Manual Description
Unladen condition means the fuel tank, engine coolant and lubricants are at the full specification. Most intermittent problems are caused by poor electrical connections or faulty wiring. The customer is a very good source of information on such problems, especially intermittent ones.
Check for pinched or damaged air hoses between the suspension air reservoir and each load leveling rear air suspension shock absorber. 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 F and no cargo). Load vehicle to standard laden condition (with driver, front passenger, 2 passengers in second row seats and no cargo).
Manual Cover
General