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

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

CHECK DAYTIME LIGHT RELAY POWER SUPPLY CIRCUIT
1. Remove daytime light relay.
2. Check voltage between daytime light relay harness connector E103 terminals 2, 5 and ground.
  
  Fig 1: Checking Voltage Between Daytime Light Relay Harness Connector E103 Terminals 2, 5 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  2, 5 - Ground: Battery voltage should exist.
OK or NG

OK: GO TO 2.

NG: Repair harness or connector.
CHECK DAYTIME LIGHT RELAY
1. Apply battery voltage to daytime light relay terminal 2 and ground terminal 1.
2. Check continuity between terminals 3 and 5.
  3 - 5: Continuity should exist.
  
  Fig 2: Checking Continuity Between Terminals 3 And 5
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 3.

NG: Replace daytime light relay.
CHECK DAYTIME LIGHT RELAY CIRCUIT
1. Disconnect front combination lamp LH connector.
2. Check continuity between daytime light relay connector E103 terminal 3 and front combination lamp LH harness connector E11 terminal 3.
  3 - 3: Continuity should exist.
  
  Fig 3: Checking Continuity Between Daytime Light Relay Connector E103 Terminal 3 And Front Combination Lamp LH Harness Connector E11 Terminal 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 4.

NG: Repair harness or connector.
CHECK INPUT SIGNAL
1. Connect daytime light relay and front combination lamp LH connector.
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.
  
  Fig 4: CONSULT-II Display - DATA MONITOR
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  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 5.
CHECKING CAN COMMUNICATIONS
Select "BCM" on CONSULT-II and perform self-diagnosis for BCM.

Fig 5: CONSULT II Display - Self-Diag Results
Courtesy of NISSAN MOTOR CO., U.S.A.

Displayed self-diagnosis results

NO DTC: Replace BCM. Refer to "BCM ".

CAN COMM CIRCUIT: Check BCM CAN communication system.

Refer to "CAN COMMUNICATION INSPECTION USING CONSULT-II (SELF-DIAGNOSIS) ".