Honda Accord 2008 Manual page 1025

07/11/02 09:16:43 61TA0000_140_0182
Automatic Transmission
DTC Troubleshooting (cont'd)
DTC P0977: Open in Shift Solenoid Valve B
Circuit
NOTE:
• Before you troubleshoot, record all freeze data and
any on-board snapshot with the HDS, 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. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle with the shift lever in D
through 1st to 3rd gears, then drive in 3rd gear for
at least 1 second.
4. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P097 7 indicated?
YES − Go to step 8.
NO − Go to step 5.
5. Select Shift Solenoid Valve B in the Miscellaneous
Test Menu, and test shift solenoid valve B with the
HDS.
Is a clicking sound heard?
−
YES Go to step 6.
NO − Go to step 8.
6. Test-drive the vehicle with the shift lever in D
through 1st to 3rd gears, then drive in 3rd gear for
at least 1 second.
7. Monitor the OBD STATUS for P0977 in the DTCs
MENU with the HDS.
Does the HDS indicate F AILED?
YES − Go to step 8.
NO − If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals between shift
solenoid valve B and the PCM. If the HDS indicates
NOT COMPLETED, go to step 5.
14-180
8. Turn the ignition switch to LOCK (0).
9. Jump the SCS line with the HDS.
10. Disconnect PCM connectors B (49P) and C (49P).
11. Measure the resistance between PCM connector
terminals B12 and C44.
PCM CONNECTORS
SH B (GRN/WHT)
B (49P) C (49P)
Terminal side of female terminals
Is there 12 25 − ?
YES − Go to step 22.
−
NO Go to step 12.
12. Disconnect the shift solenoid harness connector.
13. Check for continuity between PCM connector
terminal B12 and shift solenoid harness connector
terminal No. 2.
SHIFT SOLENOID
HARNESS CONNECTOR
SH B (GRN/WHT)
Wire side of
female terminals
Is there continuity?
−
YES Go to step 14.
−
NO Repair open in the wire between PCM
connector terminal B12 and the shift solenoid
harness connector, then go to step 16.
ＴＡ０８ＡＥＢＫ７７１０００９０９７７ＦＡＡＴ００
LG1 (BRN/YEL)
PCM CONNECTOR B (49P)
SH B (GRN/WHT)
Terminal side of
female terminals
＊０１
＊０２