LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P0506 or P0507 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition On
  2. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. Verify the scan tool parameter: Throttle Body Idle Air Flow Compensation Less than 90%
    • Go to next step: If less than 90% 
  4. Engine - Idling - At normal operating temperature
  5. Verify the scan tool parameter: Engine Speed = -100 to +200 RPM of the Desired Idle Speed
    • Go to next step: If a condition exists Engine Speed Less than desired-100 to +200 RPM of the Desired Idle Speed 

      Go to next step: Refer to: Circuit/System Testing

    • Go to next step: If a condition exists Engine Speed Greater than desired-100 to +200 RPM of the Desired Idle Speed 

      Go to next step: Refer to: Circuit/System Testing

    • Go to next step: If a condition exists Engine Speed 200 RPM Less than desired 
  6. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  7. Verify the DTC does not set.
    • Go to next step: If the DTC sets 

      Go to next step: Refer to: Circuit/System Testing

    • Go to next step: If the DTC does not set 
  8. All OK.