DTC P0222 (19-21 9-Speed A/T)
DTC P0222 : Throttle Position (TP) Sensor B Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Fuel and Emissions Systems .
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P0222 Throttle Position (TP) Sensor B Circuit Low Voltage |
DTC (PGM-FI)
- Problem verification
- 1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS.
- 3. Turn the vehicle to the OFF (LOCK) mode.
- 4. Turn the vehicle to the ON mode.
- 5. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit TP Sensor B Less than 0.3 V Do the current condition(s) match the threshold?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot - Refer to: How to Troubleshoot the Fuel and Emissions Systems .
- Determine possible failure area (THL2 line, others)
- 1. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P0122 Throttle Position (TP) Sensor A Circuit Low Voltage P0222 Throttle Position (TP) Sensor B Circuit Low Voltage Are DTC P0122 and P0222 indicated at the same time?
YES
Go to step 4.
NO
Go to step 3.
- Shorted wire check (THL2 line)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connectors.
PCM connector E (80P) Throttle body 6P connector - 4. Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode PCM connector E (80P): disconnected Throttle body 6P connector: disconnected Test point 1 Throttle body 6P connector (female terminals) No. 4: Test point 2 Body ground Is there continuity?
YES
Repair a short in the THL2 wire between the PCM (E55) and the throttle body.
NO
The THL2 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM - Refer to: PCM Removal and Installation (9-Speed A/T) (2019 2020 2021) , then recheck. If DTC P0222 goes away and the PCM was substituted, replace the original PCM - Refer to: PCM Removal and Installation (9-Speed A/T) (2019 2020 2021) .
- Determine possible failure area (throttle body, others)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Throttle body 6P connector - 3. Turn the vehicle to the ON mode.
- 4. Measure the voltage between test points 1 and 2.
Test condition
Vehicle ON mode Throttle body 6P connector: disconnected Test point 1 Throttle body 6P connector (female terminals) No. 5: Test point 2 Body ground Is there about 5.0 V?
YES
NO
Go to step 5.
- Open wire check (VCC3 line)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connector.
PCM connector E (80P) - 4. Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode Throttle body 6P connector: disconnected PCM connector E (80P): disconnected Test point 1 Throttle body 6P connector (female terminals) No. 5: Test point 2 PCM connector E (80P) No. 68 - Refer to:
PCM Connector for Inputs and Outputs (9-Speed A/T) (2019 2020 2021) .Is there continuity?
YES
The VCC3 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM - Refer to: PCM Removal and Installation (9-Speed A/T) (2019 2020 2021) , then recheck. If DTC P0222 goes away and the PCM was substituted, replace the original PCM - Refer to: PCM Removal and Installation (9-Speed A/T) (2019 2020 2021) .
NO
Repair an open in the VCC3 wire between the PCM (E68) and the throttle body.