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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 626 (NAVIGATION SYSTEM - DIAGNOSTICS)GPS MARK IS NOT DISPLAYEDINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CABIN 
    1. Check the cabin for any object that might interrupt radio reception on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears.

      HINT:

      GPS works using extremely weak radio waves originating from satellites. If the signal is interrupted by obstructions or another radio wave, the GPS system may not be able to properly receive the signal.

      Standard: Mark appears. 

    1. OK: NORMAL OPERATION 
    2. NG: Go to next step. 
  2. CHECK SURROUNDINGS 
    1. Check if the vehicle is in a location where GPS signal reception is bad. If the vehicle is in such a place, move it elsewhere and check if the GPS mark reappears.

      HINT:

      • GPS uses 24 satellites in 6 orbits so that at any time 5 satellites will be in line-of-sight of your vehicle.
      • GPS signals may not be received, however, based on surroundings, vehicle direction, and time.
      • The following illustrations show some conditions where it may be difficult to receive GPS signals.
        Fig 1: Views Of GPS Signals Receiving
        G02895049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: GPS mark is displayed. 

    1. OK: RETURNS TO NORMAL 
    2. NG: Go to next step. 
  3. NAVIGATION CHECK MODE (GPS INFORMATION) 
    1. Enter the "Navigation Check" mode (GPS information) (see NAVIGATION CHECK MODE (GPS INFORMATION) ).
    2. Check how many of the following codes occur in the "STS" column.

      For DENSO Models: T, P 

      For AISIN AW Models: 04H, 08H 

      Standard: At least 3 codes occur. 

      Fig 2: Navigation Check Mode - GPS Information
      G02895050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE RADIO AND NAVIGATION ASSY (SEE  REPLACEMENT  ) 
    2. NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (see  PROBLEM SYMPTOMS TABLE  ) 
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.