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Discussion Starter · #1 ·
While installing a Rainbow Module it appears that all communication has been lost and no units are speaking to each other. Car does not start, no lights or dashboard come on, just slightly turn acc on, but no response from car.
I attached my last scan and looks like everything is on lock mode. Can someone shed some light on this?
 

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Energy management is active. The car voltage is 11.14v which is far too low. Systems start to behave erratically when energy management is active as some modules are shut down to save power. Charge or replace the battery. I have no idea what a rainbow module is. During fitting if you disturbed any CAN bus wiring check it is connected correctly.
 

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Discussion Starter · #3 ·
Thanks John. I did find a crossed wire in pin 48 & 49 both orange and brown wire. Switched those two wire and it's all back to normal. LOL a rainbow module is an aftermarket HP and Torque meter standard on rs5 but not s5. Needless to say after this experience- i can live without HP and torque readings.
 
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