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 MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSANTI-THEFT SYSTEM - VEHICLE SECURITY (THEFT WARNING) SYSTEMVEHICLE SECURITY (THEFT WARNING) SYSTEMDIAGNOSTIC PROCEDURE 1

2004 Nissan-Datsun Altima S, Automatic

Diagnostic Procedure 1

2004 Nissan-Datsun Altima S, AutomaticSECTION Diagnostic Procedure 1

1 - 1 DOOR SWITCH CHECK

CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
- Check door switch ("DOOR SW") in "DATA MONITOR" mode with CONSULT-II.
  When door is open : DOOR SW ON
  
  When door is closed : DOOR SW OFF
  
  Fig 1: Scan Tool Display "Data Monitor"
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II
- Check voltage between BCM harness connector M21 terminals 10 (P/L), 11 (R/B) or 14 (SB) and ground.
  
  Fig 2: BCM Harness Connector & Ground Specifications Table
  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.