Honda ACCORD HYBRID 2005 Service Manual page 1001

DTC P0974: Open in Shift Solenoid Valve A
Circuit
NOTE:
• Record all freeze data and review General
Troubleshooting Information (see page 14-4) before
y o u troubleshoot.
• This code is caused by an electrical circuit p r o b l e m
and cannot be caused by a mechanical p r o b l e m in the
transmission.
1. Clear the DTC w i t h the HDS.
2. Test-drive the vehicle for several minutes in the D
position in all five gears.
3. Check that DTC P0974 recurs.
Is DTC P0974 indicated?
Y E S — G o to step 7.
N O — G o t o step 4.
4. Choose Shift Solenoid A in Miscellaneous Test
M e n u , and test the shift solenoid valve A w i t h the
HDS.
Is the system normal?
Y E S - G o t o step 5.
N O — G o t o step 7.
5. Test-drive the vehicle for several minutes in the D
position in all five gears.
6. M o n i t o r the OBD status for P0974 in the DTCs/
Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate a fail?
Y E S — G o t o step 7.
NO—Intermittent failure, the system is OK at this
t i m e . Check for poor connections or loose terminals
at shift solenoid valve A and the PCM. If the tester
indicates NOT COMPLETE, return to step 4 and
recheck. •
7. Turn the ignition switch OFF.
8. J u m p the SCS line w i t h the HDS.
9. Disconnect PCM connectors A (31P), C (22P), and D
(17P).
10. Measure the resistance between PCM connector
terminals C1 and A3 or D16.
PCM C O N N E C T O R S
A(31P)
(
: (22P)
1 2
I ,
e|7|U|« 9 2
LI
3 4 5 6 7
10 11 12 13 14 15 16 17 18 19 20 21
I
3 9 10 11 12 13 14 15
/
23 24 fl 25 26
n
27 28 29 30 31 1 6 17 18 19 20 n 21 22
D (17P)
1 2
/
4 5 6
/
8 9 10 11 12
13 14
n
15 16 17
L G 2 (BRN)
W i r e side of f e m a l e t e r m i n a l s
Is there 12—25 Q ?
Y E S — C h e c k for loose or poor connections at PCM
connector terminal C I . If the connection is OK,
update the PCM if it does not have the latest
software, or substitute a k n o w n - g o o d PCM
(see page 14-7), then recheck. If the s y m p t o m /
indication goes away w i t h a k n o w n - g o o d PCM,
replace the original P C M . B
NO—Go to step 11.
(cont'd)
14-165