EGRT1 Check EGRT Signal to PCM

- Key OFF.

- Connect Rotunda NGS Scan Tool 007-00500.

- Run the engine until normal operating temperature is reached.

- Select ENGINE.

- Select DATA MONITOR AND RECORD.

- Select EGRT.

- Read the EGRT sensor voltage.

- Is the voltage less than 4.5 volts?

YES -- If sent here from QT11, RETURN to Diagnostic Routines. Diagnostic Routines Index
Otherwise, REPLACE the PCM.

NO -- GO to EGRT2. EGRT2 Check EGRT Sensor Resistance