Circuit/System Verification
- Verify that DTC P0641 is not set.
- If the DTC is set
Refer to DTC P0641, P0651, P0697, or P06A3 (LUJ) .
- If the DTC is not set
- If the DTC is set
- If you were sent here from DTC P0068, P0101, P0106, P0121, or P1101 refer to Circuit/System Testing below.
- Ignition ON.
- Verify the scan tool Throttle Body Idle Airflow Compensation parameter is less than 90%.
- 90% or greater
Refer to Throttle Body Inspection and Cleaning .
- If less than 90%
- 90% or greater
- Verify the scan tool Throttle Position Sensors 1 and 2 Agree/Disagree parameter displays Agree while performing the Throttle Sweep Test with a scan tool.
- If Disagree
- If Agree
- Verify the scan tool BARO parameter is within the range specified in the Altitude Versus Barometric Pressure
table, for the current vehicle testing altitude.
- BARO is not in range
Refer to DTC P2227-P2230 (LUJ) .
- BARO is within range
- BARO is not in range
- Verify the scan tool MAP Sensor pressure and BARO parameters are within 3 kPa (0.4 psi).
- The parameters are not within 3 kPa (0.4 psi).
Refer to DTC P0106 , DTC P0106 (LUV) .
- The parameters are within 3 kPa (0.4 psi).
- The parameters are not within 3 kPa (0.4 psi).
- Engine idling.
- Verify the scan tool MAP Sensor pressure parameter is between 26-52 kPa (3.8-7.5 psi) and changes with accelerator pedal input.
- If not between 26-52 kPa (3.8-7.5 psi) or does not change
Refer to DTC P0106 , DTC P0106 (LUV) .
- If between 26-52 kPa (3.8-7.5 psi) and changes
- If not between 26-52 kPa (3.8-7.5 psi) or does not change
- Verify the scan tool MAF Sensor g/s parameter changes smoothly and gradually as the engine speed is increased and decreased while performing the actions listed below.
- Engine idling
- Perform the scan tool snapshot function.
- Increase the engine speed slowly to 3, 000 RPM and then back to idle.
- Exit from the scan tool snapshot and review the data.
- Observe the MAF Sensor parameter frame by frame with a scan tool.
- The MAF Sensor parameter does not change smoothly and gradually
Refer to DTC P0101 , DTC P0101 (LUV) .
- The MAF Sensor parameter changes smoothly and gradually
- Verify the scan tool Boost Pressure Sensor pressure and BARO parameters are within 3 kPa (0.4 psi).
- The parameters are not within 3 kPa (0.4 psi).
Refer to Circuit/System Testing below.
- The parameters are within 3 kPa (0.4 psi).
- The parameters are not within 3 kPa (0.4 psi).
- Verify the scan tool MAP Sensor parameter and the Boost Pressure Sensor parameter are within 20 kPa (2.9 psi) during a WOT acceleration at the time of the 1-2 shift.
- The parameters are not within 20 kPa (2.9 psi)
Refer to Circuit/System Testing below.
- The parameters are within 20 kPa (2.9 psi)
- The parameters are not within 20 kPa (2.9 psi)
- 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 a DTC does not set.
- If a DTC sets
Refer to Circuit/System Testing below.
- If a DTC does not set
- If a DTC sets
- All OK.