Diagnostic Procedure

With CONSULT-II 

1. Turn ignition switch ON.
2. Select "SELECTION FROM MENU" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-II.
3. Read out the value of "LUSEL SOL OUT".

Fig 1: CONSULT-II Display - DATA MONITOR

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II 

1. Turn ignition switch ON.
2. Check voltage between TCM connector terminal and ground.
   VOLTAGE REFERENCE CHART
   
   

   Name	Connector	Terminal	Condition	Voltage (Approx.)
   Lock-up select solenoid valve	F56	4 - Ground	Selector lever in "P" and "N" positions	Battery voltage
   			Wait at least for 5 seconds with the selector lever in "R" and "D" positions	0V

3. Turn ignition switch OFF.
4. Disconnect the TCM connector.
5. Check if there is continuity between connector terminal and ground.

OK or NG 

OK: GO TO  5.

NG: GO TO  2.

Fig 2: Checking Voltage Between TCM Connector Terminal And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.

Fig 3: Checking Resistance Between TCM Connector Terminal And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO  5.

NG: GO TO  3.

1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal and ground.
   CVT UNIT HARNESS CONNECTOR TERMINAL AND GROUND
   
   

   Solenoid valve	Connector	Terminal	Resistance (Approx.)
   Lock-up select solenoid valve	F30	13 - Ground	6 - 19 Ω

   Fig 4: Checking Resistance Between CVT Unit Harness Connector Terminal And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG 

   OK: GO TO  4.

   NG: Replace the transaxle assembly. Refer to "REMOVAL AND INSTALLATION ".

4. CHECK HARNESS BETWEEN TCM AND LOCK-UP SELECT SOLENOID VALVE 
   1. Turn ignition switch OFF.
   2. Disconnect TCM connector.
   3. Check continuity between TCM connector terminal and CVT unit harness connector terminal.
      TCM AND LOCK-UP SELECT SOLENOID VALVE
      
      

      Item	Connector	Terminal	Continuity
      TCM	F56	4	Yes
      CVT unit harness connector	F30	13

      Fig 5: Checking Continuity Between TCM Connector Terminal And CVT Unit Harness Connector Terminals

      Courtesy of NISSAN MOTOR CO., U.S.A.
   4. If OK, check harness for short to ground and short to power.
   5. Reinstall any part removed.

   OK or NG 

   OK: GO TO  5.

   NG: Repair open circuit or short to ground or short to power in harness or connectors.

5. CHECK DTC 

   Perform "DTC Confirmation Procedure". Refer to "DTC Confirmation Procedure ".

   OK or NG 

   OK: INSPECTION END 

   NG: GO TO  6.

6. CHECK TCM 
   1. Check TCM input/output signals. Refer to "TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES ".
   2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.

   OK or NG 

   OK: INSPECTION END 

   NG:

   1. Repair or replace damaged parts.
   2. Replace TCM. Refer to "PRECAUTIONS FOR TCM AND CVT ASSEMBLY REPLACEMENT ."