4WD Control System Inspection
- Install special tool to air hose connecting between air pump assembly and differential (actuator) as shown in the figure. Tighten adjusting screw (2) of special tool as far as it stops. Close air check side opening by using fuel hose (1) as blind plug.NOTE: Use care not to bend any part of hose.
Special tool
(A): 09918-18110
(B): (SUZUKI genuine part)
- Turn ON ignition switch and shift transfer lever from "2H" to "4H" range.
- Check that motor starts running (a sound can be heard) within 1 second and it stops when gauge of special tool indicates specified pressure value. Check also for air leakage.
Air pressure specification (for 4WD control system inspection): 30.0 - 45.0 kPa (0.30 - 0.45 kg/cm2 , 4.25 - 6.40 psi)
- Check that pressure value indicated on gauge of special tool drops as soon as transfer lever is shifted to "2H" position.
- Start motor by shifting transfer lever to "4H" position again. Loosen adjusting screw (2) to lower pressure value on gauge. Motor should start to run again and stop in about 4 seconds.
- With the adjusting screw (2) of special tool loosened, shift transfer shift lever to "N" or "2H" position and then "4L" or "4H" position. Pump motor should stop about 10 seconds after motor starts to run.