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 ignition switch is turned off. If the output voltage is higher than 7 V when the ignition switch is turned off, the ECM illuminates the MIL and stores the DTC when the ignition switch is turned to ON.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
P0657 |
A throttle actuator power supply error (1 trip detection logic) |
ECM |
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 |
- |
MIL Operation |
Immediate |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not stored |
None |
Both of the following conditions are met |
- |
Electronic throttle actuator power supply voltage |
7 V or higher |
Ignition switch |
ON to off |
TYPICAL MALFUNCTION THRESHOLDS
Both of the following conditions are met |
- |
Last trip condition |
Met |
Command to electronic throttle actuator power |
ON |
CONFIRMATION DRIVING PATTERN
HINT:
Techstream Display |
Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
N/A |
|
HINT:
HINT:
CAUTION / NOTICE / HINT
HINT:
Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. 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. |
READ OUTPUT DTC (DTC P0657) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTC (See page ).
(e) Turn the ignition switch off.
(f) Turn the Techstream off.
(g) Disconnect the Techstream.
(h) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
(i) Connect the cable to the negative (-) battery terminal.
(j) Turn the ignition switch to ON.
(k) Wait 10 seconds or more.
(l) Turn the ignition switch off.
(m) Wait 15 seconds or more.
(n) Connect the Techstream to the DLC3.
(o) Turn the ignition switch to ON.
(p) Turn the Techstream on.
(q) Wait 5 seconds or more.
(r) Enter the following menus: Powertrain / Engine / Trouble Codes.
(s) Read the DTCs.
Result
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC P0657 is output |
B |
A |
CHECK FOR INTERMITTENT PROBLEMS |
B |
REPLACE ECM |
If a warning message is displayed
The multi-information display shows warnings of system malfunctions or incorrectly
performed operations. When a message is shown, perform corrections as indicated
in the message.
1. Master warning light
The master warning light comes on or flashes when ...
Internal Control Module EEPROM Error (P062F)
DESCRIPTION
The TCM monitors its internal operation and it will set this DTC when it detects
an internal malfunction.
DTC No.
DTC Detection Condition
Trouble Area
P062F
TCM internal error (EEPROM ...
Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION
In this circuit, the meter CPU receives engine coolant temperature signals from
the ECM using the CAN communication system (CAN No. 1 Bus). The meter CPU displays
engine coolant temperature that is calculated based on the data received from th ...