Trailer Lighting Relay: Testing and Inspection
ON-VEHICLE INSPECTION1. INSPECT TOWING CONVERTER RELAY
a. Measure the voltage between terminals as shown in the chart given.
2. INSPECT TOWING CONVERTER RELAY (BATT CHG RELAY)
a. Inspect relay continuity.
3. INSPECT TOWING CONVERTER RELAY (TOWING TAIL RELAY)
a. Inspect relay continuity.