Cummins Onan · HGLAA and compatible controllers; verify model applicability

Code 19Throttle actuator circuit fault

The controller detected an electrical short in the throttle actuator circuit.

Published by RV Fault Finder · Independent referencePrimary source checked August 2026How this guide is researched →

What it means

Plain-English answer

This fault concerns the circuit controlling engine throttle. The operator manual directs the owner to a dealer or distributor.

Owner-safe checks

What to check first

01
Leave the set off and disconnect RV loads.
02
Record the model, specification, and code history.
03
Look only for obvious external harness damage without opening the enclosure.

Safety boundary

Stop and call a technician when

Do not bypass the actuator or apply power to its wiring.
Arrange qualified generator service.

Primary reference

Check the exact manual

Applicability: HGLAA and compatible controllers; verify model applicability. The data plate and specification letter determine which procedure is correct.

Open Cummins Onan HGLAA operator manual ↗Source reviewed August 2026