Honda Civic. Manual - part 232

Is DTC P1717 indicated?

YES -Check for poor connections or loose terminals between the transmission
range switch and the PCM, then go to step 1.

NO -Go to step 15.

15. Monitor the OBD STATUS for P1717 in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

YES -Troubleshooting is complete. If any other DTCs were indicated in step
14, go to the INDICATED DTC'S TROUBLESHOOTING.

NO -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.

16. Update the PCM if it does not have the latest software (see UPDATING THE

PCM ), or substitute a known-good PCM (see SUBSTITUTING THE
PCM ).

17. Test-drive the vehicle with the shift lever in R at speeds below 3 mph (5 km/h)

for at least 2 seconds. Then increase the speed and drive at speeds over 3 mph
(5 km/h) for at least 2 seconds.

18. Check for DTCs with the HDS.

Is DTC P1717 indicated?

YES -Check for poor connections or loose terminals between the transmission
range switch and the PCM. If the PCM was updated, substitute a known-good
PCM (see SUBSTITUTING THE PCM ), then go to step 17. If the PCM was
substituted, go to step 1.

NO -Go to step 19.

19. Monitor the OBD STATUS for P1717 in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

YES -If the PCM was updated, troubleshooting is complete. If the PCM was
substituted, replace the original PCM (see ECM/PCM REPLACEMENT ). If
any other DTCs were indicated in step 18, go to the INDICATED DTC'S
TROUBLESHOOTING.

NO -If the HDS indicates FAILED, check for poor connections or loose
terminals between the transmission range switch and the PCM. If the PCM was
updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ),
then go to step 17. If the PCM was substituted, go to step 1. If the HDS
indicates NOT COMPLETED, go to step 17.

DTC P1746: Problem in Shift Control System; Cut Valve A Stuck OFF, or Cut Valve B Stuck ON

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 ) through a strainer. Inspect the strainer for metal

debris or excessive clutch material.

Does the strainer have metal debris or excessive clutch material?

YES -Replace the transmission, then go to step 9.

NO -Replace the ATF (see step 5 ), then go to step 4.

4. Turn the ignition switch to ON (II).
5. Clear the DTC with the HDS.
6. Test-drive the vehicle with the shift lever in D, and let the transmission shift

through all five gears.

7. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 6, then go

NOTE:

Before you troubleshoot, record all freeze data and any on-
board snapshot with the HDS, and review General
Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

to step 8.

8. Monitor the OBD STATUS for P1746 in the DTCs MENU with the HDS.

Does the HDS indicate FAILED?

YES -Repair cut valve A in the servo body (see SERVO BODY
DISASSEMBLY, INSPECTION, AND REASSEMBLY ), cut valve B in the
main valve body (see MAIN VALVE BODY DISASSEMBLY,
INSPECTION, AND REASSEMBLY ), replace the main valve body or the
servo body, or replace the transmission, then go to step 9.

NO -If the HDS indicates PASSED, intermittent failure, the system is OK at
this time. If the HDS indicates NOT COMPLETED, go to step 6.

9. Test-drive the vehicle with the shift lever in D, and let the transmission shift

through all five gears.

10. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 9, then go

to step 11.

11. Check for DTCs with the HDS.

Is DTC P1746 indicated?

YES -Go to step 4.

NO -Go to step 12.

12. Monitor the OBD STATUS for P1746 in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

YES -Troubleshooting is complete. If any other DTCs were indicated in step
11, go to the INDICATED DTC'S TROUBLESHOOTING.

NO -If the HDS indicates FAILED, go to step 4. If the HDS indicates NOT
COMPLETED, go to step 9.

DTC P1747: Problem in Shift Control System; Cut Valve A Stuck ON, or Cut Valve B Stuck OFF

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

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 ) through a strainer. Inspect the strainer for metal

debris or excessive clutch material.

Does the strainer have metal debris or excessive clutch material?

YES -Replace the transmission, then go to step 9.

NO -Replace the ATF (see step 5 ), then go to step 4.

4. Turn the ignition switch to ON (II).
5. Clear the DTC with the HDS.
6. Test-drive the vehicle with the shift lever in D, and let the transmission shift

through all five gears.

7. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 6, then go

to step 8.

8. Monitor the OBD STATUS for P1747 in the DTCs MENU with the HDS.

Does the HDS indicate FAILED?

NO -If the HDS indicates PASSED, intermittent failure, the system is OK at
this time. If the HDS indicates NOT COMPLETED, go to step 6.

NOTE:

Before you troubleshoot, record all freeze data and any on-
board snapshot with the HDS, and review General
Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

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