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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 133 (ENGINE CONTROLS SELF-DIAGNOSTICS - 4.3L)DIAGNOSTIC TESTSDTC P0506: IDLE CONTROL SYSTEM - LOW RPMCONDITIONS FOR RUNNING DTC
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Conditions For Running DTC

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Conditions For Running DTC
WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  • DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0125, P0128, P0171, P0172, P0174, P0175, P0200, P0300, P0442, P0443, P0446, P0449, P0455, P0496, P1111, P1112, P1114, P1115, P1121, P1122, P1380, and P1381 are not set.
  • The Engine Coolant Temperature (ECT) sensor is between 140-241°F (60-116°C).
  • The Barometric (BARO) pressure sensor is more than 65 kPa.
  • The engine run time is more than 60 seconds.
  • The Throttle Position (TP) sensor angle is less than 0.7 percent.
  • The Vehicle Speed Sensor (VSS) is less than 1 MPH.
  • The Ignition 1 Signal parameter is between 9-18 volts.
  • The Intake Air Temperature (IAT) sensor is more than 14°F (-10°C).
  • The above conditions are met for 2 seconds.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.