Diagnostic Procedure

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to "SELF-DIAGNOSTIC RESULT MODE "

Is any malfunction of the "U1000 CAN COMM CIRCUIT" indicated?

YES: Check the CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".

No: GO TO 2.

CHECK INPUT SIGNAL

With CONSULT-III

Turn ignition switch ON. (Do not start engine.)
Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
Read out the value of "ACC PEDAL OPEN".

ACC PEDAL OPEN DISPLAY VALUE

Item name	Condition	Display value (Approx.)
ACC PEDAL OPEN	Release accelerator Pedal.	0.0/8
	↓	↓
	Fully depressed accelerator pedal	8.0/8

OK or NG

OK: GO TO 4.

NG: GO TO 3.

CHECK DTC WITH ECM
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT-III. Refer to "SELF-DIAG RESULTS MODE "
OK or NG

OK: GO TO 4.

NG: Check the DTC Detected Item. Go to "SELF-DIAG RESULTS MODE ".
CHECK DTC
Perform "DTC Confirmation Procedure". Refer to "DTC CONFIRMATION PROCEDURE ".

OK or NG

OK: INSPECTION END

NG: Repair or replace damaged parts.