Code P047 stored as history can indicate 2 failures:
Open in circuit No. 800. Symptoms will be:
- SYSTEM FAULT message on DIC panel.
- MIL and CHECK INFO CENTER lights on.
- Diagnostics entered; NO PCM DATA displayed on DIC panel.
- When fault is repaired, Codes P047 and IO34 will show as history codes.
Grounded circuit No. 800 at any point. Symptoms will be:
- SYSTEM FAULT message on DIC panel.
- SERVICE VEHICLE SOON light on.
- Instrument panel gauges flash.
- Climate control panel goes blank.
- Engine cooling fans go on high speed.
- Diagnostics disabled; SYSTEM FAULT message stays on DIC panel.
- When fault is repaired, diagnostics show Codes P047, IO33, IO34 and IO37 as history codes.