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I got a 2003 XC90 with T6. I have already replaced the steering wheel module and the turn signal stalk. I will list my symptoms below. 1. Both left and right turn signals don't work. Emergency blinker lights do work. 2. Wipers only work on slow. High speed don't work. The squirter doesn't work either. 3. None of the stereo controls on steering wheel work. 4. Occasionally turn signal will come on if i drive around. SO will high beams by driving and playing with the stalk. These were the symptoms before i replaced stalk and steering wheel module and remain the same exact symptoms after replacing. What are other possibilities? Fuse box? Corroded pin somewhere in connection or ecm? Does anyone have a procedure and schematic on testing these connections?
2. Below is a list of common CEM symptoms courtesy of xemodex. Have you scanned all the control units with a compatible scanner? What codes do you have in the CEM?
Turn signal, high beams, wipers don't work
