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P0600 Diagnostic Trouble Code Discussion for March 2014

Serial Communication Link

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Trouble Ticket Help Requests for DTC P0600
Help Request Posted
1998 Nissan Quest GXE 3.0L MIL Lamp on VIN: 4N2ZN1110W
P0600: TCM Communication Line Circuit Malfunction. Vehicle failed emissions with a p0600. Ran the flow chart and got to the voltage test. The test has you check for voltage at pin 24 and 29 for 6-8 volts. I have no voltage on pin 24. Replaced PCM (used) 2 times and same result. I even tried a TCM from one of t...
March 25, 2014