Is DTC P0842 indicated?
YES -Check for intermittent short to body ground in the wire between the 2nd
clutch transmission fluid pressure switch 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.
NO -Go to step 26.
26. Monitor the OBD STATUS for P0842 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
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 25, go to the INDICATED DTC'S
TROUBLESHOOTING.
NO -If the HDS indicates FAILED, check for intermittent short to body ground
in the wire between the 2nd clutch transmission fluid pressure switch 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 P0843: Open in 2nd Clutch Transmission Fluid Pressure Switch Circuit, or 2nd Clutch Transmission Fluid
Pressure Switch Stuck OFF
1. Turn the ignition switch to ON (II).
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 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)