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Automatic Transmission
DTC Troubleshooting (cont'd)
DTC P1740:
Problem in 4th Clutch
Transmission Fluid Pressure Switch Circuit
NOTE: Record all freeze data and review General
Troubleshooting Information (see page 14-247) before
you troubleshoot.
1. Turn the ignition switch ON (II).
2. Measure the voltage between PCM connector
terminals B19 and B20 or B22.
PCM CONNECTOR B (25P)
OP4SW
(BLU/YEL) LG1 (BRN/YEL)
Wire side of female terminals
Is there battery voltage?
YES
Go to step 7.
NO
Go to step 3.
14-348
LG2 (BRN/YEL)
3. Turn the ignition switch OFF.
4. Disconnect PCM connector B (25P).
5. Disconnect the 4th clutch transmission fluid
pressure switch connector.
6. Check for continuity between PCM connector
terminal B19 and body ground.
PCM CONNECTOR B (25P)
OP4SW (BLU/YEL)
Wire side of female terminals
Is there continuity?
YES
Repair short to ground in the wire between
PCM connector terminal B19 and the 4th clutch
transmission fluid pressure switch.
NO
Disconnect the 4th clutch transmission fluid
pressure switch connector, and go to step 15.
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