#
DTC P0745 [FN4A-EL]

id0502a1806600

DTC P0745 | Pressure control solenoid malfunction
--- | ---
DETECTION CONDITION | • If PCM detects either of following conditions, PCM determines that 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). • MIL does not illuminate if PCM detects above malfunction conditions during first drive cycle. • PENDING CODE is not available. • FREEZE FRAME DATA is not available. • HOLD indicator light flashes. • DTC is stored in the PCM memory.
POSSIBLE CAUSE | • Pressure control solenoid malfunction • Open circuit between pressure control solenoid terminal B and ATX connector terminal I • Open circuit between ATX connector terminal I and PCM terminal 1AV • Short to ground between ATX connector terminal D and PCM terminal 1AF • Short to power between ATX connector terminal D and PCM terminal 1AF • Open circuit between pressure control solenoid terminal A and ATX connector terminal D • Open circuit between ATX connector terminal D and PCM terminal 1AF • Damaged connector between pressure control solenoid and PCM • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Check for related Service Bulletins availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to available repair information. • If vehicle is not repaired, go to next step.
No | Go to next step.
2 | INSPECT ATX CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect ATX connector. • Check for poor connection (damaged/pulled-out terminal, corrosion, etc.). • Is connection normal? | Yes | Go to next step.
No | Repair or replace connector and/or terminals, then go to Step 10.
3 | INSPECT RESISTANCE • Inspect resistance between ATX connector (transaxle case side) terminals D and I. • Is resistance within 2.4-7.3 ohms? (See Resistance Inspection (On-Vehicle Inspection).) | Yes | Go to Step 6.
No | Go to next step.
4 | INSPECT PRESSURE CONTROL SOLENOID CONNECTOR FOR POOR CONNECTION • Disconnect pressure control solenoid connector. • Check for poor connection (damaged/pulled-out terminal, corrosion, etc.). • Is connection normal? | Yes | Go to next step.
No | Repair or replace connector and/or terminals, then go to Step 10.
5 | INSPECT RESISTANCE • Inspect resistance between pressure control solenoid terminals A and B. • Is resistance within 2.4-7.3 ohms? (See Resistance Inspection (Off-Vehicle Inspection).) | Yes | Replace solenoid harness, then go to Step 10.
No | Verify pressure control solenoid installation. • If solenoid installed correctly, replace pressure control solenoid, then go to Step 10. (See SOLENOID VALVE REMOVAL/INSTALLATION [FN4A-EL].)
6 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect PCM connector. • Check for poor connection (damaged/pulled-out terminals, corrosion, etc.). • Is connection normal? | Yes | Go to next step.
No | Repair or replace connector and/or terminals, then go to Step 10.
7 | INSPECT ATX CONNECTOR CIRCUIT FOR OPEN • Inspect for continuity between PCM (harness-side) and ATX connector (vehicle harness-side). - PCM terminal 1AF and ATX connector terminal D - PCM terminal 1AV and ATX connector terminal I • Is there continuity between terminals? | Yes | Go to next step.
No | Repair or replace harness, the go to Step 10.
8 | INSPECT ATX CONNECTOR CIRCUIT FOR SHORT TO POWER • Turn the ignition switch to the ON position (Engine OFF). • Inspect voltage at ATX connector terminal D (vehicle harness-side). • Is voltage 0 V? | Yes | Go to next step.
No | Repair or replace harness, then go to Step 10.
9 | INSPECT PCM CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch off. • Inspect for continuity between ATX connector terminal D (harness-side) and body ground. • Is there continuity? | Yes | Repair or replace harness, then go to next step.
No | Go to next step.
10 | VERIFY TROUBLESHOOTING OF DTC P0745 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from memory using WDS or equivalent. • Make sure to wait more than 1 s after turning ignition key to ON. • Are any DTCs present? | Yes | Replace PCM, then go to next step. (See PCM REMOVAL/INSTALLATION.)
No | No concern is detected. Go to next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to applicable DTC inspection.
No | Troubleshooting completed.