Keyless Entry System Inoperative

Diagnostic Chart (Part 1 Of 3):

Diagnostic Chart (Part 2 Of 3):

Diagnostic Chart (Part 3 Of 3):

16. This step verifies that the keyless entry serial data circuit is at 4-5V supplied by the BCM.
17. This step tests for a short to voltage which would rot be detected with a DMM in step 16.