ECD SYSTEM, Diagnostic DTC:P1268
| DTC Code | DTC Name |
|---|---|
| P1268 | EGR Valve Permanent Positive Governor Deviation |
DESCRIPTION
Refer to DTC P0401.
| 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 |
CAUTION / NOTICE / HINT
Tech Tips
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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.
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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
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REPLACE EGR VALVE ASSEMBLY
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Replace the EGR valve assembly.
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Perform EGR learning value reset.
Result Proceed to NEXT
NEXT 
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CHECK WHETHER DTC OUTPUT RECURS
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Connect the GTS to the DLC3.
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Turn the ignition switch to ON and turn the GTS on.
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Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCs -
Turn the ignition switch off and wait for 60 seconds or more [A].
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Perform road test [B].
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Repeat [A] and [B] for the number of trips detected.
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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 Proceed to NEXT
NEXT 
END
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