2005 FEH -- wrench/service engine soon warning
 

I have been searching the internet for a while regarding this problem, and finally I stumbled upon your website. I have seen a couple of other posts regarding this issue, but thought I may be able to get some info regarding our exact problem. Here is our problem. We'll be driving along and the WRENCH will pop up and the SERVICE ENGINE SOON will be on the display. The engine will rev quite high and the truck will not be able to accalerate. (only travels at approx. 20KPH) If we pull over and shut the vehicle off and re-start immediately, everything will be back to normal.We've taken the vehicle to our dealer and they find nothing wrong, no codes either. Once I actually made it home in this condition and plugged in a code reader and got nothing either.Any information anyone has will be greatly appreciated.</p>

Re: 2005 FEH -- wrench/service soon warning
 

There is a service bulletin for a bad cooling door actuator for the traction battery. TSB 07-25-12

Also have heard of the throttle system going bad causing all kinds of problems and is somewhat intermittent. HTH

Your code reader may not be able to read Body Control Module codes

Re: 2005 FEH -- wrench/service engine soon warning
 

If you have a scanguage you should be able to see what LOS is being engaged when this happens. This should point you in the right direction. I haven't posted the codes for the LOS, but they are very easy to do.

Re: 2005 FEH -- wrench/service soon warning
 

LOS--- Limited Operational Strategy

Re: 2005 FEH -- wrench/service soon warning
 

Do you think that me being in Canada, that the service bulletins would be different from the ones in the U.S?

Re: 2005 FEH -- wrench/service soon warning
 

Here is how to program an xgauge to indicate when in "Limited Operating Strategy" mode:

TXD: 07E022497F
RXF: 04628549067F
RXD: 3010
MTH: 000100010000
NAM: LOS

Should read 0 when not in an LOS; will read the following when in an LOS:

0.1: related to Engine
0.2: related to Generator Motor
0.4: reated to Traction motor
0.8: related to Regenerative Braking
1.6: related to One-Way Clutch
3.2: related to engine no start
25.6: related to Traction Battery
51.2: related to 12V battery
204: related to Ignition Key Position
409: related to Transaxle
819: related to Independent Plausibility Checker
1638: related to E-Quizzer
3276: related to ETC System

Re: 2005 FEH -- wrench/service soon warning
 

DD where do you find this info, this is very cool and VERY useful. I will have to inquire with the next trainer how I get this out of my $5,000 scanner.

I dont know if Canada uses the same TSBs, but they should as it doesnt make sense to have a different system.

Re: 2005 FEH -- wrench/service soon warning
 

The only difference is they have "eh" at the end of the sentences. You know what I mean, eh? :shade:

Re: 2005 FEH -- wrench/service soon warning
 

How about the PID for battery air door position?
I know one exists because I've seen it on a mater list of PID... a list without the addresses unfortunately. :(

My battery is not cooling on very cool nights.

Re: 2005 FEH -- wrench/service soon warning
 

This PID is from the list in the 2005 Powertrain/Emissions Diagnosis manual. The LOS states are bitwise encoded. I assumed all LOS states would be 0 if not engaged, but it appears that the generator LOS is reversed polarity. Either that or I am constantly in a generator related LOS....