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WRX Base
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Repair and Diagnosis
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Different variant/trim
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Section 2 (Continuously Variable Transmission (Diagnostics))
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC U0073: Control Module Communication Bus Off
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Execution Condition
Execution Condition
WARNING:
This page is about a different variant/trim than selected.
Secondary parameters
Execution condition
12 V battery system voltage
≥ 10 V
Measured primary pulley shaft speed
> 0 rpm
or
Transmission range
Drive or Reverse