LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Cellular, Entertainment, And Navigation - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Wireless Communication Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    A purchased data plan through OnStar is required to use the in vehicle Wi-Fi Hotspot.

  1. Under settings verify the vehicles Wi-Fi Hotspot is turned ON.
  2. Ignition OFF, disconnect the coax cable connector at the T4T Wireless Communication Antenna - WLAN and at the A11 Radio.
  3. Verify the coax cable passes the coax cable component test. Refer to Component Testing.
    • If the coax cable does not pass the test 

      Replace the coax cable

    • Go to next step: If the coax cable passes the test 
  4. Test or replace the T4T Wireless Communication Antenna - WLAN.
  5. Verify a mobile device can be connected to the vehicles Hotspot.
    • If a mobile device cannot be connected to the vehicles Hotspot. 

      Replace the A11 Radio.

    • Go to next step: If a mobile device can be connected to the vehicles Hotspot. 
  6. All OK.
scientia non olet · About LEMON Manuals