LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 136 (Power Outlet System) >> Diagnostic Information and Procedures >> Mobile Device Wireless Charger Malfunction (without EL 51755) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Circuit/System Verification must be performed before Circuit/System Testing

Circuit/System Testing - A

  1. Ignition OFF/Vehicle OFF, disconnect the harness connector at the T22 Mobile Device Wireless Charger Module. Ignition ON/Vehicle in Service Mode.
  2. Verify the wireless charger icon is OFF.
    • If the wireless charger icon is ON 
    1. Ignition OFF/Vehicle OFF, disconnect the X3 harness connector at the K9 Body Control Module.
    2. Test for infinite resistance between the signal circuit terminal 23 and ground
    • If less than infinite resistance, repair the short to ground on the circuit.
    • If infinite resistance, replace the K9 Body Control Module.
    • If the wireless charger icon is OFF 
  3. Test or replace the T22 Mobile Device Wireless Charger Module.

Circuit/System Testing - B

  1. Using a known good mobile wireless-charging equipped device, place the device on the wireless charger active surface and verify the device is charging.
    • If the device charges 

      The wireless charging system is operating normally. The customers mobile wireless charging adapter or device may not be compatible or is defective.

    • If the device does not charge 
  2. Ignition OFF/Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the T22 Mobile Device Wireless Charger Module. It may take up to 2 minutes for all vehicle systems to power down.
  3. Test for less than 10 Ω between the ground circuit terminal 2 and ground.
    • If greater than 10 Ω 
    1. Ignition OFF/Vehicle OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • If less than 10 Ω 
  4. Ignition ON/Vehicle in Service Mode, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.
    • If the test lamp does not illuminate and the circuit fuse is good 
    1. Ignition OFF/Vehicle OFF.
    2. Test for less than 2 Ω in the ignition circuit end to end.
    • If the test lamp does not illuminate and the circuit fuse is open 
    1. Ignition OFF/Vehicle OFF.
    2. Test for infinite resistance between the ignition circuit terminal 1 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the T22 Mobile Device Wireless Charger Module.
    • If the test lamp illuminates 
  5. Test or replace the T22 Mobile Device Wireless Charger Module.

Circuit/System Testing - C

  1. Ignition OFF/Vehicle OFF, disconnect the harness connector at the T22 Mobile Device Wireless Charger Module.
  2. Ignition ON/Vehicle in Service Mode, connect a 3 A fused jumper wire between the signal circuit terminal 3 and ground. Verify the wireless charger icon is on.
    • If the wireless charger icon is OFF 
    1. Ignition OFF/Vehicle OFF, disconnect the X3 harness connector at the K9 Body Control Module, ignition ON.
    2. Test for less than 1V between the signal circuit and ground.
      • If 1V or greater, repair the short to voltage on the circuit.
      • If less than 1V
    3. Test for less than 2 Ω in the signal circuit end to end.
    • If 2 Ω or greater, repair the open/high resistance in the circuit.
    • If less than 2 Ω, replace the K9 Body Control Module
    • If the wireless charger icon is ON 
  3. Test or replace the T22 Mobile Device Wireless Charger Module.
scientia non olet · About LEMON Manuals