Reference Value Parameter Identification (PID)/Measured Signal Chart
REFERENCE VALUE PARAMETER IDENTIFICATION (PID)/MEASURED SIGNAL CHARTThe following listing reflects PIDS and/or measured values which may reveal a possible concern within each system shown. Match the category number with the related PID/measured signal and go to the Typical Diagnostic Reference Value Charts. Typical Diagnostic Reference Values
Some signals can only be measured and require the use of a digital multimeter (DMM).