Operation CHARM: Car repair manuals for everyone.

Reference Value PID/Measured Signal Chart





Reference Value PID/Measured Signal Chart

The 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 proceed to the Typical Diagnostic Reference Value Charts.

PID/Measured Signal Chart














Some signals are measured only an will require the use of a digital multimeter.