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2021
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WRX Base
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Repair and Diagnosis
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Engine Performance
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Engine Control System (Diagnostics) (2.0L) (3 Of 4)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P100A: AVCS System Stuck
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Execution Condition
Execution Condition
Secondary parameters
Execution condition
Battery voltage
AVCS control
Target timing advance change amount (per 80 ms)
VVT target angle
Ambient air temperature
= 10.9 V
In operation
< 4°CA
> 12.5°CA
< 7°C (45°F)