LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System - 4.4L - DTC P0506 To P2544) >> DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 >> Component Test

Component Test

WARNING: This page is about a different variant/trim than selected.

Dynamic Test

  1. Install a 3A fused jumper wire between the 5-volt reference terminal of the applicable APP sensor and 5 volts. Install a jumper wire between the low reference terminal and a ground.
  2. Sweep the sensor through the entire range while monitoring the voltage between the signal terminal and the low reference terminal with a DMM. The voltage should vary between 0.40-4.98 volts with out an spikes or dropouts.
    • If the voltage is not within the specified range or is erratic, replace the accelerator pedal assembly.