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Scan Tool Testing and Procedures

Diagnostic Parameters Identification (PID) Chart

Using Output State Control (OSC) and Accessing PIDs

To confirm that the output state control (OSC) value was sent by the scan tool and the PCM has accepted the OSC substitution, a corresponding PID or PIDs for each OSC parameter should be monitored. Additional PIDs should be monitored to help the technician adequately diagnose the transaxle.

The following is a list of OSC parameters and their corresponding PIDs:





To confirm that the OSC substitution occurred, command the OSC value and monitor the corresponding PID value. If the value of the corresponding PID is the same as the value sent from OSC, then the OSC substitution was successful.

The following general PID list may be of use to the technician when exercising OSC: