LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2011 >> Equator RMZ-4 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Security And Locks >> Diagnostic Information and Procedures >> Remote Keyless Entry Receiver Circuit Check >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step Action YES NO
CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL 
  1. Turn ignition switch OFF.
  2. Check remote keyless entry receiver signal with an oscilloscope.
G06443750G06443752Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.
G06443750G06443752Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Is the inspection result normal? 
GO TO 2 GO TO 4
REMOTE KEYLESS ENTRY RECEIVER 5-VOLT CIRCUIT INSPECTION 
Check voltage between remote keyless entry receiver connector M120 terminal 4 and ground.
4 - Ground: Approx. 5 volt. 
Is the inspection result normal? 
GO TO 3 GO TO 4
REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT INSPECTION 
Check continuity between remote keyless entry receiver connector M120 terminal 1 and ground.
1 - Ground: Continuity should exist. 
Is the inspection result normal? 
Replace remote keyless entry receiver. GO TO 4
HARNESS INSPECTION BETWEEN BCM AND RKE RECEIVER 
  1. Disconnect remote keyless entry receiver and BCM connectors.
  2. Check continuity between BCM connector M18 terminals 18, 19, 20 and remote keyless entry receiver connector M120 terminals 1, 2, 4.
G06443753Courtesy of SUZUKI OF AMERICA CORP.

1 - 18: Continuity should exist. 
2 - 20: Continuity should exist. 
4 - 19: Continuity should exist. 
  1. 3. Check continuity between remote keyless entry receiver connector M120 terminals 1, 2, 4 and ground.

    1 - Ground: Continuity should not exist. 

    2 - Ground: Continuity should not exist. 

    4 - Ground: Continuity should not exist. 


Is the inspection result normal? 
Replace remote keyless entry receiver. Repair or replace the harness between the remote keyless entry receiver and BCM.