G6 L4-2.4L (2007)
Step 9 - Step 18
The numbers below refer to the step numbers on the diagnostic table.
2. A partial malfunction in the low speed GMLAN serial data circuits uses a different procedure from a total malfunction of the low speed GMLAN
data circuits. Refer to Data Link References to identify which modules communicate on the low speed GMLAN serial data circuits. See: Data
Link Connector/Testing and Inspection
3. The DTC U2100 may be retrieved with a history status, but is not the cause of the present condition.
7. Data link connector terminal 1 provides the connection to the GMLAN serial data low circuit and the GMLAN serial data low circuit respectively.
16. The communication malfunction may have prevented diagnosis of the customer complaint.
