How To Proceed With Troubleshooting

HINT:

• The following troubleshooting procedure relates to non-electrical system problem symptoms only.
• For malfunctions in electrical systems such as accumulator pressure sensor, stabilizer control ECU and wire harness, refer to HOW TO PROCEED WITH TROUBLESHOOTING

1. Vehicle conditions: 
   VEHICLE CONDITIONS
   
   

   The right and left sides of the vehicle are not level.	Refer to step  3.
   The vehicle rolls excessively during driving.	Refer to step  4.

2. Suspension fluid 

   HINT:

   Check the suspension fluid pressure using the hand-held tester.

   Standard: 

   • 2.60 to 3.00 MPa at 20°C (68°F) (Fluid temperature) 
   • 2.90 to 3.40 MPa at 35°C (95°F) (Fluid temperature) 
   SUSPENSION FLUID PRESSURE
   
   

   Suspension fluid pressure is abnormally low.	Refer to step  5.
   Suspension fluid pressure is abnormally high.	Refer to step  6.

3. The right and left sides of the vehicle are not level. 
   Fig 1: Suspension Fluid Pressure Inspection Flow Chart (Right & Left Sides Of Vehicle Are Not Level)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. The vehicle rolls excessively during driving. 
   Fig 2: Suspension Fluid Pressure Inspection Flow Chart (Vehicle Rolls Excessively During Driving)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Suspension fluid pressure is abnormally low. 
   Fig 3: Suspension Fluid Pressure Inspection Flow Chart (Suspension Fluid Pressure Is Abnormally Low)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1: This check is to confirm that the suspension fluid pressure is not low because N² gas in the fluid. When the bellows in the stabilizer control w/ accumulator housing assy is malfunctioning, N² gas enters the suspension fluid, causing the fluid pressure to decrease.

6. Suspension fluid pressure is abnormally high. 
   Fig 4: Suspension Fluid Pressure Inspection Flow Chart (Suspension Fluid Pressure Is Abnormally High)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002