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Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 292 (Engine Control System - DTCS P1225 Through P2A03) >> DTC P2100, P2103: Throttle Control Motor Relay >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P2100 ETC MOT PWR-B1 [Throttle control motor relay circuit open (bank 1)] 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 ETC MOT PWR (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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