DTC 3-1

Diagnostic Trouble Code (DTC) 3-1: TCS Serial Data Line (SDL) Diagnosis
The TCS control unit communicates with Engine Control Module (ECM) for information (accelerator pedal angle information, throttle angle information, TCS inhibition information, atmospheric pressure information, and engine stop signal) in the Serial Data Line (SDL). When the ignition switch is turned ON (II), the TCS control unit starts the signal to the ECM. When engine is started and the ECM receives the signal from the TCS control unit, the ECM signals information to the TCS control unit.