Honda Ridgeline. Manual — part 198
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−
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YES
NO
YES
NO
14-177
21. Update the PCM if it does not have the latest
software (see page 14-8), or substitute a known-
good PCM (see page 14-9).
22. Start the engine in P, and warm it up to normal
operating temperature (the radiator fan comes on).
Test-drive the vehicle at a constant speed of
37 mph (60 km/h) in D, in 5th gear for at least
1 second.
23. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the torque converter clutch solenoid
valve, the shift solenoid harness, and the PCM. If
the PCM was updated, substitute a known-good
PCM (see page 14-9), then go to step 22. If the PCM
was substituted, go to step 1.
If Temporary DTC or DTC P2769 is not
indicated, or if any other Temporary DTCs or DTCs
are indicated, go to step 24.
24. Monitor the OBD STATUS for P2769 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 11-205). If any other
Temporary DTCs or DTCs were indicated on step
23, go to the indicated DTCs troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the torque
converter clutch solenoid valve, the shift solenoid
harness, and the PCM. If the PCM was updated,
substitute a known-good PCM (see page 14-9), then
go to step 22. If the PCM was substituted, go to step
1. If the screen indicates NOT COMPLETED, go to
step 22.
Is DT C P27 69 indicated?
Does the scr een indicate PASSED?
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01
SJC8A00K77100092770FAAT00
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DTC P2770:
YES
NO
YES
NO
YES
NO
YES
NO
14-178
Automatic Transmission
DTC Troubleshooting (cont’d)
C (44P)
PCM CONNECTORS
B (44P)
LG1 (BRN/YEL)
LG2 (BRN/YEL)
LC (YEL)
Open in Torque Converter Clutch
Solenoid Valve Circuit
NOTE:
• Before you troubleshoot, record all freeze data and
any on-board snapshot, and review General
Troubleshooting Information (see page 14-4).
• 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 HDS.
2. Start the engine in P, and warm it up to normal
operating temperature (the radiator fan comes on).
Test-drive the vehicle at a constant speed of
37 mph (60 km/h) in D, in 5th gear for at least
1 second.
3. Check that DTC P2770 recurs.
Go to step 7.
Go to step 4.
4. Select LOCKUP SOLENOID TEST in
MISCELLANEOUS TEST MENU, and test TORQUE
CONVERTER CLUTCH SOLENOID VALVE with the
HDS.
Go to step 5.
Go to step 7.
5. Start the engine in P, and warm it up to normal
operating temperature (the radiator fan comes on).
Test-drive the vehicle at a constant speed of
37 mph (60 km/h) in D, in 5th gear for at least
1 second.
6. Monitor the OBD STATUS for P2770 in the DTCs
MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the torque converter clutch solenoid valve, the
shift solenoid harness connector, and the PCM.
If the screen indicates FAILED, go to step 7. If
the screen indicates NOT COMPLETED, return to
step 4 and recheck.
7. Turn the ignition switch to LOCK (0).
8. Jump the SCS line with the HDS.
9. Disconnect PCM connectors B (44P) and C (44P).
10. Measure the resistance between PCM connector
terminals B44 and B43 or C40.
Go to step 21.
Go to step 11.
Terminal side of female terminals
Is DT C P27 7 0 indicated?
Does the scr een indicated NORMAL?
Does the scr een indicate PASSED?
Is ther e 12
25
?
*01
*02
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−
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YES
NO
YES
NO
14-179
PCM CONNECTOR B (44P)
SHIFT SOLENOID
HARNESS CONNECTOR
LC (YEL)
LC (YEL)
LC (YEL)
SHIFT SOLENOID
HARNESS CONNECTOR
TORQUE CONVERTER
CLUTCH SOLENOID
VALVE CONNECTOR
11. Disconnect the shift solenoid harness connector.
12. Check for continuity between PCM connector
terminal B44 and shift solenoid harness connector
terminal No. 3.
Go to step 13.
Repair an open in the wire between PCM
connector terminal B44 and the shift solenoid
harness connector, then go to step 15.
13. Remove the shift solenoid harness connector
(see page 14-188).
14. Check for continuity between shift solenoid
harness connector terminal No. 3 and the torque
converter clutch solenoid valve connector terminal.
Replace torque converter clutch solenoid
valve (see page 14-188), then go to step 15.
Replace the shift solenoid harness (see page
14-188), then go to step 15.
(cont’d)
Wire side of
female terminals
Terminal side of
female terminals
Wire side of
female terminals
Terminal side of
male terminals
Is ther e continuity?
Is ther e continuity?
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−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
14-180
Automatic Transmission
DTC Troubleshooting (cont’d)
15. Reconnect all connectors.
16. Turn the ignition switch to ON (II).
17. Clear the DTC with the HDS.
18. Start the engine in P, and warm it up to normal
operating temperature (the radiator fan comes on).
Test-drive the vehicle at a constant speed of
37 mph (60 km/h) in D, in 5th gear for at least
1 second.
19. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the torque converter clutch solenoid
valve, the shift solenoid harness, and the PCM,
then go to step 1.
If Temporary DTC or DTC P2770 is not
indicated, or if any other Temporary DTCs are
indicated, go to step 20.
20. Monitor the OBD STATUS for P2770 in the DTCs
MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTC or DTCs were indicated on step 19,
go to the indicated DTCs troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the torque
converter clutch solenoid valve, the shift solenoid
harness, and the PCM, then go to step 1. If the
screen indicates NOT COMPLETED, go to step 18.
21. Update the PCM if it does not have the latest
software (see page 14-8), or substitute a known-
good PCM (see page 14-9).
22. Start the engine in P, and warm it up to normal
operating temperature (the radiator fan comes on).
Test-drive the vehicle at a constant speed of
37 mph (60 km/h) in D, in 5th gear for at least
1 second.
23. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the torque converter clutch solenoid
valve, the shift solenoid harness, and the PCM. If
the PCM was updated, substitute a known-good
PCM (see page 14-9), then go to step 22. If the PCM
was substituted, go to step 1.
If Temporary DTC or DTC P2770 is not
indicated, or if any other Temporary DTCs or DTCs
are indicated, go to step 24.
24. Monitor the OBD STATUS for P2770 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 11-205). If any other
Temporary DTCs or DTCs were indicated on step
23, go to the indicated DTCs troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the torque
converter clutch solenoid valve, the shift solenoid
harness, and the PCM. If the PCM was updated,
substitute a known-good PCM (see page 14-9), then
go to step 22. If the PCM was substituted, go to step
1. If the screen indicates NOT COMPLETED, go to
step 22.
Is DT C P27 7 0 indicated?
Does the scr een indicate PASSED?
Is DT C P27 7 0 indicated?
Does the scr een indicate PASSED?
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