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DTC P0745 [FS5A-EL]

id050221806600

DTC P0745 | Pressure control solenoid A malfunction
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DETECTION CONDITION | • If the TCM detects either of the following conditions, the TCM determines that pressure control solenoid A circuit has a malfunction. - Pressure control solenoid A voltage stuck 0 V after engine start - Pressure control solenoid A voltage stuck B+ after engine start Diagnostic support note: • This is a continuous monitor (CCM). • The MIL does not illuminate if TCM detects above malfunction conditions during the first drive cycle. • A PENDING CODE is not available. • FREEZE FRAME DATA is not available. • The AT warning light illuminates. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE | • Pressure control solenoid A malfunction • Open circuit in wiring harness between pressure control solenoid A terminal B and transaxle connector (primary) terminal I • Open circuit in wiring harness between transaxle connector (primary) terminal I and TCM terminal 1G • Short to ground in wiring harness between transaxle connector (primary) terminal D and TCM terminal 1E • Short to power supply in wiring harness between transaxle connector (primary) terminal D and TCM terminal 1E • Open circuit in wiring harness between pressure control solenoid terminal A and transaxle connector (primary) terminal D • Open circuit in wiring harness between transaxle connector (primary) terminal D and TCM terminal 1E • Damaged connector between pressure control solenoid A and TCM • TCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Bulletins and/or on-line repair information availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to the available repair information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
2 | INSPECT TRANSAXLE CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the transaxle connector (primary). • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 10.
3 | INSPECT RESISTANCE • Inspect the resistance between transaxle connector (primary) terminals D and I (transaxle case side). • Is the resistance within 2.4-7.3 ohms? (See Resistance Inspection (On-Vehicle Inspection).) | Yes | Go to Step 6.
No | Go to the next step.
4 | INSPECT PRESSURE CONTROL SOLENOID CONNECTOR FOR POOR CONNECTION • Disconnect the pressure control solenoid connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 10.
5 | INSPECT RESISTANCE • Inspect the resistance between the pressure control solenoid terminals A and B. • Is the resistance within 2.4-7.3 ohms? (See Resistance Inspection (Off-Vehicle Inspection).) | Yes | Replace the solenoid wiring harness, then go to Step 10.
No | Verify pressure control solenoid installation. • If solenoid installed correctly, replace the pressure control solenoid, then go to Step 10. (See SOLENOID VALVE REMOVAL/INSTALLATION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].)
6 | INSPECT TCM CONNECTOR FOR POOR CONNECTION • Disconnect the TCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 10.
7 | INSPECT TRANSAXLE CONNECTOR CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between the TCM (wiring harness-side) and transaxle connector (primary) (wiring harness-side). - TCM terminal 1E and transaxle connector (primary) terminal D - TCM terminal 1G and transaxle connector (primary) terminal I • Is there continuity between terminals? | Yes | Go to the next step.
No | Repair or replace the wiring harness, the go to Step 10.
8 | INSPECT TRANSAXLE CONNECTOR CIRCUIT FOR SHORT TO POWER SUPPLY • Turn the ignition switch to the ON position (engine off). • Inspect the voltage at transaxle connector (primary) terminal D (wiring harness-side). • Is the voltage 0 V? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 10.
9 | INSPECT TCM CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • Inspect for continuity between transaxle connector (primary) terminal D (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness, then go to the next step.
No | Go to the next step.
10 | VERIFY TROUBLESHOOTING OF DTC P0745 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Make sure to wait more than 1 s after turning the ignition switch to the ON position. • Are any DTCs present? | Yes | Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)
No | No concern is detected. Go to the next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FS5A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection.
No | DTC troubleshooting completed.