Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CONFIRM THE SYMPTOM
Check if vehicle creeps forward in "D" position and vehicle can be started from D1.

OK or NG

OK: GO TO 2.

NG: Refer to "VEHICLE DOES NOT CREEP FORWARD IN "D" POSITION ", "VEHICLE CANNOT BE STARTED FROM D1 ".
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

Is any malfunction detected by self-diagnostic results?

YES: Check the malfunctioning system. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

NO: GO TO 3.
CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to "CHECKING THE A/T FLUID (ATF) ".

OK or NG

OK: GO TO 4.

NG: Refill ATF.
CHECK LINE PRESSURE
- Check line pressure at the engine stall point. Refer to "LINE PRESSURE TEST ".
OK or NG

OK: GO TO 7.

NG - 1: Line pressure high. GO TO 5.

NG - 2: Line pressure low. GO TO 6.
DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. Disassemble A/T. Refer to "DISASSEMBLY ".
3. Check the following.
  - Oil pump assembly. Refer to "OIL PUMP ".
OK or NG

OK: GO TO 7.

NG: Repair or replace damaged parts.
DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. Disassemble A/T. Refer to "DISASSEMBLY ".
3. Check the following.
  - Oil pump assembly. Refer to "OIL PUMP ".
  - Power train system. Refer to "DISASSEMBLY ".
  - Transmission case. Refer to "DISASSEMBLY ".
OK or NG

OK: GO TO 7.

NG: Repair or replace damaged parts.
CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. Check A/T fluid condition. Refer to "FLUID CONDITION CHECK ".
OK or NG

OK: GO TO 8.

NG: GO TO 11.
DETECT MALFUNCTIONING ITEM
- Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "SYMPTOM CHART " (Symptom No.12).
OK or NG

OK: GO TO 9.

NG: Repair or replace damaged parts.
CHECK SYMPTOM
Check again. Refer to "CRUISE TEST - PART 1 ", "CRUISE TEST - PART 2 ".

OK or NG

OK: INSPECTION END

NG: GO TO 10.
PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to "TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES ".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG

OK: INSPECTION END

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 " (Symptom No.12).
OK or NG

OK: GO TO 9.

NG: Repair or replace damaged parts.