These DTCs relate to the accelerator pedal position sensor.
Refer to DTC P212012.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P21382B | Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation Signal Cross Coupled | Diagnosis Condition:
·
Ignition switch ON Abnormal condition: ·
Difference between VPA and VPA2 is 0.02 V or less. Malfunction Time: ·
2 seconds or more Trip logic: ·
1 trip detection logic Detection Conditions: ·
Continuous Sensors/components used for detection: ·
Accelerator pedal sensor assembly |
·
Accelerator pedal sensor assembly ·
Short between VPA and VPA2 circuits ·
ECM |
Comes on | DTC stored | SAE Code: P2138 |
When the ignition switch is turned to ON and the difference in the output voltage of VPA and VPA2 is 0.02 V or less for 2 seconds or more, the ECM determines that the accelerator pedal sensor assembly circuit is malfunctioning and illuminates the MIL and stores a DTC.
| Required Sensors/Components | Accelerator pedal sensor assembly |
| Frequency of Operation | Continuous |
When these DTCs are stored, the ECM enters fail-safe mode. If either of the 2 sensor circuits malfunctions, the ECM limits the engine output. If both of the circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.
Fail-safe mode continues until a pass condition is detected, and the ignition switch is turned off.
Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Accelerator Position Sensor No.1 Voltage and Accelerator Position Sensor No.2 Voltage.
| Tester Display |
|---|
| Accelerator Position Sensor No.1 Voltage |
| Accelerator Position Sensor No.2 Voltage |
Read the values displayed on the GTS.
| Result | Proceed to |
|---|---|
| The value of Accelerator Position Sensor No. 1 and Accelerator Position Sensor No. 2 is approximately 0 V | A |
| Other than above | B |
A
B
Confirm the connection status of the accelerator pedal sensor assembly connector.
The connector is securely connected.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Connect the accelerator pedal sensor assembly connector.
| Proceed to |
|---|
| NEXT |
NEXT
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Accelerator Position Sensor No.1 Voltage and Accelerator Position Sensor No.2 Voltage.
| Tester Display |
|---|
| Accelerator Position Sensor No.1 Voltage |
| Accelerator Position Sensor No.2 Voltage |
Read the values displayed on the GTS.
Difference between the value of Accelerator Position Sensor No. 1 and Accelerator Position Sensor No. 2 is 0.02 V or more
| Proceed to |
|---|
| NEXT |
NEXT
Disconnect the accelerator pedal sensor assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A54-6 (VPA) - A54-3 (VPA2) | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the accelerator pedal sensor assembly connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A54-6 (VPA) - A54-3 (VPA2) or A46-47 (VPA) - A46-50 (VPA2) | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG