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