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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 778 (Automatic Transaxle Re4F04B) >> Trouble Diagnosis For Symptoms >> 6. Vehicle Does Not Creep Backward In R Position >> Symptom:

Symptom:

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Vehicle does not creep backward when selecting R position 

  1. CHECK A/T FLUID LEVEL 

    Check A/T fluid level.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Refill ATF.
  2. CHECK STALL REVOLUTION 

    Check stall revolution with selector lever in 1 and R positions.

    OK or NG 

    1. OK: GO TO  5.
    2. OK in 1 position, NG in R position: GO TO 3.
    3. NG in both 1 and R positions: GO TO  4.
  3. DETECT MALFUNCTIONING ITEM 
    1. Remove control valve assembly. Refer to REMOVAL .
    2. Check the following items:
      • Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
      • Line pressure solenoid valve
    3. Disassemble A/T.
    4. Check the following items:
      • Oil pump assembly
      • Torque converter
      • Reverse clutch assembly
      • High clutch assembly

    OK or NG 

    1. OK: GO TO  5.
    2. NG: Repair or replace damaged parts.
  4. DETECT MALFUNCTIONING ITEM 
    1. Remove control valve assembly. Refer to REMOVAL .
    2. Check the following items:
      • Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
      • Line pressure solenoid valve
    3. Disassemble A/T.
    4. Check the following items:
      • Oil pump assembly
      • Torque converter
      • Reverse clutch assembly
      • High clutch assembly
      • Low & reverse brake assembly
      • Low one-way clutch

    OK or NG 

    1. OK: GO TO 5.
    2. NG: Repair or replace damaged parts.
  5. CHECK LINE PRESSURE 

    Check line pressure at idle with selector lever in R position. Refer to Line Pressure Test .

    OK or NG 

    1. OK: GO TO  7.
    2. NG: GO TO 6.
  6. DETECT MALFUNCTIONING ITEM 
    1. Remove control valve assembly. Refer to REMOVAL .
    2. Check the following items:
      • Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
      • Line pressure solenoid valve
    3. Disassemble A/T.
    4. Check the following item:
      • Oil pump assembly

    OK or NG 

    1. OK: GO TO 7.
    2. NG: Repair or replace damaged parts.
  7. CHECK A/T FLUID CONDITION 
    1. Remove oil pan.
    2. Check A/T fluid condition.
      Fig 1: Checking Automatic Transaxle Fluid Condition
      G02016863Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  9.
    2. NG: GO TO 8.
  8. DETECT MALFUNCTIONING ITEM 
    1. Remove control valve assembly. Refer to REMOVAL .
    2. Check the following items:
      • Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
      • Line pressure solenoid valve
    3. Disassemble A/T.
    4. Check the following items:
      • Oil pump assembly
      • Torque converter
      • Reverse clutch assembly
      • High clutch assembly
      • Low & reverse brake assembly
      • Low one-way clutch

    OK or NG 

    1. OK: GO TO 9.
    2. NG: Repair or replace damaged parts.
  9. CHECK SYMPTOM 

    Check again.

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO 10.
  10. CHECK 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.
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