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Home >> Mitsubishi >> 2010 >> Lancer ES, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (MITSUBISHI Multi-Communication System (MMCS) - Lancer Evolution) >> Symptom Procedures >> Inspection Procedure 7: GPS Signal Can Not Be Received >> Diagnosis

Inspection Procedure 7: GPS Signal Can Not Be Received: Diagnosis

WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
  1. STEP 1. Confirmation in MMCS service mode 

    Perform "Network/Connect Line Check" in the MMCS service mode to check that the communication and wire connection with the GPS antenna are OK. (Refer to PRECAUTIONS ON SERVICING MMCS  .)

    Q: Is the check result normal? 

    • YES:  Go to Step 2.
    • NO:  Check that the GPS antenna is correctly connected to the multivision display, and go to  Step 3.
  2. STEP 2. Check for the vehicle's current position. 

    Check that the vehicle is parked on a well-ventilated place.

    Q: Is the vehicle parked on a well-ventilated place? 

    • YES:  Go to Step 3.
    • NO:  Move the vehicle to a well-ventilated area.
  3. STEP 3. Confirming GPS signal reception 
    1. Start the multivision display.
    2. Press the [INFO] button.
    3. Select [Vehicle Position].
    4. Wait for 5 minutes, and then check whether GPS signal can be received.

      Q: Can GPS signal be received? 

      • YES:  The diagnosis is complete. (There is no failure)
      • NO:  Go to Step 4.
  4. STEP 4. Substitute a known good multivision display, and check the trouble symptom. 
    1. Temporarily replace the multivision display.
    2. Start the multivision display.
    3. Press the [INFO] button.
    4. Select [Vehicle Position].
    5. Check if the GPS signals are being received after 5 minutes have elapsed.

      Q: Is the check result normal? 

      • YES:  Replace the multivision display.
      • NO:  Replace the GPS antenna.