DTC P1758 LINE PRESSURE SOLENOID CIRCUIT — Diagnostic Procedure
AT-7093flowchartDiagnostic Procedure
1
1. CHECK GROUND CIRCUIT — Turn ignition switch to "OFF". Disconnect terminal cord assembly connector in engine compartment. Check resistance between line pressure control solenoid valve connector F302 terminal 10 and ground. Resistance: 6 - 10 Ω.
NG
Replace CVT assembly
OK
2
2. CHECK POWER SOURCE CIRCUIT — Turn ignition switch to "OFF". Disconnect TCM harness connector. Check continuity between line pressure control solenoid valve connector F302 terminal 10 and TCM harness connector F46 terminal 6. Continuity should exist. If OK, check harness for short to ground and short to power. Reinstall any part removed.
NG
same as step 1
OK
3
3. CHECK DTC — Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-7090.
NG
1. Perform TCM input/output signal inspection. 2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK
4
Inspection END