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C1201 Diagnostic Trouble Code Discussion for April 2014

Engine Control System Malfunction

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Trouble Ticket Help Requests for DTC C1201
Help Request Posted
2011 Toyota Tacoma Pre Runner 4.0L MIL Lamp on, inop tachometer VIN: 5TFKU4HN4B
C1201: Engine Control System Malfunction. Tested for open/shorts between ICM(C9 w19 ) and PCM (E13)with NPF. Disconnected all related modules to spd circuit and performed pinpoint test for input and output signal. Found input to vary but has a steady output of 5 volts. After reinstalling the instrum...
April 03, 2014