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the cluster is what's known as a gateway node or module, through which all modules on the CAN bus line communicate. problems with the cluster can cause loss of communication with other modules on CAN bus. what you want to do is measure resistance of the CAN bus line at the datalink connector. i believe pins 3 and 11 are CAN + and -. you should see about 60ohms resistance there due to the 2 120ohm resistors wired in paralell on the circuit. if you see 60ohms, try wiggling the instrument cluster connectors while reading resistance. if the resistance values become irratic, the cluster will need to be replaced and flashed
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Last edited by kaya; 12-01-2012 at 12:42 AM.