P2770
DTC P2770: Open in Shift Solenoid Valve C CircuitNOTE:
^ Record all freeze data and review General Troubleshooting Information before you troubleshoot.
^ This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
1. Clear the DTC with the Honda PGM Tester or HDS.
2. Check that DTC P2770 recurs.
Is DTC P2770 indicated?
YES - Go to step 5.
NO - Go to step 3.
3. Select LOCKUP SOL TEST in MISC. TEST MENU, then carry out A/T LOCKUP SOL A test in LOCKUP SOL TEST MENU with the HDS.
4. Check the OBD STATUS in DTCs MENU for a pass/fail test for code P2770.
Did the result fail?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to step 3 and recheck. A
5. Turn the ignition switch OFF.
6. Jump the SCS line with the HDS.
7. Disconnect PCM connector A (73P).
8. Measure the resistance between PCM connector terminals A14 and A39 or A40.
Is there 12 - 25 ohms ?
YES - Check for loose or poor connections at PCM connector terminal A14. If the connections are OK, update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
NO - Go to step 9.
9. Inspect torque converter clutch solenoid valve
Is torque converter clutch solenoid valve OK ?
YES - Go to step 10.
NO - Replace torque converter clutch solenoid valve, then go to step 12.
10. Remove the solenoid harness.
11. Check for continuity between solenoid harness connector terminal No. 3 and torque converter clutch solenoid valve connector.
Is there continuity ?
YES - Repair open in the wire between PCM connector terminal A14 and torque converter clutch solenoid valve, then go to step 12.
NO - Replace solenoid harness, then go to step 12.
12. Clear the DTC with the HDS.
13. Test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.
14. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P2770.
Did the result indicate a pass?
YES - The problem has been corrected.
NO - Return to step 1 and recheck.