Component Function Check
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES
With CONSULT: GO TO 2 .
YES
Without CONSULT: GO TO 3 .
NO
Go to Diagnosis Procedure .
- CHECK IGNITION SIGNAL FUNCTION
WITH CONSULT
- Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT.
- Check that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES
INSPECTION END
NO
Go to Diagnosis Procedure .
- CHECK IGNITION SIGNAL FUNCTION
WITHOUT CONSULT
- Let engine idle.
- Read the voltage signal between ECM harness connector terminals under the following conditions with an oscilloscope.
ECM
Voltage signal
Cylinder
+
-
Connector
Terminal
Connector
Terminal
1
F79
95
E16
152
2
91
3
92
4
104
5
102
6
94
7
105
8
101
NOTE: The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES
INSPECTION END
NO
Go to Diagnosis Procedure .