Circuit/System Verification

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

Ignition - On/Vehicle - In Service Mode
Verify DTC P0641, P0651, P0697, P06A3, P06D2 is not set.
- If any of the DTCs are set
  Refer to DTC P0641, P0651, P0697, or P06A3
- Go to next step: If none of the DTCs are set
If you were sent here from DTC P0068, P0101, P0106, P0121, P1101 - Refer to Circuit/System Testing.
Verify the scan tool parameter: Throttle Body Idle Air Flow Compensation = Less than 90%
- If 90% or greater
  Refer to Throttle Body Cleaning
- Go to next step: If less than 90%
Perform the scan tool control function: Throttle Sweep - Start
Verify the scan tool parameter: Throttle Position Sensors 1 and 2 = Agree
- If not the specified state
  Refer to DTC P0121-P0123, P0222, P0223, P2135, U0606, or U0607
- Go to next step: If the specified state
Verify the scan tool parameter: BARO Sensor = The value should be within the range listed in the table: Altitude Versus Barometric Pressure
- If not in the specified range
  Refer to DTC P2228-P2230 or P227C-P227E
- Go to next step: If in the specified range
Verify the following parameter is within 3 kPa (0.4 PSI) of the actual barometric pressure: MAP Sensor
- If not in the specified range
  Refer to DTC P0106, P0107, or P0108
- Go to next step: If in the specified range
Engine at Idle
Verify the scan tool parameter: MAP Sensor = 26 to 52 kPa (3.8 to 7.5 PSI) - The value should change with accelerator pedal input.
- If not in the specified range or does not change
  Refer to DTC P0106, P0107, or P0108
- Go to next step: If in the specified range and changes
Observe the scan tool parameter: MAF Sensor & Engine Speed
Increase the engine speed slowly to 3000 RPM and then back to idle.
Verify the scan tool parameter: MAF Sensor = The value should change smoothly and gradually as the engine speed is increased and decreased.
- If the value does not change smoothly and gradually
  Refer to DTC P0102, P0103, or U060F
- Go to next step: If the value changes smoothly and gradually
Verify the following parameter is within 3 kPa (.4 PSI) of the actual barometric pressure: Boost Pressure Sensor
- If not in the specified range
  Refer to Circuit/System Testing
- Go to next step: If in the specified range
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.
Verify the DTC does not set.
- If the DTC sets
  Refer to Circuit/System Testing
- Go to next step: If the DTC is not set
All OK.