C12B400
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Electronic Brake Booster Motor "A"
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Abnormality in motor actuator rotation is detected for 0.3 seconds or more.
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Electric brake booster (brake booster with master cylinder assembly)
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Comes on
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Brake Booster
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-
SAE Code: C12B4 (Case 3)
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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C12B41C
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Electronic Brake Booster Motor "A" Circuit Voltage Out of Range
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Poor internal condition of motor actuator is detected.
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Electric brake booster (brake booster with master cylinder assembly)
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Comes on
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Brake Booster
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-
SAE Code: C12B4 (Case 4)
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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C12B41E
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Electronic Brake Booster Motor "A" Circuit Resistance Out of Range
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Internal failure in motor actuator is detected for 0.12 seconds.
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Electric brake booster (brake booster with master cylinder assembly)
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Does not come on
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Brake Booster
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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C12B477
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Electronic Brake Booster Motor "A" Commanded Position Not Reachable
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Abnormality in motor actuator rotation is detected for 0.3 seconds or more.
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Electric brake booster (brake booster with master cylinder assembly)
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Comes on
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Brake Booster
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-
SAE Code: C12B4 (Case 2)
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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C12B496
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Electronic Brake Booster Motor "A" Component Internal Failure
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Detected that the motor actuator cannot be driven.
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Electric brake booster (brake booster with master cylinder assembly)
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Comes on
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Brake Booster
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-
SAE Code: C12B4 (Case 1)
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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C12B579
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Electronic Brake Booster Motor "A" Mechanical Linkage Failure
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Abnormality in motor actuator rotation is detected.
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Electric brake booster (brake booster with master cylinder assembly)
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Comes on
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Brake Booster
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-
SAE Code: C12B5 (Case 1 and 2)
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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