Delay Relay
The Air Suspension Delay Relay supplies power to Air Suspension ECU and Air Valve Block when energized. Fuse FB4 applies voltage to energize relay when ignition switch is in positions "1" and "2". The relay is grounded at ground E304 through suspension diagnostic connector. The suspension diagnostic connector jumper must be connected or relay's ground circuit will be interrupted and air suspension system will be inhibited. The Air Suspension Delay Relay is designed to remain energized for approximately 20 seconds after ignition is turned off. This feature allows system to operate access function after ignition is turned off.