B29 Engineer Posted October 23, 2017 Share Posted October 23, 2017 ABS Code 21 Where do I start ????? Link to comment Share on other sites More sharing options...
Frogware Posted October 23, 2017 Share Posted October 23, 2017 http://www.reattaowner.com/roj/component/content/article/index.php?option=com_content&view=article&catid=50:diagnostics-booklet&id=55:abs-diagnostic-codes Link to comment Share on other sites More sharing options...
DAVES89 Posted October 23, 2017 Share Posted October 23, 2017 It will most likely be one of the front wheel speed sensor leads. You can start with a visual inspection. If it is frayed or cracked that will most likely be your problem. If the leads look good you can test them using an ohm meter at the connection in the engine compartment. A reading of 800-1400 ohms is desireable. Link to comment Share on other sites More sharing options...
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