DTC P0745 [GF4AX-EL]


DTC P0745	Pressure control solenoid circuit malfunction
DETECTION CONDITION	• If the PCM detects either of following conditions, the PCM determines that the pressure control solenoid circuit has a malfunction: - Pressure control solenoid voltage stuck 0 V after engine start. - Pressure control solenoid voltage stuck B+ after engine start. Diagnostic support note: • This is a continuous monitor (CCM). • The MIL does not illuminate if the PCM detects the above malfunction conditions during the first drive cycle. • A PENDING CODE is not available. • FREEZE FRAME DATA is available. • The O/D OFF indicator light illuminates. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE	• Pressure control solenoid malfunction. • Short to ground in wiring harness between pressure control solenoid terminal A (wiring harness-side) and solenoid valve connector terminal G (transaxle case side). • Short to ground in wiring harness between solenoid valve connector terminal G (wiring harness-side) and PCM terminal 91 (wiring harness-side). • Short to power supply in wiring harness between pressure control solenoid terminal A (wiring harness-side) and solenoid valve connector terminal G (transaxle case side). • Short to power supply in wiring harness between solenoid valve connector terminal G (wiring harness-side) and PCM terminal 91 (wiring harness-side). • Open circuit in wiring harness between pressure control solenoid terminal A (wiring harness-side) and solenoid valve connector terminal G (transaxle case side). • Open circuit in wiring harness between solenoid valve connector terminal G (wiring harness-side) and PCM terminal 91 (wiring harness-side). • Damaged connector between pressure control solenoid and PCM. • PCM malfunction.


STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	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.
2		No	Go to the next step.
3	INSPECT SOLENOID VALVE CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the solenoid valve connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal?	Yes	Go to the next step.
3		No	Repair or replace connector and/or terminals, then go to step 11.
4	INSPECT RESISTANCE • Inspect resistance between solenoid valve connector terminal G (transaxle case side) and body ground. • Is resistance within 9-18 ohms? (See SOLENOID VALVE INSPECTION [GF4AX-EL].)	Yes	Go to Step 7.
4		No	Go to the next step.
5	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.
5		No	Repair or replace connector and/or terminals, then go to Step 11.
6	INSPECT RESISTANCE • Inspect resistance between pressure control solenoid terminal A (part-side) and body ground. • Is resistance within 9-18 ohms? (See SOLENOID VALVE INSPECTION [GF4AX-EL].)	Yes	Replace the solenoid harness, then go to Step 11.
6		No	Verify pressure control solenoid installation. • If the solenoid is installed correctly, replace the pressure control solenoid, then go to Step 11. (See SOLENOID VALVE REMOVAL/INSTALLATION [GF4AX-EL].)
7	INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal?	Yes	Go to the next step.
7		No	Repair or replace connector and/or terminals, then go to Step 11.
8	INSPECT SOLENOID VALVE CONNECTOR CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between PCM terminal 91 (wiring harness-side) and solenoid valve connector terminal G (wiring harness-side). • Is there continuity between terminals?	Yes	Go to the next step.
8		No	Repair or replace the wiring harness, the go to Step 11.
9	INSPECT SOLENOID VALVE CONNECTOR CIRCUIT FOR SHORT TO POWER SUPPLY • Turn the ignition switch to the ON position (engine off). • Inspect the voltage at solenoid valve connector terminal G (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
9		No	Repair or replace the wiring harness, then go to Step 11.
10	INSPECT PCM CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • Inspect for continuity between PCM terminal 91 (wiring harness-side) and body ground. • Is there continuity?	Yes	Repair or replace the wiring harness, then go to the next step.
10		No	Go to the next step.
11	VERIFY TROUBLESHOOTING OF DTC P0745 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from memory using the WDS or equivalent. • Driving in 1GR at D range. • Are any DTCs present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L3].)
11		No	Go to the next step.
12	VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [GF4AX-EL].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [GF4AX-EL].)
12		No	DTC troubleshooting completed.