DTC P100D: General Description
The EVTM line of the powertrain control module (PCM) is installed to receive diagnostic signal from the electric VTC motor. When the electric VTC relay circuit is off under normal conditions, the EVTM line output from the electric VTC motor is 100 % (+/-5 %) duty. When in the vehicle OFF (LOCK) mode, the PCM detects a malfunction and stores a DTC when the EVTM line output is anything other than 100 % (+/-5 %) duty continuously for the prescribed time though the electric VTC relay circuit is turned off.