Circuit/System Testing
WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 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 digital radio test antenna to the DRR.
- 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.