UK Car Repair Questions? Ask a Mechanic for Answers ASAP
This model does not use individual fuses for the tail light circuit like previous models did... if there is a failure on one side of the lighting it is going to be either wiring or ETACS related.Is there anything noteworthy that happened prior to this condition forming? Any recent repairs, modifications, accessories etc... even if seemingly unrelated to the problem area?
Thanks.The EtACS is the in dash fuse panel, which incorporates the computer operation for the lighting as well as all bus behavior.
The chain of events is definitely not good, as it is very likely that the ETACS may have been damaged.
Please remove the cars trailer harness (unplug it anyway), then disconnect the negative battery terminal for a minute or two and reconnect it, then check the operation again.
Let me know what you find, and if it is the same behavior, please let me know your current mileage.
I will be leaving for the night shortly, but if you need more help with this just let me know and I will get back with you as soon as I am in.