Test Mode Procedure

SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: TEST MODE PROCEDURE

1. SIGNAL CHECK (WHEN USING TECHSTREAM)

HINT
* When entering test mode, the suspension control ECU first stores all the test mode DTCs. After completing test mode for each check item, the test mode DTCs that are determined to be normal by the suspension control ECU are cleared. The test mode DTCs for other check items may not be cleared when only a certain signal is inspected.
* When the system returns to normal mode, all the test mode DTCs are cleared.

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Start the engine.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Air suspension / Utility / Signal Check.

(f) Check the display of the multi-information display and confirm that the system is in test mode.

(g) Check each item in the table below by performing the corresponding operation.

Test Mode (Input Signal Check) Table





(h) Read the test mode DTCs by following the prompts on the Techstream screen.

(i) Check the malfunction using the Test Mode DTC Chart below. After completing test mode, disconnect the Techstream and turn the engine switch off.

2. SIGNAL CHECK (WHEN USING SST CHECK WIRE)

HINT
* When entering test mode, the suspension control ECU first stores all the test mode DTCs. After completing test mode for each check item, the test mode DTCs that are determined to be normal by the suspension control ECU are cleared. The test mode DTCs for other check items may not be cleared when only a certain signal is inspected.
* When the system returns to normal mode, all the test mode DTCs are cleared.

(a) Turn the engine switch off.

(b) Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

SST : 09843-18040





Text in Illustration





NOTICE:
Do not connect the incorrect terminals as this will cause damage.

(c) Turn the engine switch on (IG).

(d) Check the display of the multi-information display and confirm that the system is in test mode.

(e) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

SST : 09843-18040





Text in Illustration





NOTICE:
* Do not disconnect terminals 12 (TS) and 4 (CG).
* Do not connect the incorrect terminals as this will cause damage.

(f) Check each item in the table below by performing the corresponding operation.

Test Mode (Input Signal Check) Table





(g) Read the output test mode DTCs that are displayed on the multi-information display.

(h) Check the malfunction using the Test Mode DTC Chart below.

After completing test mode, disconnect SST and the engine switch off.

3. TEST MODE DTC CHART

HINT
When entering test mode, the suspension control ECU stores all the test mode DTCs. If the clear conditions for a test mode DTC are met, it is cleared.

(a) If a trouble code is output during the test mode DTC check, check the trouble areas listed for that code. For details of each code, refer to "See page" for the respective "DTC Code" in the chart.