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Alfa Romeo DTC

Alfa Romeo DTC B1021-29

Manufacture

Alfa Romeo DTC

Code

B1021-29

Definition

Signal Of Rear Axle Sensor Invalid (Electrical Error) - Signal Signal Invalid

Description

When the Adaptive Front Lighting System (AFLS) Module detects less than 0.2 volts or greater than 4.7 volts on the Headlamp Leveling Sensor Rear Signal circuit for greater than one second. Failure Type: Signal InvalidThis sub type is used for failures where the value of the signal is not plausible given the operating conditions.

Cause

  • none

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