DTC P0745:00 [FS5A-EL]

id050221818500

DTC P0745:00

Pressure control solenoid A malfunction
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.
•  A PENDING CODE is not available.
•  FREEZE FRAME DATA is not available.
•  The AT warning light illuminates if TCM detects above malfunction conditions during the first drive cycle.
•  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 A 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
1
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related Service Information 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
•  Switch the ignition to off.
•  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?
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?
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.
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
•  Switch the ignition to ON (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
•  Switch the ignition to off.
•  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 P0745:00 COMPLETED
•  Make sure to reconnect all the disconnected connectors.
•  Clear the DTC from the memory using the M-MDS.
•  Make sure to wait more than 1 s after switch the ignition to ON.
•  Is the same DTC 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”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.