The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output voltage is 7 V or higher when the ignition switch is turned off, the ECM illuminates the MIL and stores this DTC when the engine ignition switch is turned to ON
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P06579E | Actuator Supply Voltage "A" Stuck On | A throttle actuator power supply error (1 trip detection logic). | ECM | Comes on | DTC stored | SAE Code: P0657 |
| Required Sensors/Components | ECM |
| Frequency of Operation | Once per driving cycle |
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the GTS off.
Turn the ignition switch off.
Disconnect the GTS.
Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
Connect the cable to the negative (-) battery terminal.
Turn the ignition switch to ON [A].
Wait 10 seconds or more.
Turn the ignition switch off [B].
Wait 15 seconds or more.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Wait 5 seconds or more [C].
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P06579E.
Check the DTC judgment result.
| GTS Display | Description |
|---|---|
| NORMAL | ·
DTC judgment completed ·
System normal |
| ABNORMAL | ·
DTC judgment completed ·
System abnormal |
| INCOMPLETE | ·
DTC judgment not completed ·
Perform driving pattern after confirming DTC enabling conditions |
If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system is malfunctioning.
If the judgment result is INCOMPLETE, perform steps [B] through [D] again.
After the ignition switch is turned off, there may be a waiting time before disconnecting the auxiliary negative (-) battery terminal.
When disconnecting and reconnecting the battery.
When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.
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.
Clear the DTC.
Turn the ignition switch off.
| Proceed to |
|---|
| NEXT |
NEXT
Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
Connect the cable to the negative (-) battery terminal.
Turn the ignition switch to ON.
Wait 10 seconds or more.
Turn the ignition switch off.
Wait 15 seconds or more.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Wait 5 seconds or more.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC P06579E is output | B |
A
B