RL V6-3.7L (2009)
YES - Replace the part that does not communicate with the HDS.
NO - Repair open in the wire between the DLC (K-line and DIAG-H line) and the appropriate connector.
25. Check for B-CAN system DTCs without the HDS. See: Information Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview
Is DTC B1168, B1169, and/or B1178 indicated?
YES - Go to step 39.
NO - Go to step 26.
26. Turn the ignition switch to LOCK (0).
27. Disconnect the HDS from the DLC.
28. Measure the voltage between DLC terminal No. 16 and body ground.
Is there battery voltage?
YES - Go to step 29.
NO - Repair open in the wire between DLC terminal No. 16 and the No. 7 BACK UP (10 A) fuse in the under-dash fuse/relay box.
29. Measure the voltage between DLC terminals No. 4 and No. 16.
Is there battery voltage?
YES - Go to step 30.
NO - Repair open in the wire between DLC terminal No. 4 and body ground (G501).