2000 Ford Expedition reset fail safe mode

Tiny
DRSINTEL
  • MEMBER
  • 2000 FORD EXPEDITION
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
I have had no problems with this vehicle it went into fail safe mode without warning and displays 12 codes just after going into fail safe mode. How do you reset this mode and trouble shoot which codes might be valid
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Sunday, July 18th, 2010 AT 12:01 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
I need to know what the codes are. Do you have them.
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Sunday, July 18th, 2010 AT 10:05 PM
Tiny
DRSINTEL
  • MEMBER
Here is the codes it is displaying, prior to going into safe mode it did not display any service lights or codes

p0743
po755
p1747
po443
p1451
po135
po141
po155
po161
p1409
po750pd
and do you know how safe mode is reset is it reset with a fix or by the computer control mod any help would be appreciated
tks
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Monday, July 19th, 2010 AT 12:35 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
P0743
Torque Converter Clutch Circuit Electrical
P0745
Pressure Control Solenoid Malfunction

P1747
Pressure Control Solenoid "A" Short Circuit

P0443
Evaporative Emission Control System Purge Control Valve Circuit Malfunction

P1451
Evap Emission Control Sys Vent Control Valve Circuit

P0135
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P0141
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

P0155
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

P0161
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)

P0750
Shift Solenoid A Malfunction

Wow! I listed them just in case you didn't know what they all ment. According the the list, many things are bad. However, I must say that with many of them, they don't all happen at the same time. As far as the limp mode, I believe the problem lies in one of two places. Either the torque converter is causing the problem or more likely, you have a bad shift solenoid (last code). That is where I would recommend starting, shift solenoid A. Check it for wiring problems or if it is bad. It is located on the valve body in the transmission. As far as the reset, it won't reset until the problem is repaired. If the shft solenoid isn't working, it can't shift into first gear.

Check it out and let me know if this helped.

Joe
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Tuesday, July 20th, 2010 AT 12:50 AM
Tiny
DRSINTEL
  • MEMBER
Ok thankyou for your help and you are right on it does not go into first gear it stays in second. Napa is the only place I can find the shift selanoid other than the dealer and it is 400.00 there as apposed to napa, 50.00 the problem now is the dealer using my vin say I have a 4r100 transmission and they wqant me to remove the selanoid and bring it to them of course I have to crack the pan. So I am going to try that tomarrow and service the transmission. Thanks again for your help.
Drs
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Friday, July 23rd, 2010 AT 10:24 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Let me know if it takes care of the problem.
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Saturday, July 24th, 2010 AT 1:19 AM

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