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 REMOTE KEYLESS ENTRY RECEIVER

2006 Infiniti FX35 AWD

Check Remote Keyless Entry Receiver

2006 Infiniti FX35 AWDSECTION Check Remote Keyless Entry Receiver

CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL

Turn ignition switch OFF.

Check remote keyless entry receiver connector M98 terminal 2 (L) and ground signal with oscilloscope.

BCM CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Connector	Terminal (Wire color)		Condition of keyfob	Voltage (Reference value)
Connector	(+)	(-)	Condition of keyfob	Voltage (Reference value)
M98	2	Ground	No function
M98	2	Ground	Any button is pressed

Fig 1: Identifying Remote Keyless Entry Receiver Connector M98 Terminal 2 (L) And Ground

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

OK or NG

OK : Remote keyless entry receiver circuit is OK.

NG : GO TO 2.

CHECK REMOTE KEYLESS ENTRY RECEIVER INPUT VOLTAGE
1. Disconnect remote keyless entry receiver connector.
2. Check voltage between remote keyless entry receiver connector M98 terminal 4 (R) and ground.
  4 (Y) - Ground : Approx. 4.5V
  
  Fig 2: Identifying Voltage Between Remote Keyless Entry Receiver Connector M98 Terminal 4 (R) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : GO TO 4.

NG : GO TO 3.
CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between remote keyless entry receiver connector M78 terminal 4 (R) and BCM connector M1 terminal 19 (R).
  4 (R) - 19 (R) : Continuity should exist.
3. Check continuity between remote keyless entry receiver connector M78 terminal 4 (R) and ground.
  4 (R) - Ground : Continuity should not exist.
  
  Fig 3: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 4 (R) And BCM Connector M1 Terminal 19 (R)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : Check harness connection.
- If it is OK, replace BCM.
- If it is NG, repair or replace malfunction part.
NG : Repair or replace the harness.
CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT
1. Check continuity between remote keyless entry receiver connector M78 terminal 1 (B) and ground.
  1 (B) - Ground : Continuity should exist.
  
  Fig 4: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 1 (B) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : GO TO 6.

NG : GO TO 5.
CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT
1. Check continuity between remote keyless entry receiver connector M78 terminal 1 (B) and BCM connector M1 terminal 18 (B)
  1 (B) - 18 (B) : Continuity should exist.
OK or NG

OK : Check harness connection.
- If it is OK, replace BCM.
- If it is NG, repair or replace malfunction part.
NG : Repair or replace the harness.

Fig 5: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 1 (B) And BCM Connector M1 Terminal 18 (B)
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT
1. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and BCM connector M1 terminal 20 (Y).
  2 (Y) - 20 (Y) : Continuity should exist.
2. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and ground.
  2 (Y) - Ground : Continuity should not exist.
OK or NG

OK : Check harness connection.
- If it is OK, replace remote keyless entry receiver.
- If it is NG, repair or replace malfunction part.
NG : Repair or replace harness.

Fig 6: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 2 (Y) And BCM Connector M1 Terminal 20 (Y)
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.