ETC (Electronic Throttle Control) System

Component Inspection

Throttle position sensor (TPS)
1. Connect a scantool on the Data Link Connector (DLC).
2. Start engine and check output voltages of TPS 1 and 2 at C.T and W.O.T.

Specification: Refer to Specification.


3. Turn ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect ETC module connector and measure resistance between ETC module terminals 1 and 2.

Specification: Refer to Specification.


ETC motor
1. Disconnect ETC module connector and measure resistance between ETC module terminals 3 and 6.

Specification: Refer to Specification.


ETC system initialization
When ignition switch is turned from OFF to ON, ETC system learns the throttle angle in 1 sec.
1. Throttle valve moves from limp-home position to close position.
2. And then, it opens to about 15° and moves to limp-home position.