Frontier 2WD V6-4.0L (VQ40DE) (2009)
Ignition Switch: Testing and Inspection
Key Switch (BCM Input)
KEY SWITCH (BCM INPUT)
Diagnosis Procedure
1.CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-III
Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-III. Refer to See: Body and Frame/Locks/Power Locks/Testing and
Inspection/Scan Tool Testing and Procedures/Common Item See: Body and Frame/Locks/Power Locks/Testing and Inspection/Scan Tool Testing and
Procedures/Door Lock, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
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When key is inserted to ignition key cylinder:
KEY ON SW : ON
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When key is removed from ignition key cylinder:
KEY ON SW : OFF
Without CONSULT-III
Check voltage between BCM connector M18 terminal 37 and ground.
Is the inspection result normal?
YES - Key switch (insert) circuit is OK.
NO - GO TO 2
2.CHECK KEY SWITCH (INSERT)
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check continuity between key switch terminals.