14 Jul 2021
Category: Articles, Downloads
Tim is well-known in the automotive aftermarket for his wealth of experience and expertise in all things repair-related. From lending a helping hand to installers through technical support to leading regular seminars, Tim’s name has become synonymous with Know How. Now, he’s lending his professional insight to our latest Expert Edition as he explores Local Interconnect Network (LIN)-controlled alternators and what to do if a simple alternator replacement is complicated by an unexpected LIN error. To find out more about NAPA rotating electrics and best practices for fitment, contact the NAPA technical helpline at 03333 136597.
For all the advantages of smart alternators utilising LINs, they can cause complications when replacing them with non-OE parts. If the ID of your internal module does not match the original part, errors in communication and compatibility can occur. We can help you make sense of this common issue.
A non-OE alternator with a differing LIN address can cause the vehicle to experience loss of communication with the alternator if:
If a loss of communication occurs, the vehicle will generate an error message. New alternators should be tested to ensure communication with a vehicle.
When installing a new LIN-controlled alternator, there are two main solutions for preventing a LIN error:
Additionally, vehicles fitted with intelligent battery monitoring modules must not be jumpstarted directly through the battery. This may damage the module and lead to a loss of communication.
Some LIN signals incorporate multiple components on the same network. This means new installations throughout the vehicle can lead to LIN errors.
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