Honda Civic. Manual — part 231

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 24, go to the INDICATED DTC'S
TROUBLESHOOTING.

NO -If the HDS indicates FAILED, check for poor connections or loose
terminals between shift solenoid valve D and the PCM. If the PCM was
updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ),
then go to step 23. If the PCM was substituted, go to step 1. If the HDS
indicates NOT COMPLETED, go to step 23.

DTC P16C0: PCM A/T Control System Incomplete Update

1. Update the PCM (see UPDATING THE PCM ).
2. Check for DTCs with the HDS.

Is DTC P16C0 indicated?

YES -Replace the PCM (see ECM/PCM REPLACEMENT ).

NO -PCM updating is complete.

DTC P1717: Open in Transmission Range Switch ATP RVS Switch Circuit

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 ).

This code is indicated when PCM updating is
incomplete.

Do not turn the ignition switch to LOCK (0) while
updating the PCM. If you turn the ignition switch to
LOCK (0) before completion, the PCM can be damaged.

NOTE:

Before you troubleshoot, record all freeze data and any
on-board snapshot with the HDS, and review General

2008 Honda Civic LX

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

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.

Is the A/T R SWITCH ON?

YES -Go to step 3.

NO -Check for proper transmission range switch installation (see
TRANSMISSION RANGE SWITCH REPLACEMENT ), adjust the shift
cable (see SHIFT CABLE ADJUSTMENT ), then recheck.

3. Check the REVERSE SWITCH in the DATA LIST with the HDS.

Is the REVERSE SWITCH ON?

YES -Intermittent failure, the system is OK at this time.

NO -Go to step 4.

4. Turn the ignition switch to LOCK (0).
5. Disconnect the transmission range switch connector.
6. Check for continuity between transmission range switch connector terminal

No. 10 and body ground.

Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

This code is caused by an electrical circuit problem and
cannot be caused by a mechanical problem in the
transmission.

2008 Honda Civic LX

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

Fig. 165: Checking Continuity Between Transmission Range Switch
Connector Terminal 10 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 7.

NO -Repair open in the wire between transmission range switch connector
terminal No. 10 and ground (G101) (see CONNECTOR TO HARNESS
INDEX ), or repair poor ground (G101), 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.

Fig. 166: Measuring Voltage Between Transmission Range Switch
Connector Terminals 1 And 10
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

2008 Honda Civic LX

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

YES -Go to step 9.

NO -Repair open in the wire between PCM connector terminal B22 and the
transmission range switch, then go to step 10.

9. Check for continuity between transmission range switch 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.

Fig. 167: Checking Continuity Between Transmission Range Switch
Connector Terminals 1 And 10
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity while the shift lever is in R, and no continuity when the shift
lever is shifted to any position other than R?

YES -Go to step 16.

NO -Replace the transmission range switch (see TRANSMISSION RANGE
SWITCH REPLACEMENT ), 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. 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.

14. Check for DTCs with the HDS.

2008 Honda Civic LX

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