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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P2120, DTC P2122, DTC P2123, DTC P2125, DTC P2127, DTC P2128 Or DTC P2138 >> Diagnosis & Repair

Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check accelerator pedal position sensor. See SENSOR OPERATING RANGE CHARTS article. Replace accelerator pedal position sensor as necessary. If okay, go to next step.
  2. Check harness and connector between ECM and accelerator pedal rod. Repair or replace harness and connector as necessary. If okay, replace ECM.
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