indicator
14-29
The shift lever has five positions; P: PARK, R: REVERSE, N: NEUTRAL, D: DRIVE 1st thr ough 5th gear ranges with
D-position automatic shift mode and D-paddle shift mode, S: DRIVE 1st through 5th gear ranges with S-position
automatic shift mode and sequential sportshift mode.
P: PARK Front wheels locked; the park pawl engaged with the park gear on the countershaft. All clutches are released.
R: REVERSE Reverse; the reverse selector engaged with the c ountershaft reverse gear
and the 5th clutch engaged.
N: NEUTRAL All clutches are released.
D: DRIVE
(1st through 5th) General driving; starts off in 1st, shifts automatically to 2nd, 3rd, 4th, then
5th gear, depending on the vehicle speed and throttle position. Downshifts
through 4th, 3rd, 2nd, and 1st on deceleration to stop. The lock-up
mechanism operates in 2nd, 3rd, 4th, and 5th gears.
S: DRIVE
(1st through 5th) S-position
automatic shift
modeFor rapid acceleration at highway speeds and general driving; starts off in
1st, shifts automatically to 2nd, 3rd, 4th, then 5th gear, depending on
vehicle speed and throttle position. Downshifts through 4th, 3rd, 2nd, and
1st gear on deceleration to stop. The lock-up mechanism operates in 2nd,
3rd, 4th, and 5th gears.
Sequential
sportshift mode Manual gear shift driving; vehicle can starts off in 1st and 2nd gears, and
does not upshift automatically.
NOTE: D-paddle shift mode has been added for ’08-09 models.
Starting the engine is possible only in P and N because of a slide-type neutral-safety switch.
The A/T gear position indicator in the gauge control module (tach) shows which shift l ever position has been selected
without having to look down at the console.
When the transmission is switched into the sequential sportshift mode, the shift indicator in the gauge control module
(tach) displays the gear selected, and the M indicator next to the shift indicator comes on. The shift indicator also
displays the gear selected in the D-paddle shift mode, but the M indicator does not come on.
NOTE: D-paddle shift mode has been added for ’08-09 models.
08/08/21 14:38:16 61SNR030_140_0031
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Electronic Control System (cont’d)
S Position Automatic Shift Mode and Sequential Sportshift Mode
14-44 Automatic Transmission
System Description (cont’d)
SHIFT INDICATOR
’’M’’ INDICATOR
The S position has two shifting modes; the automatic shift mode and the sequential sportshift mode. In the S position
automatic shift mode, the transmission upshifts and downshifts automatically from 1st through 4th gear, and the
paddle shifters are ready to be activated to switch to the sequential sportshift mode. In the automatic shift mode, the
shift indicator and the M indicator in the gauge control module (tach) do not come on.
When the paddle shifter (upshift switch) or the paddle shifter (downshift switch) is pressed, the automatic shift
mode is canceled and the sequential sportshift mode comes into operation. The shift indicator displays the number of
the selected gear, and the M indicator comes on. In the sequential sportshift mode, the driver can shift up and down
manually from 1st through 5th gear by using the paddle shifters, much like a manual transmission. The paddle shifters
are installed on the back of the steering wheel, and the driver can shift gears by pressing the paddle shifters without
taking either hand off the steering wheel.
In the sequential sportshift mode, the transmission must be shifted up and down by pressing the paddle shifters.
However, the transmission cannot downshift and stays in the current gear if the paddle shifter is pressed while the
vehicle is coasting at a speed that would cause the engine to over-rev by downshifting the transmission, and the shift
indicator blinks the number of the selected gear several times, then returns to the number of the current gear. If the
vehicle speed reaches an appropriate speed while the shift indicator is blinking the number of the selected gear, the
transmission downshifts and the shift indicator displays the selected gear. The transmission also cannot upshift and
stays in the current gear if the paddle shifter is pressed while driving below an appropriate upshifting speed, the
shift indicator blinks the number of the selected gear several times, then returns to the number of the current gear. If
the vehicle speed reaches an appropriate upshift speed while the shift indicator is blinking the number of the selected
gear, the transmission upshifts and the shift indicator displays the selected gear.
This mode has automatic downshifting areas so the vehicle can run smoothly with more power to cope with upcoming
acceleration. When coasting in 5th gear or 4th gear, the transmission downshifts to the next lower gear if the vehicle
slows down to the programmed speed, or by pressing the brake pedal.
When the transmission decelerates to a stop, the transmission shifts to 1st gear automatically. The transmission can
be shifted to 2nd gear by pressing the paddle shifter while the vehicle is stopped, and the vehicle can start off in 2nd
gear.
The sequential sportshift mode is canceled when moving the shift lever to any position other than S.
08/08/21 14:38:23 61SNR030_140_0046
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Shift Lock System
14-76Automatic Transmission
System Description (cont’d)
P POSITION
LOCK PIN
SHIFT LOCK
STOP
SHIFT LOCK
SOLENOID PLUNGER
SHIFT LOCK SOLENOID: OFF SHIFT LOCK SOLENOID: ON
SELECT LEVER
GATE
The shift lock system prevents the shift lever from mis-shifting. The shift lock solenoid is usually OFF. After starting
the engine in P, the shift lever ca
nnot move to any other position from P because the shift lock stop stops the lock pin
unless the brake pedal is pressed. When the brake pedal is pressed and the accelerator pedal is not pressed, the shift
lock solenoid is ON; the shift lock solenoid plunger in the shift lock solenoid pulls the shift lock stop to release the lock
pin. Pressing the shift lever button, allows the shift lever to move to any other position. When the brake pedal and the
accelerator pedal are pressed at the same time, the shift lock system is not unlocked.
08/08/21 14:39:44 61SNR030_140_0078
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DTC P0705:
YES
NO
YES
NO YES
NO
14-83
ATPP (BLK/BLU)
GND (BLK)
TRANSMISSION RANGE
SWITCH CONNECTOR
Short in Transmission Range
Switch Circuit (Multiple Shift-position Input)
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.
4. With the brake pedal pressed, move the shift lever through all positions. Stop for at least 1 second in
each position.
5. Monitor the OBD STATUS for P0705 in the DTCs MENU with the HDS.
Go to step 6.
If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. Check for
intermittent short to body ground in the wires
between the transmission range switch and the
PCM. If the HDS indicates NOT COMPLETED, go to
step 3.
6. Turn the ignition switch to LOCK (0).
7. Inspect the transmission range switch (see page 14-265).
With the switch connector disconnected, go
to step 8.
Replace the transmission range switch
(see page 14-267), then go to step 45. 8. Turn the ignition switch to ON (II).
9. Measure the voltage between transmission range
switch connector terminals No. 6 and No. 10.
Go to step 15.
Go to step 10.
(cont’d)
Wire side of female terminals
Does the HDS ind icate F AILED?Is the switch OK ? I s t her e mor e t han 5 V ?
08/08/21 14:39:48 61SNR030_140_0085
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YES
NO
YES
NO YES
NO
YES
NO
14-91
45. Reconnect all connectors.
46. Turn the ignition switch to ON (II).
47. Clear the DTC with the HDS.
48. Start the engine.
49. With the brake pedal pressed, move the shift lever
through all positions. Stop for at least 1 second in
each position.
50. Check for Temporary DTCs or DTCs with the HDS.
Check for intermittent short to body ground
in the wires between the transmission range switch
and the PCM, then go to step 1.
Go to step 51.
51. Monitor the OBD STATUS for P0705 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 50,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for
intermittent short to body ground in the wires
between the transmission range switch and the
PCM, then go to step 1. If the HDS indicates NOT
COMPLETED, go to step 48.
52. Reconnect all connectors.
53. 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).
54. Start the engine.
55. With the brake pedal pressed, move the shift lever through all positions. Stop for at least 1 second in
each position. 56. Check for Temporary DTCs or DTCs with the HDS.
Check for intermittent short to body ground
in the wires between the transmission range switch
and the PCM. If the PCM was updated, substitute a
known-good PCM (see page 11-7), then go to step
54. If the PCM was substituted, go to step 1.
Go to step 57.
57. Monitor the OBD STATUS for P0705 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 56,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for
intermittent short to body ground in the wires
between the transmission range switch and the
PCM. If the PCM was updated, substitute a known-
good PCM (see page 11-7), then go to step 54. If the
PCM was substituted, go to step 1. If the HDS
indicates NOT COMPLETED, go to step 54.
Is DT C P07 05 ind icated ?
Does the HDS ind icate PASSED? Is DT C P07 05 ind icated ?
Does the HDS ind icate PASSED?
08/08/21 14:41:01 61SNR030_140_0093
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DTC P0706:
YES
NO
YES
NO YES
NO
YES
NO
YES
NO
14-92
Automatic Transmission
DTC Troubleshooting (cont’d)
Open in Transmission Range
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 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. Block the rear wheels and raise the front of the vehicle, make sure it is securely supported, and
allow the front wheels to rotate freely, or raise the
vehicle on a lift.
4. Start the engine, disable the VSA by pressing the VSA OFF switch (if equipped), run the vehicle with
the shift lever in D until the vehicle speed reaches
40 km/h (25 mph), then slow down and stop the
wheels.
5. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Go to step 6.
If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals between the
transmission range switch and the PCM. If the HDS
indicates NOT COMPLETED, go to step 4.
6. Turn the ignition switch to LOCK (0).
7. Inspect the transmission range switch (see page 14-265).
Go to step 8.
Replace the transmission range switch
(see page 14-267), then go to step 25.
8. Adjust the shift cable (see page 14-259). 9. Turn the ignition switch to ON (II).
10. Clear the DTC with the HDS.
11. Start the engine, disable the VSA by pressing the VSA OFF switch (if equipped), run the vehicle with
the shift lever in D until the vehicle speed reaches
40 km/h (25 mph), then slow down and stop the
wheels.
12. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Go to step 13.
If the HDS indicates PASSED, troubleshooting
is complete. If the HDS indicates NOT COMPLETED,
go to step 11.
13. Shift to D, and check the Forward Switch (ATPFWD) andA/TDSwitchintheDATALISTwiththeHDS.
Go to step 14.
Go to step 18.
14. Shift to S, and check the Forward Switch (ATPFWD) andA/TSSwitchintheDATALISTwiththeHDS.
Go to step 15.
Go to step 18.
Does the HDS ind icate F AILED?
Is the switch OK ? Does the HDS ind icate F AILED?
Ar e F or w ar d Sw i t ch ( AT PF W D) and A/ T D Sw i t chON?
Ar e F or w ar d Sw i t ch ( AT PF W D) and A/ T S Sw i t chON?
08/08/21 14:41:01 61SNR030_140_0094
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YES
NO
YES
NO
14-93
TRANSMISSION RANGE
SWITCH CONNECTOR
GND (BLK)
15. Clear the DTC with the HDS.
16. Start the engine, disable the VSA by pressing theVSA OFF switch (if equipped), run the vehicle with
the shift lever in D until the vehicle speed reaches
40 km/h (25 mph), then slow down and stop the
wheels.
17. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Go to step 18.
If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals between the
transmission range switch and the PCM. If the HDS
indicates NOT COMPLETED, go to step 16.
18. Turn the ignition switch to LOCK (0).
19. Disconnect the transmission range switch connector. 20. Check for continuity between transmission range
switch connector terminal No. 10 and body ground.
Go to step 21.
Repair open in the wire between the
transmission range switch and body ground (G 101)
(see page 22-16), or repair poor body ground
(G101), then go to step 25.
21. Turn the ignition switch to ON (II).
(cont’d)
Wire side of female terminals
Does the HDS ind icate F AILED? Is there continuity?
08/08/21 14:41:01 61SNR030_140_0095
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