XM Band Inoperative - antenna cable coax code communication data diagnostics DTC electrical entertainment identification information lock module no number operation performance radio receiver signal
| Subject: | XM band inoperative - antenna cable coax communication data diagnosis DTC electrical entertainment identification information lock module no number operation performance radio receiver reception signal SMU speaker station U1000 U2K |
| Models: | . |
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
XM radio inoperative - UPO radio - going through the bands, you may see only 1 or 2, not XM1 or XM2, after FM and AM. There may also be a current U1000 in the digital radio receiver, not the radio.
Recommendation/Instructions:
Set up radio> UPO> USA/CA> L band NO then turn off unit until DRR goes to sleep on class 2 then retest.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.
