AIR SUSPENSION SYSTEM DATA LIST / ACTIVE TEST
-
READ DATA LIST
Tech Tips
Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
Note
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
-
Connect the intelligent tester to the DLC3.
-
Turn the power switch on (IG) and the intelligent tester on.
-
Enter the following menus: Chassis / Air suspension / Data List.
-
Read the Data List by following the directions on the intelligent tester screen.
Air Suspension System Tester Display Measurement Item/Range Normal Condition Diagnostic Note (Back & Forth)G Sensor G sensor reading /
min.: -4.5952 m/s2
max.: 4.5593 m/s2
0 +/-0.98 m/s2at still condition
Reading changes when vehicle is bounced Gravity Sensor (Side to Side) Yaw rate sensor reading /
min.: -1176.37 m/s2
max.: 1176.33 m/s2
0 +/-0.98 m/s2at still condition
Reading changes when vehicle is bounced FR Height Control Sensor Front height control sensor RH reading /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - FL Height Control Sensor Front height control sensor LH reading /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - RR Height Control Sensor Rear height control sensor RH reading /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - RL Height Control Sensor Rear height control sensor LH reading /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - Height Offset Max Display of amount of vehicle height calibration that is possible /
min.: 0 mm
max.: 6553.5 mm (258 in.)
Always: 80 mm (3.15 in.) - FR Height Adjust Display of vehicle height offset recorded value of front right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - FL Height Adjust Display of vehicle height offset recorded value of front left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - RR Height Adjust Display of vehicle height offset recorded value of rear right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - RL Height Adjust Display of vehicle height offset recorded value of rear left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
- - FR After Height Adjust Display of after-calibration vehicle height value of front right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
When vehicle height normal: 0 +/-20 mm (0 +/- 0.787 in.)
When vehicle height is changing: Varies based on vehicle height
After HEIGHT HIGH adjustment: 20 +/- 20 mm (0.787 +/- 0.787 in.)
- FL After Height Adjust Display of after-calibration vehicle height value of front left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
When vehicle height normal: 0 +/-20 mm (0 +/- 0.787 in.)
When vehicle height is changing: Varies based on vehicle height
After HEIGHT HIGH adjustment: 20 +/- 20 mm (0.787 +/- 0.787 in.)
- RR After Height Adjust Display of after-calibration vehicle height value of rear right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
When vehicle height normal: 0 +/-20 mm (0 +/- 0.787 in.)
When vehicle height is changing: Varies based on vehicle height
After HEIGHT HIGH adjustment: 20 +/- 20 mm (0.787 +/- 0.787 in.)
- RL After Height Adjust Display of after-calibration vehicle height value of rear left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)
When vehicle height normal: 0 +/-20 mm (0 +/- 0.787 in.)
When vehicle height is changing: Varies based on vehicle height
After HEIGHT HIGH adjustment: 20 +/- 20 mm (0.787 +/- 0.787 in.)
- Stop Light Switch Stop light switch /
ON or OFF
ON: Brake pedal depressed
OFF: Brake pedal released
- Door Switch Door switch /
ON or OFF
ON: Open a door
OFF: Close all doors
- Height Control Switch (Up) Height control switch (Driver seat) up side /
ON or OFF
ON: Switch is pressed and held
OFF: Switch is not pressed
- Height Control Switch (Down) Height control switch (Driver seat) down side /
ON or OFF
ON: Switch is pressed and held
OFF: Switch is not pressed
- Height Position Vehicle height position /
Normal or Not Normal
Normal: Vehicle height position is normal
Not Normal: Vehicle height position is not normal
- Height Control Vehicle height control condition reading /
ON or OFF
ON: Vehicle height control operating
OFF: Vehicle height control not operating
- Height Offset Vehicle height offset calibration condition reading /
ON or OFF
ON: Vehicle height offset calibration complete
OFF: Before vehicle height offset calibration
- HV Ready HV ready /
ON or OFF
ON: Ready on
OFF: Ready off
- TD Terminal TD terminal /
ON or OFF
ON: Height control is not operating
OFF: Height control is operating
- TC Terminal TC terminal /
ON or OFF
ON: DTC is output
OFF: DTC is not output
- TS Terminal TS terminal /
ON or OFF
ON: During test mode
OFF: Normal mode
- Luggage Room Mode Switch (Up) Height control switch (Luggage compartment) up side /
ON or OFF
ON: Switch is pressed and held
OFF: Switch is not pressed
- Luggage Room Mode Switch (Down) Height control switch (Luggage compartment) down side /
ON or OFF
ON: Switch is pressed and held
OFF: Switch is not pressed
- IG Power Source Voltage ECU power supply voltage /
min.: 0 V
max.: 255 V
Actual ECU power supply voltage: 11 to 14 V - +B Power Source Voltage ECU power supply voltage /
min.: 0 V
max.: 255 V
Actual ECU power supply voltage: 11 to 14 V - FR Wheel Speed Front right wheel speed reading /
min.: 0 km/h (0 mph)
max.: 255 km/h (159 mph)
Actual vehicle speed Speed indicated on the combination meter FL Wheel Speed Front left wheel speed reading /
min.: 0 km/h (0 mph)
max.: 255 km/h (159 mph)
Actual vehicle speed Speed indicated on the combination meter RR Wheel Speed Rear right wheel speed reading /
min.: 0 km/h (0 mph)
max.: 255 km/h (159 mph)
Actual vehicle speed Speed indicated on the combination meter RL Wheel Speed Rear left wheel speed reading /
min.: 0 km/h (0 mph)
max.: 255 km/h (159 mph)
Actual vehicle speed Speed indicated on the combination meter Height Mode Height mode /
NORMAL, ACCE LO, LO, STAN LO, FAST LO, L4 HI, HI or EX HI
NORMAL: Height control N mode
LO: Height control LO mode
HI: Height control HI mode
- Height Control Prohibition Height control prohibition/
Premiss or Prohibi
Premiss: Height control permission
Prohibi: Height control prohibiton
- Design Constant Information Vehicle Identification Information number /
min.: 0
max.: 255
- - Front Right Height Solenoid Height control solenoid valve front right operation /
ON or OFF
ON: Solenoid operate
OFF: Solenoid not operate
- Front Left Height Solenoid Height control solenoid valve front left operation /
ON or OFF
ON: Solenoid operate
OFF: Solenoid not operate
- Rear Right Height Solenoid Height control solenoid valve rear right operation /
ON or OFF
ON: Solenoid operate
OFF: Solenoid not operate
- Rear Left Height Solenoid Height control solenoid valve rear left operation /
ON or OFF
ON: Solenoid operate
OFF: Solenoid not operate
- Exhaust Solenoid Exhaust solenoid operation /
ON or OFF
ON: Solenoid operate
OFF: Solenoid not operate
- Motor Relay AIR SUS relay operation /
ON or OFF
ON: Compressor operate
OFF: Compressor not operate
- Low Pressure Tank Solenoid Low Pressure Tank solenoid operation /
ON or OFF
ON: Solenoid operate
OFF: Solenoid not operate
- Number of Trouble Codes Number of DTC recorded/
min.: 0
max.: 255
0 -
-
-
PERFORM ACTIVE TEST
Tech Tips
Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.
-
Connect the intelligent tester to the DLC3.
-
Turn the power switch on (IG) and the intelligent tester on.
-
Enter the following menus: Chassis / Air suspension / Active Test.
-
Perform the Active Test by following the prompts on the intelligent tester.
Air Suspension Tester Display Test Part Control Range Diagnostic Note FR Wheel Up/Down Right front vehicle height UP or DOWN - FL Wheel Up/Down Left front vehicle height UP or DOWN - RR Wheel Up/Down Right rear vehicle height UP or DOWN - RL Wheel Up/Down Left rear vehicle height UP or DOWN - Front Right Solenoid Height control valve front right ON or OFF Operation of solenoid (clicking sound) can be heard Front Left Solenoid Height control valve front left ON or OFF Operation of solenoid (clicking sound) can be heard Rear Right Solenoid Height control valve rear right ON or OFF Operation of solenoid (clicking sound) can be heard Rear Left Solenoid Height control valve rear left ON or OFF Operation of solenoid (clicking sound) can be heard Motor Relay AIR SUS relay ON or OFF Operation of solenoid (clicking sound) can be heard Exhaust Solenoid Exhaust solenoid ON or OFF Operation of solenoid (clicking sound) can be heard Low Pressure Tank Solenoid Low pressure tank solenoid ON or OFF Operation of solenoid (clicking sound) can be heard -
Enter the following menus: Body Electrical / Combination Meter / Active Test.
-
Perform the Active Test by following the prompts on the intelligent tester.
Combination Meter Tester Display Test Part Control Range Diagnostic Note Luggage Mode Indicator Luggage mode indicator ON or OFF - Air Suspension (Hi) Indicator Height control indicator light (HI) ON or OFF - Air Suspension (N) Indicator Height control indicator light (N) ON or OFF - Air Suspension (Lo) Indicator Height control indicator light (LO) ON or OFF -
-