Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSINFINITI2006FX35 AWDREPAIR AND DIAGNOSISBODY & FRAMEEXTERIOR BODY PANELSBODY, LOCK & SECURITY SYSTEMREMOTE KEYLESS ENTRY SYSTEMCHECK DOOR SWITCHCHECK BACK DOOR SWITCH

2006 Infiniti FX35 AWD

Check Back Door Switch

2006 Infiniti FX35 AWDSECTION Check Back Door Switch

CHECK BACK DOOR SWITCH INPUT SIGNAL

With CONSULT-II

Check ("BACK DOOR SW") in "DATA MONITOR" mode with CONSULT-II.

DATA MONITOR CONDITION

Monitor item	Condition	DATA MONITOR
BACK DOOR SW	OPEN then CLOSE	ON then OFF

Fig 1: CONSULT-II DISPLAY - "BACK DOOR SW"

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

Without CONSULT-II

Check voltage between BCM connector and ground.

BCM CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Connector	Terminals (Wire color)		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
B14	58 (L)	Ground	OPEN	0
B14	58 (L)	Ground	CLOSE	9

OK or NG

OK : Back door switch circuit is OK.

NG : GO TO 2.

Fig 2: Identifying Voltage Between BCM Connector And Ground

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

CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and back door closure motor connector.
3. Check continuity between BCM connector B14 terminal 58 and back door closure motor connector D109 terminal 7.
  58 (L) - 7 (L) : Continuity should exist.
4. Check continuity between BCM connector B14 terminal 58 and ground.
  58 (L) - Ground : Continuity should not exist.
  
  Fig 3: Identifying Continuity Between BCM Connector B14 Terminal 58 And Back Door Closure Motor Connector D109 Terminal 7
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : GO TO 3.

NG : Repair or replace harness.
CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109 terminal 8 and ground.

8 (B) - Ground : Continuity should exist.

OK or NG

OK : GO TO 4.

NG : Repair or replace harness.

Fig 4: Identifying Continuity Between Back Door Closure Motor Connector D109 Terminal 8 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK BACK DOOR SWITCH

Check continuity between back door closure motor D109 terminals 7 and 8.

CONTINUITY SPECIFICATIONS

Terminals		Back door condition	Continuity
7	8	Open	Yes
7	8	Close	No

OK or NG

OK : GO TO 5.

NG : Replace back door closure motor.

Fig 5: Identifying Continuity Between Back Door Closure Motor D109 Terminals 7 And 8

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

CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
  58 (L) - Ground : Approx. 9V
OK or NG

OK : Check condition of harness and connector.

NG : Replace BCM.

Fig 6: Identifying Voltage Between BCM Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.