Manual Description
Check the air hose connections at the suspension air reservoir and at the shock absorbers for leaks. If the lamp does not turn off, conduct self-diagnosis of the suspension control unit. Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning component.
Load vehicle to standard laden condition (with driver, front passenger, 2 passengers in second row seats and no cargo). Check voltage between suspension air compressor connector C9 terminal 2 and ground. Check continuity between suspension air compressor connector C9 terminal 1 and ground.
Check continuity between suspension control unit connector B3 terminal 16 and ground. Check voltage between suspension control unit connector B3 terminal 15 and ground. For vehicles with the rear load leveling air suspension system, check the shock absorbers for any air leaks or damage, and replace as necessary.
Manual Cover
General