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Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Cellular Systems, Entertainment Systems & Navigation Systems) >> Diagnostic Information and Procedures >> Cellular Telephone Conversation Partner Cannot Be Heard >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: You must perform the Circuit/System Verification before proceeding with Circuit/System Testing.
  1. Ignition OFF, disconnect the X1 connector at the K82 Mobile Telephone Control Module and the X1 connector at the A11 Radio.
  2. Ignition ON, test for less than 0.3 V between the audio signal circuit terminal 6 X1 at the K82 Mobile Telephone Control Module and ground.
    • If greater than the specified range, test the audio signal circuit for a short to voltage.
  3. Ignition ON, test for less than 0.3 V between the audio signal circuit terminal 15 X1 at the K82 Mobile Telephone Control Module and ground.
    • If greater than the specified range, test the audio signal circuit for a short to voltage.
  4. Test for infinite resistance between the audio signal circuit terminal 6 X1 at the K82 Mobile Telephone Control Module and ground.
    • If less than the specified range, test the audio signal circuit for a short to ground.
  5. Test for infinite resistance between the audio signal circuit terminal 15 X1 at the K82 Mobile Telephone Control Module and ground.
    • If less than the specified range, test the audio signal circuit for a short to ground.
  6. Test for less than 5 Ω between the audio signal circuit terminal 6 X1 at the K82 Mobile Telephone Control Module and the audio signal circuit terminal 20 X1 at the A11 Radio.
    • If greater than the specified range, test the audio signal circuit for an open/high resistance.
  7. Test for less than 5 Ω between the audio signal circuit terminal 15 X1 at the K82 Mobile Telephone Control Module and the audio signal circuit terminal 6 X1 at the A11 Radio.
    • If greater than the specified range, test the audio signal circuit for an open/high resistance.
  8. Test for infinite resistance between the shield ground circuit terminal 5 X1 at the K82 Mobile Telephone Control Module and audio signal circuit terminal 6 X1 and the audio signal circuit terminal 15 X1.
    • If less than the specified range, test short circuit between each signal circuit and the shield ground circuit.
  9. If all circuits test normal, replace the K82 Mobile Telephone Control Module and verify that the customer concern is not still present.
    • If the customer concern is still present, replace the A11 Radio.
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