A/T Does Not Shift: D3 --> D4

SYMPTOM: 

• A/T does not shift from D3 to D4 at the specified speed. 
• A/T must be warm before D3 to D4 shift will occur. 

1. CHECK SYMPTOM 

   Are "Vehicle Does Not Creep Forward in D or L Position" and "Vehicle Cannot Be Started From D 1" OK?

   Yes or No

   • Yes: GO TO 2.
   • No: Go to "VEHICLE DOES NOT CREEP FORWARD IN D OR L POSITION " and "VEHICLE CANNOT BE STARTED FROM D1 ".
2. CHECK SELF-DIAGNOSTIC RESULTS 

   With CONSULT-II 

   Does self-diagnosis show damage to park/neutral position (PNP) switch, overdrive control switch, A/T fluid temperature sensor, vehicle speed sensor A/T (revolution sensor), shift solenoid valve A or B, vehicle speed sensor MTR circuits?

   Fig 1: Vehicle Speed Sensor - Blinking Pattern

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

   Yes or No

   • Yes: Check damaged circuit. Refer to "DTC P0705 PARK/NEUTRAL POSITION SWITCH ", "DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT ", "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) ", "DTC P0750 SHIFT SOLENOID VALVE A ", "DTC P0755 SHIFT SOLENOID VALVE B " or "DTC VEHICLE SPEED SENSOR MTR ".
   • No: GO TO 3.
3. CHECK ACCELERATOR PEDAL POSITION (APP) SENSOR 

   Check accelerator pedal position (APP) sensor. Refer to "DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] ".

   Fig 2: Checking Accelerator Pedal Position Sensor

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

   OK or NG

   • OK: GO TO 4.
   • NG: Repair or replace accelerator pedal position (APP) sensor circuit.
4. CHECK A/T FLUID CONDITION 
   1. Remove oil pan.
   2. Check A/T fluid condition.
      Fig 3: Checking A/T Fluid Condition

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

   OK or NG

   • OK: GO TO 6.
   • NG: GO TO 5.
5. DETECT MALFUNCTIONING ITEM 
   1. Remove control valve assembly. Refer to "CONTROL VALVE ASSEMBLY AND ACCUMULATORS ".
   2. Check the following items:
      • Shift valve A
      • Shift solenoid valve A
      • Overrun clutch control valve
      • Overrun clutch solenoid valve
      • Pilot valve
      • Pilot filter
   3. Disassemble A/T.
   4. Check the following items:
      • Servo piston assembly
      • Brake band

   OK or NG

   • OK: GO TO 7.
   • NG: Repair or replace damaged parts.
6. DETECT MALFUNCTIONING ITEM 
   1. Remove control valve assembly. Refer to "CONTROL VALVE ASSEMBLY AND ACCUMULATORS ".
   2. Check the following items:
      • Shift valve A
      • Shift solenoid valve A
      • Overrun clutch control valve
      • Overrun clutch solenoid valve
      • Pilot valve
      • Pilot filter

   OK or NG

   • OK: GO TO 7.
   • NG: Repair or replace damaged parts.
7. CHECK SYMPTOM 

   Check again.

   OK or NG

   • OK: INSPECTION END 
   • NG: GO TO 8.
8. CHECK TCM INSPECTION 
   1. Perform TCM input/output signal inspection. Refer to "TCM TERMINALS AND REFERENCE VALUE ".
   2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

   OK or NG

   • OK: INSPECTION END 
   • NG: Repair or replace damaged parts.