Test Mode Procedure

STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: TEST MODE PROCEDURE

1. TEST MODE (VGRS SENSOR SIGNAL CHECK)

HINT
* When the system enters test mode, "VGRS TEST MODE" is displayed on the multi-information display.





* Before entering test mode, check and repair any malfunctions indicated by the present DTCs of the VGRS system.
* By switching from normal mode to test mode, the steering angle sensor can be read.
* When entering test mode, the steering control ECU sets all the test mode DTCs first.
* When the mode is switched from test mode to normal mode, all the test mode DTCs will be erased.

(a) Check the test mode DTCs (using the tester).

(1) Turn the engine switch off.

(2) Connect Techstream to the DLC3.

(3) Turn the engine switch on (IG) and turn the tester on.

(4) Read the test mode DTCs by following the prompts on the tester screen.

HINT
Refer to the tester operator's manual for further details.

(b) Clear the test mode DTCs (using the tester).

(1) Turn the engine switch off.

(2) Connect Techstream to the DLC3.

(3) Turn the engine switch on (IG) and turn the tester on.

(4) Switch the system from test mode to normal mode by following the directions on the tester screen.

HINT
Refer to the tester operator's manual for further details.

(c) Check the test mode DTCs (using SST check wire).

NOTICE:
Perform these procedures with the vehicle stopped.

(1) Turn the engine switch off.

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

SST : 09843-18040





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

(4) Read 2-digit test mode DTCs from the multi-information display.

(d) Clear the test mode DTCs (using SST check wire).

(1) Turn the engine switch off.

(2) Disconnect SST from the DLC3.

SST : 09843-18040

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

HINT
If the engine switch is turned on (IG) with terminals 12 (TS) and 4 (CG) connected, the system remains in test mode.

2. TEST MODE DTC

(a) If a trouble code is displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, proceed to the DTC chart.





HINT
*: A tire angle of 36° and a motor rotation angle of 36° correspond to the steering wheel angle respectively. The amount of change in tire angle and motor rotation angle is from when the mode is changed to test mode.