A/T Does Not Shift: D1 -> D2 Or Does Not Kickdown: D4 -> D2

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM:

A/T does not shift from D ₁ to D ₂ at the specified speed.

A/T does not shift from D ₄ to D ₂ when depressing accelerator pedal fully at the specified speed.

CHECK SYMPTOM
Are "Vehicle Does Not Creep Forward In "D", "2" Or "1" Position" and "Vehicle Cannot Be Started From D₁ " OK?

Yes or No
1. Yes: GO TO 2.
2. No: Go to "Vehicle Does Not Creep Forward In "D ", "2" Or "1" Position" , and "Vehicle Cannot Be Started From D1 ", .
CHECK PNP SWITCH CIRCUIT
With CONSULT-II

Does "TCM INPUT SIGNALS" in Data Monitor show damage to PNP switch circuit?

Without CONSULT-II

Does self-diagnosis show damage to PNP switch circuit?

Fig 1: Checking PNP Switch Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

Yes or No
1. Yes: Check PNP switch circuit. Refer to "DTC P0705 ".
2. No: GO TO 3.
CHECK VEHICLE SPEED SENSOR. A/T AND VEHICLE SPEED SENSOR.MTR CIRCUIT
Check vehicle speed sensor. A/T (revolution sensor) and vehicle speed sensor. MTR circuit. Refer to "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) " and DTC VEHICLE SPEED SENSOR-MTR .

OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace vehicle speed sensor. A/T (revolution sensor) and vehicle speed sensor. MTR circuits.
CHECK ACCELERATOR PEDAL POSITION SENSOR (THROTTLE POSITION SENSOR)
Check accelerator pedal position sensor (throttle position sensor). Refer to ACCELERATOR PEDAL POSITION SENSOR .

Fig 2: Identifying Accelerator Pedal Position Sensor (Throttle Position Sensor)
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 5.
2. NG: Repair or replace accelerator pedal position sensor (throttle position sensor).
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
1. OK: GO TO 6.
2. NG: GO TO 8.
DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to CONTROL VALVE ASSEMBLY AND ACCUMULATORS .
2. Check the following items:
  - Shift valve A
  - Shift solenoid valve A
  - Pilot valve
  - Pilot filter
OK or NG
1. OK: GO TO 7.
2. NG: Repair or replace damaged parts.
CHECK SYMPTOM
Check again.

OK or NG
1. OK: INSPECTION END
2. NG:
  1. Perform TCM input/output signal inspection.
  2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to CONTROL VALVE ASSEMBLY AND ACCUMULATORS .
2. Check the following items:
  - Shift valve A
  - Shift solenoid valve A
  - Pilot valve
  - Pilot filter
3. Disassemble A/T.
4. Check the following items:
  - Servo piston assembly
  - Brake band
  - Oil pump assembly
OK or NG
1. OK: GO TO 7.
2. NG: Repair or replace damaged parts.