Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
NOTE:
A low battery voltage or charging system condition may cause a DTC to set.
- Ignition ON, observe the DTC information with a scan tool. Verify DTCs P0121, P0122, P0123, P0222, P0223 or P2135 should not set.
- If any of the DTCs are set, refer to DTC P0121-P0123, P0222, P0223, or P2135 (LUW) for further diagnosis.
- Clear the DTCs with a scan tool. Ignition OFF and all vehicle systems OFF. It may take up to 2 min for all vehicle systems to power down.
- Ignition ON, observe the scan tool TAC Motor parameter. The reading should display Enabled.
- Observe the DTC information with a scan tool. DTC P1516, P2101, P2119, or P2176 should not set.
- Perform the Throttle Sweep Test while observing the TAC Motor parameter with a scan tool. The TAC Motor parameter should display Enabled while the Throttle Sweep Test is in progress.
- If not the specified value, replace the throttle body assembly.
NOTE:Before replacing the throttle body assembly, make sure the throttle control circuits are not shorted to B+.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
NOTE:
If there is a condition with the throttle body, the TAC Motor Command parameter will go to 99% for a predetermined amount of time and then a DTC sets. Once a DTC is set, the TAC Motor Command parameter will go to 0% and the TAC Motor parameter will display Disabled.