MONITOR DESCRIPTION
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 power switch is turned off. If the output voltage is 7 V or higher when the power switch is turned off, the ECM will illuminate the MIL and store this DTC when the power switch is turned to on (IG).
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
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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 |
MONITOR STRATEGY
Related DTCs | P0657: Electronic throttle actuator supply voltage circuit performance |
Required Sensors/Components (Main) | ECM |
Required Sensors/Components (Related) | Throttle actuator |
Frequency of Operation | Once per driving cycle |
Duration | 1 second |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored | None |
Both of the following conditions are met | - |
Auxiliary battery voltage | 8 V or higher |
Command to electronic throttle actuator power | Off |
TYPICAL MALFUNCTION THRESHOLDS
Electronic throttle actuator power supply voltage | 7 V or higher |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
Techstream Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION / NOTICE / HINT
NOTICE:
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(Select Powertrain in Health Check and then check the time stamp data.)
Click here
Click here
HINT:
Read Freeze Frame Data using the Techstream. 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.
PROCEDURE
1. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs(e) Turn the power switch off.
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2. | READ OUTPUT DTC (DTC P06579E) |
(a) Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.
(b) Connect the cable to the negative (-) auxiliary battery terminal.
(c) Turn the power switch on (IG).
(d) Wait 10 seconds or more.
(e) Turn the power switch off.
(f) Wait 15 seconds or more.
(g) Connect the Techstream to the DLC3.
(h) Turn the power switch on (IG).
(i) Turn the Techstream on.
(j) Wait 5 seconds or more.
(k) Enter the following menus: Powertrain / Engine / Trouble Codes.
(l) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
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DTCs are not output | A |
DTC P06579E is output | B |
A | CHECK FOR INTERMITTENT PROBLEMS |
B | REPLACE ECM |