Rainier AWD L6-4.2L VIN S (2005)
Steps 9 - 13
The numbers below refer to the step numbers on the diagnostic table.
2. A partial malfunction in the high speed GMLAN serial data circuits uses a different procedure from a total malfunction of the high speed GMLAN
data circuits. The following modules are connected to the high speed GMLAN serial data circuits:
-
ECM, for 5.3L
-
Transmission control module (TCM)
5. Data link connector terminals 6 and 14 provide the connection to the GMLAN serial data high circuit and the GMLAN serial data low circuit
respectively.
12. The communication malfunction may have prevented diagnosis of the customer complaint.
