Harness Inspection

1. With regulator assembly at temperature of approximately 68°F (20°C), disconnect all hoses and electrical connectors.
2. Check to ensure diaphragm is partially open, then apply battery voltage to regulator electrical connector.
3. Regulator diaphragm should be fully closed after eight minutes. If not, connect ohmmeter across regulator electrical terminals. Reading should indicate resistance of 40 ohms.