Remote Keyless Entry Receiver Check

1. Turn ignition switch OFF.
2. Check remote keyless entry receiver connector and ground signal with oscilloscope.
   SIGNAL VALUE REFERENCE
   
   

   Terminals			Keyfob condition	Signal (Reference value)
   (+)		(-)
   Remote keyless entry receiver connector	Terminal
   M23	2	Ground	No function
   			Any button is pressed

   Fig 1: Checking Remote Keyless Entry Receiver Output Signal

   

OK or NG 

OK >> Remote keyless entry receiver circuit is OK.

NG >> GO TO 2.

1. Disconnect remote keyless entry receiver connector.
2. Check voltage between remote keyless entry receiver connector M23 terminal 4 and ground.
   CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS
   
   

   Terminals			Voltage (V) (Approx.)
   (+)		(-)
   Remote keyless entry receiver connector	Terminal
   M23	4	Ground	4.5

OK or NG 

OK >> GO TO  4.

NG >> GO TO 3.

Fig 2: Checking Remote Keyless Entry Receiver Input Voltage

1. Disconnect BCM connector.
2. Check continuity between BCM connector (A) M18 terminal 19 and remote keyless entry receiver connector (B) M23 terminal 4.
   CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS
   
   

   A		B		Continuity
   BCM connector	Terminal	Remote keyless entry receiver connector	Terminal
   M18	19	M23	4	Yes

3. Check continuity between BCM connector (A) M18 terminal 19 and ground.
   CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS
   
   

   A		Ground	Continuity
   BCM connector	Terminal
   M18	19		No

   Fig 3: Checking Remote Keyless Entry Receiver Power Supply Circuit

   

OK or NG 

OK >> Replace BCM. Refer to " REMOVAL AND INSTALLATION OF BCM  "  .

NG >> Repair or replace the harness.

Check continuity between remote keyless entry receiver connector M23 terminal 1 and ground.

OK or NG 

OK >> GO TO  6.

NG >> GO TO 5.

Fig 4: Checking Remote Keyless Entry Receiver Ground Circuit

Check continuity between BCM connector (A) M18 terminal 18 and remote keyless entry receiver connector (B) M23 terminal 1.

OK or NG 

OK >> Replace BCM. Refer to " REMOVAL AND INSTALLATION OF BCM  "  .

NG >> Repair or replace the harness.

Fig 5: Checking Remote Keyless Entry Receiver Ground Circuit

1. Check continuity between BCM connector (A) M18 terminal 20 and remote keyless entry receiver connector (B) M23 terminal 2.
   CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS
   
   

   A		B		Continuity
   BCM connector	Terminal	Remote keyless entry receiver connector	Terminal
   M18	20	M23	2	Yes

2. Check continuity between BCM connector (A) M18 terminal 20 and ground.
   CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS
   
   

   A		Ground	Continuity
   BCM connector	Terminal
   M18	20		No

   Fig 6: Checking Remote Keyless Entry Receiver Signal Circuit

   

OK or NG 

OK >> Replace remote keyless entry receiver. Refer to "REMOVAL AND INSTALLATION OF REMOTE KEYLESS ENTRY RECEIVER ".

NG >> Repair or replace harness.