Diagnostic Procedure

CHECK SELF-DIAGNOSTIC RESULTS
Execute self-diagnosis.

Do the self-diagnostic results indicate A/T fluid temperature sensor, engine speed signal, accelerator pedal position sensor, ATF pressure switch 1, front brake solenoid valve, CAN communication line?
1. Yes >> Check the malfunctioning system. Refer to "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT ", "DTC P0725 ENGINE SPEED SIGNAL ", "DTC P1705 THROTTLE POSITION SENSOR ", "DTC P1841 ATF PRESSURE SWITCH 1 ", "DTC P1757 FRONT BRAKE SOLENOID VALVE " "DTC P1757 FRONT BRAKE SOLENOID VALVE ", "DTC U1000 CAN COMMUNICATION LINE ".
2. No >> GO TO 2.
ENGINE IDLE SPEED
Check the engine idle speed. Refer to "IDLE SPEED AND IGNITION TIMING CHECK".

OK or NG
1. OK >> GO TO 3.
2. NG >> Repair.
CHECK CONTROL LINKAGE
Check the control linkage.
- Refer to "CHECKING OF A/T POSITION ".
  
  Fig 1: Identifying Control Linkage System
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> GO TO 4.
2. NG >> Adjust control linkage. Refer to "ADJUSTMENT OF A/T POSITION ".
CHECK A/T FLUID LEVEL
Check the A/T fluid level again. Refer to "CHECKING A/T FLUID ".

Fig 2: Checking A/T Fluid Level
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK >> GO TO 5.
2. NG >> Refill ATF.
CHECK LINE PRESSURE
Check line pressure at idle with selector lever in "D" position. Refer to "LINE PRESSURE TEST ".

Fig 3: Checking Line Pressure With Using Pressure Gauge
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK >> GO TO 8.
2. NG - 1 >> Line pressure high: GO TO 6.
3. NG - 2 >> Line pressure low: GO TO 7.
DETECT MALFUNCTIONING ITEM
1. Control valve assembly. Refer to "CONTROL VALVE ASSEMBLY ".
2. Disassemble A/T. Refer to "DISASSEMBLY ".
3. Check the following items:
- Oil pump assembly. Refer to "OIL PUMP ".
OK or NG
1. OK >> GO TO 8.
2. NG >> Repair or replace damaged parts.
DETECT MALFUNCTIONING ITEM
1. Control valve assembly. Refer to "CONTROL VALVE ASSEMBLY ".
2. Disassemble A/T. Refer to "DISASSEMBLY ".
3. Check the following items:
- Oil pump assembly. Refer to "OIL PUMP ".
- Power train system. Refer to "DISASSEMBLY ".
- Transmission case. Refer to "DISASSEMBLY ".
OK or NG
1. OK >> GO TO 8.
2. NG >> Repair or replace damaged parts.
CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to "CONTROL VALVE ASSEMBLY ".
2. Check A/T fluid condition.
  
  Fig 4: Checking A/T Fluid Condition
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> GO TO 9.
2. NG >> GO TO 12.
DETECT MALFUNCTIONING ITEM
- Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "SYMPTOM CHART ".
OK or NG
1. OK >> GO TO 10.
2. NG >> Repair or replace damaged parts.
CHECK SYMPTOM
Check again.

OK or NG
1. OK >> INSPECTION END
2. NG >> GO TO 11.
PERFORM TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
1. OK >> INSPECTION END
2. NG >> Repair or replace damaged parts.
DETECT MALFUNCTIONING ITEM
- Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "SYMPTOM CHART ".
OK or NG
1. OK >> GO TO 10.
2. NG >> Repair or replace damaged parts.