P1740

P1740 SELECT SOLENOID

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. CHECK DTC DETECTION

With CONSULT
1.Start the engine.
2.Operate selector lever and keep for 1 second or more in each position.
3.Check DTC.
With GST
Follow the procedure "With CONSULT".
Is "P1740" detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Electrical Diagrams.

1. CHECK LOCK-UP SELECT SOLENOID VALVE

1.Turn ignition switch OFF.
2.Disconnect CVT unit connector.
3.Check lock-up select solenoid valve. Refer to "Component Inspection (Lock-up Select Solenoid Valve)" .
Is the inspection result normal?
YES- GO TO 2.
NO- Replace transaxle assembly due to malfunction in lock-up select solenoid valve. Refer to "Removal and Installation" Removal and Installation.

2. CHECK CIRCUIT BETWEEN TCM AND CVT UNIT

1.Disconnect TCM connector.
2.Check continuity between TCM harness connector terminal and CVT unit harness connector terminal.





3.Check continuity between TCM harness connector terminal and ground.
Revision: March 20122013 Infiniti JX





Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace damaged parts.


Component Inspection (Lock-up Select Solenoid Valve)


1. CHECK LOCK-UP SELECT SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace transaxle assembly due to malfunction in lock-up select solenoid valve. Refer to "Removal and Installation" Removal and Installation.
Revision: March 20122013 Infiniti JX