TEST MODE PROCEDURE
Tech Tips
When entering test mode, the suspension control ECU sets all the test mode DTCs first.
After completing test mode for each check item, the test mode DTCs that are determined to be normal by the suspension control ECU will be cleared.
The test mode DTCs for other check items may not be cleared when only a certain signal is inspected.
When the test mode returns back to the normal mode, all the test mode DTCs will be cleared.
Turn the engine switch off.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Chassis / Air suspension / Utility / Signal Check.
Confirm that the system is in test mode by checking that the luggage mode indicator light in the combination meter blinks at 0.125 second intervals (0.125 seconds on and 0.125 seconds off).
Tech Tips
If the suspension control ECU does not store the vehicle identification information, the light blinks at 1 second intervals (1 second on and 1 second off). If the vehicle identification information is not stored, perform registration of the vehicle identification information Click here.
Read the test mode DTCs by following the prompts on the intelligent tester screen.
After completing test mode, disconnect the intelligent tester and turn the engine switch off.
TEST MODE DTC CHART
Tech Tips
When entering test mode, the suspension control ECU stores all the test mode DTCs. If the deletion conditions for a test mode DTC are met, it is cleared.
If a DTC is displayed during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to " See page " for the respective "DTC Code" in the chart.
DTC Code | Detection Item | Trouble Area | Deletion Condition | See page |
---|---|---|---|---|
C1792 | Height control switch (driver seat) circuit malfunction |
|
An up signal from the height control switch (driver seat) is detected for 1 second or more followed by a down signal from the height control seat (driver seat) for 1 second or more *. | |
C1794 | Height control OFF switch circuit malfunction |
|
A signal from the height control OFF switch is detected for 1 second or more*. | |
C1799 | Height control switch (luggage compartment) circuit malfunction |
|
An up signal from the height control switch (luggage compartment) is detected for 1 second or more followed by a down signal from the height control seat (luggage compartment) for 1 second or more *. |
*: If the signal is detected after the switch is pressed, the luggage mode indicator light will illuminate for 1 second.