Lexus LX - Page 73

d. Clear the test mode DTCs (using SST check wire).
i. Turn the engine switch off.
ii. Disconnect SST from the DLC3.
SST
09843-18040
iii. 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.
TEST MODE DTC
a. If a trouble code is output during the DTC check, check the circuit indicated by the DTC. For details of each code, proceed to the DTC chart.
DTC Code Detection Item Trouble Area Proceed to
C15C4/68
A steering signal indicating a tire angle of
36° or more (to the left or right) is input after
entering test mode*
Steering angle sensor
Harness or connector
Steering control ECU
Click here
C15C5/69
A steering signal indicating a motor rotation
angle of 36° or more (to the left or right) is
input after entering test mode*
Harness or connector
Steering actuator
Steering control ECU
Click here
HINT:
*: A tire angle of 36° and a motor rotation angle of 36° correspond to the steering wheel angle. The amount of change in tire angle and
motor rotation angle is from when the mode is changed to test mode.