Acura 2002 RSX Service Manual page 626

Automatic Tra nsm ission
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DTC Troubleshooting (cont'd)
DTC P0768: Problem in Shift Solenoid Valve
D Circuit
NOTE:
. Record allfreeze data and review General
Troubleshooting Information (see page 14-3) before
you troubleshoot.
. 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 OFF.
2. Disconnect PCM connectors A {31P) and C l22pl.
3 . T u r n t h e i g n i t i o n s w i t c h O N ( t t l .
4. Measure the voltage between PCM connector
terminals C5 and 423 ot A24.
PCM CONNECTORS
Wire side of female terminals
ls there vollage?
YES Repair short to power in the wire between
PCM connector terminal C5 and the shift solenoid
v a l v e D . l
NO Go to step 5.
Turn the ignition switch OFF.
Disconnect the shift solenoid harness connefior ar
the transmission housing.
6 .
{BRN/YELI
14-94
L
7 . Check for continuity between PCM connector
terminals C5 and A23 o( A24.
PCM CONNECTORS
Wire side of temale terminals
ls there continuity?
YES - Repair short to ground in the wire between
PCM connector terminal C5 and the shift solenoid
narness connector.I
NO- Go to step 8.
Connect the shift solenoid harness connector.
Measure the resistance between PCM connector
terminals C5 and A23 or A24.
PCM CONNECTORS
Wire side o{ female terminals
ls there 12 25 Q ?
YES- Update the PCM if it does nor have the tatest
software, or substitute a known-good PCM, then
recheck (see page 14-7). lf the symptom/indication
goes away with a known-good PCM. replace the
o r i g i n a l P C M . I
NO Go to step 10.
8.
IBRN/YEL)