2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

AV Communication Line Check

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK A/C AND AV SWITCH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect display unit connector and A/C and AV switch connector.
    3. Check continuity between display unit and A/C and AV switch.
      CONTINUITY CHECK CHART

      Terminals Continuity
      Display unit A/C and AV switch
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      M39 11 (L/G) M48 6 (L/G) Yes
      13 (L/R) 8 (L/R)
      12 7
      Fig 1: Checking Continuity Between Display Unit And A/C And AV Switch
      G03492448Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between display unit and ground.
      CONTINUITY CHECK CHART

      Terminals Continuity
      Display unit Ground
      Connector Terminal (Wire color)
      M39 11 (L/G) No
      13 (L/R)
      Fig 2: Checking Continuity Between Display Unit And Ground
      G03492449Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 2.
    2. NG: Replace harness.
  2. CHECK AV COMMUNICATION SIGNAL 
    1. Connect display unit connector and A/C and AV switch connector.
    2. Turn ignition switch ON.
    3. Check the signal between display unit harness connector M39 terminals 11 (L/G), 13 (L/R) and ground with CONSULT-II or oscilloscope.

      11 (L/G), 13 (L/R) - Ground: Refer to " TERMINALS AND REFERENCE VALUE FOR DISPLAY UNIT   ". 

      Fig 3: Checking Signal Between Display Unit Harness Connector And Ground
      G03492450Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: INSPECTION END.
    2. NG: Replace A/C and AV switch.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.