Diagnostic Procedure

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

CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

Is any malfunction detected by self-diagnosis?

YES: Check the malfunctioning system. Refer to "DISPLAY ITEMS LIST ".

No: GO TO 2.
CHECK ENGINE IDLE SPEED
Check the engine idle speed. Refer to "IDLE SPEED AND IGNITION TIMING CHECK ".

OK or NG

OK: GO TO 3.

NG: Repair.
CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to "CHECKING CVT FLUID ".

OK or NG

OK: GO TO 4.

NG: Refill CVT fluid.
CHECK LINE PRESSURE
Check line pressure at idle. Refer to "LINE PRESSURE TEST ".

OK or NG

OK: GO TO 5.

NG: Check the malfunctioning item. Refer to "JUDGEMENT OF LINE PRESSURE TEST ".
CHECK SYMPTOM
Check again. Refer to "CHECK AT IDLE ".

OK or NG

OK: INSPECTION END

NG: GO TO 6.
CHECK TCM
1. Check TCM input/output signals. Refer to "TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES ".
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG

OK: Replace the transaxle assembly. Refer to "REMOVAL AND INSTALLATION ".

NG: Repair or replace damaged parts.