How do you reset a false MIL code?

This code refers to the fuel rail pressure sensor circuit being high. The two most common problems of this code are a faulty sensor and/or faulty pressure regulator. A wiring/computer issue can also contribute to this code. I have had success with numerous vehicles displaying this code by changing the fuel pressure sensor and correcting the problems you have stated

here is some info. I hope it helps.

This is a code relative to shift solenoid malfunctions in your computer. This is a known problem on your model and Toyota released an updated PCM to correct the problem.
While you can replace the PCM yourself if you are out of warranty, your dealer will need to code your VIN to it in order to get rid of the check engine light.
The warranty coverage is 8 years or 80,000 miles from new.

The details of the bulletin are below:

TRANSMISSION & CLUTCH
TC015-07 Title:
HARSH SHIFT AND M.I.L. "ON"
DTC P2716 Models:
'05 - '07 Corolla & Matrix (1ZZ-FE) September 20, 2007
TSB UPDATE NOTICE:The information contained in this TSB supercedes TSB No. TC014-06.
TSB No. TCO14-06 is now obsolete and should be discarded. Introduction
Some 2005 - 2007 model year Corolla and Matrix vehicles equipped with an automatic transaxle may exhibit a harsh shift condition and a M.l.L. ON" with DTC P2716 stored. Improvements have been made to the Engine Control Module (ECM) (SAE term:
Powertrain Control Module/PCM) to reduce the possibility of this condition occurring

FORD: A TSB for a PCM update.

The article supersedes TSB 12-3-17 to update the Title, Issue Statement and Service Procedure.

ISSUE:

Some 2009-2010 F-150 vehicles equipped with a 4.6L or 5.4L engine may exhibit an illuminated MIL with DTC P0130 (Oxygen Sensor Circuit Bank 1, Sensor 1) or P0150 (Oxygen Sensor Circuit Bank 2, Sensor 1).

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

1. Retrieve all DTC's in the powertrain control module (PCM). Are diagnostic trouble codes P0130 or P0150 present?
   1. Yes - proceed to Step 2.
   2. No - this procedure does not apply. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) diagnostics.
2. Reprogram the PCM to the latest calibration using IDS release 78.01 and higher. This new calibration is not included in the VCM 2012.3 DVD. Calibration files may also be obtained at www.motorcraft.com. NOTE: PLEASE ADVISE THE CUSTOMER THAT THIS VEHICLE IS EQUIPPED WITH AN ADAPTIVE TRANSMISSION SHIFT STRATEGY WHICH ALLOWS THE VEHICLE'S COMPUTER TO LEARN THE TRANSMISSION'S UNIQUE PARAMETERS AND IMPROVE SHIFT QUALITY. WHEN THE ADAPTIVE STRATEGY IS RESET, THE COMPUTER WILL BEGIN A RE-LEARNING PROCESS. THIS RE-LEARNING PROCESS MAY RESULT IN FIRMER THAN NORMAL UPSHIFTS AND DOWNSHIFTS FOR SEVERAL DAYS.

you can do a relearn first reset clear mil -code if you can do it with scanner or disconnect battery for a few minutes ----start and let idle for 3 minutes and watch idle should start going down turn off for 60 seconds and let idle again for 3 minutes turn off for 60 seconds and start up and take a drive for about 20 miles need to have speed get up above 44miles per hour for a bit than off gas and let decelerate than back up on speed do this a few times while on drive throttle body should relearn

ok , you scanned or Autozoned it, if latter?, fail you do.
did they write it down wrong?
the code must be told accurately, (im sure you know that)

this code needs honda only meanings, P1
Electronic Throttle Control System Control Relay Off Malfunction
blown 7.5a fuse #15?
baring a simple fuse.
read the FSM./
the FSM covers this code, what to do and to find which part is
bad , not guessing, the ECU cant tell you what part is bad or dirty.
it only tells you what tests failed.
read the FSM or take the car to any ASE certified Mechanic.
this car is Throttle by wire. technology. (a pain , the TSB proves it.)

ever heard of a TSB? all good mech read them first
here is one example, on topic. too.
quote: (look up you car, and YOUR TSBs, read them all)
http://autoproimportrepair.com/Honda_TSB.htm


MIL Comes On With DTC P1659 TSB 05-008
SYMPTOM
In cold temperatures, the MIL comes on with DTC P1659 (electronic throttle control system control relay OFF malfunction). PROBABLE CAUSE Moisture inside the throttle control relay may freeze. This would cause the relay to fail, storing DIG P1659 along with any of these DTCs: P0135: Rear Air Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Circuit Malfunction, P0141: Rear Secondary Heated Oxygen Sensor (Secondary HO2S, Bank 1, Sensor 2) Heater Circuit Malfunction, P0155: Front Air Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Heater Circuit Malfunction, P0161: Front Secondary Heated Oxygen Sensor (Secondary H025, Bank 2, Sensor 2) Heater Circuit Malfunction, P0498: Evaporative Emission (EVAP) Canister Vent Shut Valve Control Circuit Low Voltage. CORRECTIVE ACTION Replace the electronic throttle control relay, the air/fuel sensor relay, and the starter cut relay.

Hi there:Are you check coolant level? Also, there some TSB about some vehicles Lincoln LS 2001-2002 may exhibit an engine overheating condition and/or the Malfunction Indicator Lamp (MIL) may also be illuminated with codes P1285 and P1299 stored in memory. This may be caused by an inoperative Hydraulic Cooling Fan (HCF). Ask your dealer about TSB Article No. 01-21-11 / 10/29/01.
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Dodge Forum stated something about have the PCM reprogrammed may be in order after replacing/getting this code....said there was a tsb for it..NUMBER: 18-015-09

2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316.
ACTION
Diagnose engine for engine misfire concern. If diagnostics determine an engine misfire which is characterized by leakage through exhaust valve(s), only replace the affected cylinder head(s).
SERVICE PROCEDURE FOR VEHICLES WITH RUNS ROUGH/MISFIRE CONDITION:
1. Perform relative compression check on all cylinders. If abnormal, check cylinder leakage and actual compression for "low" cylinders refer to Workshop Manual (WSM), Section 303-00.
2. If leakage/compression check indicates a valve train concern, per valve train diagnostics in WSM, Section 303-00, replace cylinder head and cam assembly, pipe plugs and timing chain tensioner, per procedure outlined in WSM, Section 303-01.
3. If cylinder leakage and compression tests are inconclusive, perform misfire diagnostic, per TSB 05-22-8.

So

PO456 is most times a gas cap or gasket,
to get an incorrect gear ratio the transmission has probably started to slip.

Change the fluid and filter first off in the transmission and use only atf+4 fluid and possibly the govenor pressure sensor,and change gas cap.

wire going to sensor breaks inside the insulation the plug may look ok by looking at it but if you grab hold of one wire at a time right where they go into the connector on the wheel sensors and give a good tug. If wire pulls away from the connector then it means that the connector is bad and wire was broken behind the insulation