Daytime Light Control Does Not Operate Properly (Normal Headlamps Operate Properly)

WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DAYTIME LIGHT RELAY 1 POWER SUPPLY CIRCUIT
1. Remove daytime light relay 1.
2. Check voltage between daytime light relay 1 harness connector E103 terminals 2, 5 and ground.
2, 5 - Ground: Battery voltage should exist .

OK or NG

OK: GO TO 2.

NG: Repair harness or connector.

Fig 1: Checking Voltage Between Daytime Light Relay 1 Harness Connector E103 Terminals 2, 5 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DAYTIME LIGHT RELAY 1
1. Apply battery voltage to daytime light relay 1 terminal 2 and ground terminal 1.
2. Check continuity between terminals 3 and 5.
3-5: Continuity should exist .

OK or NG

OK: GO TO 3.

NG: Replace daytime light relay 1.

Fig 2: Checking Continuity Between Terminals 3 And 5
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK INPUT SIGNAL
1. Connect daytime light relay 1.
2. Start engine and release parking brake. Headlamp switch OFF.
3. Select "IPDM E/R" on CONSULT-II. With data monitor, make sure "DTRL REQ" turns ON-OFF linked with operation of parking brake switch.
  Parking brake ON: DTRL REQ ON
  
  Parking brake OFF: DTRL REQ OFF
  
  OK or NG
  
  OK: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".
  
  NG: GO TO 4.
  
  Fig 3: Consult-II - Scale Tool Display Data Monitor
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. CHECKING CAN COMMUNICATIONS
  Select "BCM" on CONSULT-II and perform self-diagnosis for BCM.
  
  Displayed self-diagnosis results
  
  NO DTC: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
  
  CAN COMM CIRCUIT: Check BCM CAN communication system.
  
  Refer to "CAN COMMUNICATION INSPECTION USING CONSULT-II (SELF-DIAGNOSIS) ".
  
  Fig 4: CONSULT II Display - Self-Diag Results
  Courtesy of NISSAN MOTOR CO., U.S.A.