Subaru Crosstrek Service Manual: Dtc u0073 control module communication bus off
CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF
NOTE:
Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedure. Basic Diagnostic Procedure">
1. OUTLINE OF DIAGNOSIS
• Detect malfunction of CAN communication.
• Judge as NG when CAN communication failure has occurred.
2. EXECUTION CONDITION
Secondary Parameters | Execution condition |
12 V battery system voltage | ≥ 10 V |
Measured turbine shaft speed | > 0 rpm |
or | |
Transmission range | Drive or Reverse |
3. DIAGNOSTIC METHOD
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Malfunction Criteria | Threshold Value |
CAN bus condition | Bus off |
Time Needed for Diagnosis: 2 seconds
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
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Other materials:
Handling of radar sensors
Radar sensors
The radar sensors, one on each side of
the vehicle, are mounted inside the rear
bumper.
CAUTION
To ensure correct operation of the
BSD/RCTA, observe the following
precautions.
Always keep the bumper surface
near the radar sensors clean
Do not affix any stickers o ...
Air conditioner control
The air conditioner operates only when
the engine is running.
Press the air conditioner button while the
fan is in operation to turn on the air
conditioner. When the air conditioner is
on, the "A/C" indicator light illuminates.
To turn off the air conditioner, press the
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NOT ...
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