Ignition Knob Switch Check

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

CHECK IGNITION KNOB SWITCH INPUT SIGNAL

With CONSULT-II

Display "PUSH SW" on DATA MONITOR screen, and check if ON/OFF display is linked to ignition switch operation.

MONITOR ITEM CONDITION

Monitor item	Condition
PUSH SW	Ignition switch is pressed: ON
PUSH SW	Ignition switch is released: OFF

Fig 1: DATA MONITOR Mode In CONSULT-II Screen

Without CONSULT-II

Turn ignition switch OFF.
Disconnect Intelligent Key unit connector.

Check voltage between Intelligent Key unit and ground.

CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Terminals			Condition of key switch	Voltage (V) (Approx.)
(+)		(-)
Intelligent Key unit connector	Terminal	(-)
M52	27	Ground	Ignition switch is pressed	Battery voltage
M52	27	Ground	Ignition switch is released	0

Fig 2: Checking Ignition Knob Switch Input Signal

OK or NG

OK >> Ignition knob switch circuit is OK.

NG >> GO TO 2.

CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect key switch and ignition knob switch connector.

Check voltage between key switch and ignition knob switch and ground.

CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Terminals			Voltage (V) (Approx.)
(+)		(-)
Key switch and ignition knob switch connector	Terminal	(-)
M73	4	Ground	Battery voltage

OK or NG

OK >> GO TO 3.

NG >> Repair or replace key switch and ignition knob switch power supply circuit.

Fig 3: Checking Ignition Knob Switch Power Supply Circuit

CHECK IGNITION KNOB SWITCH

Check continuity of ignition knob switch.

CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS

Terminal		Condition of key switch	Continuity
Key switch and ignition knob switch		Condition of key switch	Continuity
3	4	Ignition switch is pressed	Yes
3	4	Ignition switch is released	No

OK or NG

OK >> GO TO 4.

NG >> Replace key switch and ignition knob switch.

Fig 4: Checking Ignition Knob Switch

CHECK IGNITION KNOB SWITCH CIRCUIT

Disconnect Intelligent Key unit connector.

Check continuity between Intelligent Key unit connector (A) terminal 27 and key switch and ignition knob switch connector (B) terminal 3.

CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS

A		B		Continuity
Intelligent Key unit connector	Terminal	Key switch and ignition knob switch connector	Terminal	Continuity
M52	27	M73	3	Yes

Check continuity between Intelligent Key unit connector (A) terminal 27 and ground.

CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS

A		Ground	Continuity
Intelligent Key unit connector	Terminal
M52	27		No

Fig 5: Checking Ignition Knob Switch Circuit

OK or NG

OK >> Check the condition of harness and harness connector.

NG >> Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.