DTC Code | DTC Name |
---|---|
P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
DESCRIPTION
Refer to DTC P2120.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
---|---|---|---|---|---|
P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | Either of the following conditions is met (1 trip detection logic):
|
|
Comes on | DTC stored |
DTC No. | Data List |
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P2121 |
|
CONFIRMATION DRIVING PATTERN
DTC No. | DTC Detection Drive Pattern |
---|---|
P2121 | Ignition switch ON for 5 seconds or more.
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CAUTION / NOTICE / HINT
Note
After replacing the ECM, the new ECM needs registration (Click here ) and initialization Click here.
Tech Tips
Read freeze frame data using the GTS. 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, and other data from the time the malfunction occurred.
PROCEDURE
READ VALUE USING GTS (ACCEL SENS.)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Accel Sens. No.1 Volt % and Accel Sens. No.2 Volt %.
Tester Display |
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Accel Sens. No.1 Volt % |
Accel Sens. No.2 Volt % |
*1 | Accelerator Pedal Assembly |
*a | Depressed |
*b | Released |
Read the values.
Standard | |||||||||
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Result | |||
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|
OK |
GO TO STEP 5 Click here |
NG |
REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY
Replace the accelerator pedal sensor assembly.
Result | ||
---|---|---|
|
NEXT |
CHECK WHETHER DTC OUTPUT RECURS (DTC P2121)
Connect the GTS to the DLC3.
Clear the DTCs.
Turn the ignition switch off and wait for at least 30 seconds.
Wait for 5 seconds after turning the ignition switch to ON.
Turn the GTS on.
Operate the accelerator pedal in accordance with the following procedure [B].
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Accel Sens. No.1 Volt %, and Accel Sens. No.2 Volt %.
Slowly depress the accelerator pedal until Accel Sens. No.1 Volt % is approximately 30% and Accel Sens. No.2 Volt % is approximately 46%, then slowly release the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Result | ||||||
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|
B |
END |
A |
REPLACE ECM
Replace the ECM.
Result | ||
---|---|---|
|
NEXT |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the GTS to the DLC3.
Clear the DTCs.
Turn the ignition switch off and wait for at least 30 seconds.
Wait for 5 seconds after turning the ignition switch to ON.
Turn the GTS on.
Operate the accelerator pedal in accordance with the following procedure [B].
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Accel Sens. No.1 Volt %, and Accel Sens. No.2 Volt %.
Slowly depress the accelerator pedal until Accel Sens. No.1 Volt % is approximately 30% and Accel Sens. No.2 Volt % is approximately 46%, then slowly release the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output again.
Result | ||
---|---|---|
|
NEXT |
END |