DTC P0745:00 [FS5A-EL]

id050221818500

DTC P0745:00

Pressure control solenoid A malfunction

DETECTION CONDITION

•  The TCM detects that output voltage to the pressure control solenoid A is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.

Diagnostic support note

•  The MIL does not illuminate.

•  The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

•  PENDING CODE is not available.

•  FREEZE FRAME DATA is not available.

•  The DTC is stored in the TCM memory.

POSSIBLE CAUSE

•  Coupler component connector or terminal malfunction

•  Short to power supply in wiring harness between pressure control solenoid A terminal A and TCM terminal AD

•  Short to power supply in wiring harness between pressure control solenoid A terminal B and TCM terminal AE

•  Short to GND in wiring harness between pressure control solenoid A terminal A and TCM terminal AD

•  Short to GND in wiring harness between pressure control solenoid A terminal B and TCM terminal AE

•  Pressure control solenoid A malfunction

•  TCM connector or terminal malfunction

•  Open circuit in wiring harness between pressure control solenoid A terminal A and TCM terminal AD

•  Open circuit in wiring harness between pressure control solenoid A terminal B and TCM terminal AE

•  TCM malfunction

DTC P0745:00	Pressure control solenoid A malfunction
DETECTION CONDITION	• The TCM detects that output voltage to the pressure control solenoid A is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation. Diagnostic support note • The MIL does not illuminate. • The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle. • PENDING CODE is not available. • FREEZE FRAME DATA is not available. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE	• Coupler component connector or terminal malfunction • Short to power supply in wiring harness between pressure control solenoid A terminal A and TCM terminal AD • Short to power supply in wiring harness between pressure control solenoid A terminal B and TCM terminal AE • Short to GND in wiring harness between pressure control solenoid A terminal A and TCM terminal AD • Short to GND in wiring harness between pressure control solenoid A terminal B and TCM terminal AE • Pressure control solenoid A malfunction • TCM connector or terminal malfunction • Open circuit in wiring harness between pressure control solenoid A terminal A and TCM terminal AD • Open circuit in wiring harness between pressure control solenoid A terminal B and TCM terminal AE • TCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service 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.
1		No	Go to the next step.
2	INSPECT COUPLER COMPONENT CONNECTOR FOR POOR CONNECTION • Switch the ignition off. • Disconnect the coupler component connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion) • Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 8.
2		No	Go to the next step.
3	INSPECT PRESSURE CONTROL SOLENOID A CIRCUIT FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Measure the voltage between the following circuits: ― Coupler component terminal D (wiring harness-side) and body GND ― Coupler component terminal I (wiring harness-side) and body GND • Is the voltage B+?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 8.
3		No	Go to the next step.
4	INSPECT PRESSURE CONTROL SOLENOID A CIRCUIT FOR SHORT TO GND • Switch the ignition off. • Inspect for continuity between the following circuits: ― Coupler component terminal D (wiring harness-side) and body GND ― Coupler component terminal I (wiring harness-side) and body GND • Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to GND, then go to Step 8.
4		No	Go to the next step.
5	INSPECT PRESSURE CONTROL SOLENOID A • Inspect pressure control solenoid A. (See SOLENOID VALVE INSPECTION [FS5A-EL].) • Is there any malfunction?	Yes	Replace the pressure control solenoid A, then go to Step 8. (See SOLENOID VALVE REMOVAL/INSTALLATION [FS5A-EL].)
5		No	Go to the next step.
6	INSPECT TCM CONNECTOR FOR POOR CONNECTION • Switch the ignition off. • Disconnect the TCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion) • Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 8.
6		No	Go to the next step.
7	INSPECT PRESSURE CONTROL SOLENOID A CIRCUIT FOR OPEN CIRCUIT • Switch the ignition off. • Inspect for continuity between the following circuits: ― Coupler component terminal D (wiring harness-side) and TCM terminal AD (wiring harness-side) ― Coupler component terminal I (wiring harness-side) and TCM terminal AE (wiring harness-side) • Is there continuity?	Yes	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
7		No	Go to the next step.
8	VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC using the M-MDS. • Perform the following procedure to ensure that the DTC has been resolved: 1. Make sure that the gears shift smoothly from 1GR to 5GR. 2. Make sure that TCC operates smoothly. • Is the same DTC present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)
8		No	Go to the next step.
9	VERIFY NO DTCs ARE PRESENT • Perform the “Reading DTCs Procedure”. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FS5A-EL].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FS5A-EL].)
9		No	DTC troubleshooting completed.