DTC P0405-EGR Position Sensor Circuit Low: Notes
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.
- When Monitored:
With the ignition on. Battery voltage above 10.0 volts.
- Set Condition:
EGR Position Sensor Signal is less than 0.1 of a volt. One trip Fault.
| Possible Causes |
|---|
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| (F856) 5-VOLT SUPPLY CIRCUIT OPEN |
| (K34) EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| (K34) EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT |
| EGR POSITION SENSOR |
| PCM |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.