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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 781 (Engine Control System - DTCS P1225 To P2A03) >> P2100, P2103 Throttle Control Motor Relay >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2100 Throttle control motor relay circuit open ECM detects that the voltage of power source for throttle control motor is excessively low.
  • Harness or connectors (Throttle control motor relay circuit is open.)
  • Throttle control motor relay
P2103 Throttle control motor relay circuit short ECM detects that the throttle control motor relay is stuck ON.
  • Harness or connectors (Throttle control motor relay circuit is shorted.)
  • Throttle control motor relay
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