DESCRIPTION This DTC outputs when CAN communication error is occurred.
PROCEDURE
(a) Clear the DTC (see page (b) Check for DTC (see page
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Toyota Tundra Service Manual > Can Communication System: ECM Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode Any of the following conditions are met: Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the Techstream. Communication system DTCs (DTCs that start with U) that correspond to "EC ...