Diagnostic Procedure

With CONSULT-III 

1. Start engine.
2. Select "MAIN SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Read out the value of "ISOLT3".
   ISOLT3 DISPLAY VALUE
   
   

   Item name	Condition	Display value (Approx.)
   ISOLT3	Secondary pressure low - Secondary pressure high	0.8 - 0.0 A

Without CONSULT-III 

1. Start engine.
2. Check voltage between TCM connector terminal and ground.
   VOLTAGE REFERENCE CHART
   
   

   Name	Connector	Terminal	Condition	Voltage (Approx.)
   Pressure control solenoid valve B (Secondary pressure solenoid valve)	F56	2 - ground	Release your foot from the accelerator pedal.	5.0 - 7.0 V
   			Press the accelerator pedal all the way down.	3.0 - 4.0 V

   Fig 1: Checking Voltage Between TCM Connector Terminal And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between connector terminal and ground.

OK or NG 

OK: GO TO  5.

NG: GO TO  2.

1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
   PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE) CIRCUIT
   
   

   Solenoid valve	Connector	Terminal	Resistance (Approx.)
   Pressure control solenoid valve B (Secondary pressure solenoid valve)	F56	2 - Ground	3.0 - 9.0 Ω

   Fig 2: 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.
   VALVE RESISTANCE
   
   

   Solenoid valve	Connector	Terminal	Resistance (Approx.)
   Pressure control solenoid valve B (Secondary pressure solenoid valve)	F30	3 - Ground	3.0 - 9.0 Ω

Fig 3: 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: Repair or replace damaged parts.

1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit harness connector terminal.
   HARNESS BETWEEN TCM AND PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)
   
   

   Item	Connector	Terminal	Continuity
   TCM connector	F56	2	Yes
   CVT unit harness connector	F30	3

   Fig 4: Checking Continuity Between TCM Connector Terminal And CVT Unit Harness Connector Terminal

   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 or replace damaged parts.

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

OK or NG 

OK: INSPECTION END 

NG: GO TO  6.

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 the transaxle assembly. Refer to "REMOVAL AND INSTALLATION ".