OBD Code PO125
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
this is out of fords workshop manual, I guess you never bother to get to the bottom of the list
Diagnostic Trouble Code (DTC) P0125 indicates the CHT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting engine. This DTC will light the MIL.
Possible causes:
Diagnostic Trouble Code (DTC) P0125 indicates the CHT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting engine. This DTC will light the MIL.
Possible causes:
- Insufficient warm up time.
- Leaky or stuck open thermostat.
- Low engine coolant level.
- Malfunctioning CHT sensor.
Dig deeper. Start by reading the entire diagnostic chain.
Posting Guru
Joined: Aug 2008
Posts: 1,211
Likes: 1
well I guess you didn't read the first step which just so happened to be my original question.
<TABLE border=1 rules=groups cellSpacing=0 cellPadding=3 width="96%"><TBODY><TR><TD colSpan=2> C1 CHECK THE ENGINE TEMPERATURE</TD></TR></TBODY><TBODY><TR vAlign=top><TD vAlign=top>
</TD><TD vAlign=top>
Start the engine and allow the engine to idle for 10 minutes.</TD></TR><TR vAlign=top><TD vAlign=top>
</TD><TD vAlign=top></TD></TR><TR vAlign=top><TD vAlign=top></TD><TD vAlign=top>
Feel the inlet and heater water hoses and the underside of the upper radiator hose.</TD></TR><TR vAlign=top><TD></TD><TD>
- Are the upper radiator hose and the heater water hoses cold?
Yes INSTALL a new water thermostat.No GO to Section 413-01for diagnosis and testing of the engine coolant temperature gauge</TD></TR></TBODY></TABLE>
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