Component Function Check
WARNING: This page is about a different car, the 2018 Nissan Maxima. 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
Proceed 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
Proceed to Diagnosis Procedure .
- CHECK IGNITION SIGNAL FUNCTION
Without CONSULT
- Let engine idle.
- Read the voltage signal between ECM harness connector terminals with an oscilloscope.
ECM
Voltage signal
+
-
Connector
Terminal
Connector
Terminal
F14
103
E10
152
104
106
107
113
114
NOTE: The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES
INSPECTION END
NO
Proceed to Diagnosis Procedure .