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What does error code 21 indicate in the Opel Astra J?
Model: Vauxhall Astra
Astra J
- Years 2009-2016
Error code 21 on the instrument panel display of an Opel Astra J lights up when the left rear headlight bulb is burnt out or malfunctioning. The causes of the malfunction can be three: the bulb is blown, the connector is damaged, the fuse related to the rear headlight is burnt out. Therefore, check the status of the fuse, if it does not show any defects, check the connector. If the connector also does not show any malfunctions, replace the headlight bulb, by doing so the problem will certainly be resolved and the error code will reset automatically.
Posted on 27 September 2024 by ScegliAuto
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