ECD SYSTEM, Diagnostic DTC:P1268

DTC Code	DTC Name
P1268	EGR Valve Permanent Positive Governor Deviation

DESCRIPTION

Refer to DTC P0401.

Tip:

For more information on the EGR control, refer to System Description.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P1268	EGR Valve Permanent Positive Governor Deviation	The control deviation of the EGR exceeds the maximum or minimum limit value for 4 seconds. (3 trip detection logic)	EGR valve assembly	Does not come on	DTC stored

WIRING DIAGRAM

Refer to DTC P0405.

CAUTION / NOTICE / HINT

Note:

After replacing the EGR valve assembly, the ECM needs initialization.

Tip:

When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.
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

REPLACE EGR VALVE ASSEMBLY

Result


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Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.

Powertrain > Engine and ECT > Clear DTCs
Turn the ignition switch off and wait for 60 seconds or more [A].
Perform road test [B].
Repeat [A] and [B] for the number of trips detected.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Powertrain > Engine and ECT > Trouble Codes
Confirm that the DTC is not output again.

Result


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