B420 Retained Accessory Power Circuit

Chart:

Schematic:

DESCRIPTION
If the relays could not be heard or felt switching each 3 seconds with BO03 selected, the Retained Accessory Power (RAP) relay circuits are suspect.

TEST DESCRIPTION
The number below refers to a circled number on the diagnostic chart:
1. This checks for normal RAP functions, there by checking for faults in the RAP circuits.

NOTE ON INTERMITTENTS
If an intermittent Code B420 is being set, manipulate the related wiring in output Function and watch for relays to cycle.