NOTE: For the diagnostic procedure, refer to DTC U0077. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF 1. OUTLINE OF DIAGNOSIS Detect malfunction of LIN communication. Judge as NG when LIN communication failure has occurred with the battery sensor. 2. COMPONENT DESCRIPTION (Common Specifications) Communication protocol: LIN 2.0 Communication Speed: 19.20 kbps 3. EXECUTION CONDITION
4. GENERAL DRIVING CYCLE Always perform the diagnosis continuously. 5. DIAGNOSTIC METHOD If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 2 seconds Malfunction Indicator Light Illumination: Does not illuminate. |
Dtc u0101 lost communication with tcm
Dtc u0077 lin communication bus "ecm/pcm" offTowing with all wheels on the ground
WARNING
Never turn the ignition switch to
the "LOCK"/"OFF" position while
the vehicle is being towed because
the steering wheel and the
direction of the wheels will be
locked.
Remember that the brake booster
and power steering do not function
...