Circuit/System Verification

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

Determine the LIN device that is not communicating. Refer to Control Module U Code List .
Verify that DTC B1325, B1330, B1370, B1380, B1424, B1440, B1441, B1517, C0800, C0899, C12E1, P0560 or P0562 is not set.
- If any of the DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If none of the DTCs are set
Verify that DTC U0100-U02FF is not set.
- If any of the DTCs are set
  Refer to DTC U0100-U02FF (except U01B0) .
- If none of the DTCs are set
Refer to Circuit/System Testing.