Electrical Control Unit (Ecu)

The ECU is located underneath right front seat, on top of fuel ECU. It maintains requested vehicle ride height by adjusting volume of air in each air spring. It is connected to cable assembly by a 35-way connector. To ensure safe operation, the ECU has extensive on-board diagnostic and safety features. The ECU is non-serviceable. In case of failure, it must be replaced.

Power supply for system consists of the following components: See Figure .

• Delayed power turn off relay. This remains powered up for 20 seconds after exiting vehicle to allow self levelling.
• Compressor relay (4 pin).
• Warning light relay (5 pin).
• 30-amp "maxifuse" for compressor power.
• 15-amp fuse for ECU pin 1.