Circuit/System Testing
WARNING: This page is about a different car, the 2009 Saturn Outlook, 2009 GMC Acadia, 2009 Chevrolet Traverse, and 2009 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the antenna coax from the DRR. Connect the EL-48028 to the DRR. See Special Tools .
- Radio ON, tuned to XM, verify DTC B1259 is not set.
- If the DTC is set, replace the DRR.
- Ignition OFF, reconnect the antenna coax to the DRR, disconnect the digital radio antenna coax from the digital radio antenna.
- Ignition ON, test for 4.5-5.5 V between the antenna coax center terminal and the coax outer shield.
- If not within the specified range, replace the antenna coax.
- If all circuits test normal, replace the digital radio antenna.