CVT Device (Detention Switch Key) Check

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 CVT DEVICE (DETENTION SWITCH KEY) INPUT SIGNAL

Turn ignition switch OFF.

While pressing the ignition knob switch, check voltage between Intelligent Key unit harness connector M52 terminal 39 and ground.

CVT DEVICE (DETENTION SWITCH KEY) INPUT SIGNAL

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
M52	39	Ground	Selector lever is in "P" position	Battery voltage
M52	39	Ground	Other than above	0

Fig 1: Checking Voltage Between Intelligent Key Unit Harness Connector M52 Terminal 39 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace Intelligent Key unit. Refer to "REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT ".

NG: GO TO 2.

CHECK CVT DEVICE (DETENTION SWITCH KEY) POWER SUPPLY CIRCUIT
1. Disconnect CVT device (detention switch key) connector.
2. While pressing the ignition knob switch, check voltage between CVT device (detention switch key) harness connector M34 terminal 5 and ground.
  5 - Ground: Battery voltage.
Fig 2: Checking Voltage Between CVT Device (Detention Switch Key) Harness Connector M34 Terminal 5 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 3.

NG: Repair or replace harness or ignition knob switch.

CHECK CVT DEVICE (DETENTION SWITCH KEY)

Check continuity between CVT device (detention switch key) terminals 5 and 6.

CVT DEVICE (DETENTION SWITCH KEY)

Component	Terminals		Condition	Continuity
CVT device (detention switch key)	5	6	Selector lever is in "P" position	Yes
CVT device (detention switch key)	5	6	Other than above	No

Fig 3: Checking Continuity Between CVT Device (Detention Switch Key) Terminals 5 And 6

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 4.

NG: Replace CVT device (detention switch key).

CHECK CVT DEVICE (DETENTION SWITCH KEY) CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit harness connector (A) M52 terminal 39 and CVT device (detention switch key) harness connector (B) M34 terminal 6.
  39 - 6: Continuity should exist.
3. Check continuity between Intelligent Key unit harness connector (A) M52 terminals 39 and ground.
  39 - Ground: Continuity should not exist.
Fig 4: Checking Continuity Between Intelligent Key Unit Harness Connector (A) M52 Terminals 39 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: CVT device (detention switch key) circuit is OK.

NG: Repair or replace harness.