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EAC Fail


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#1 skyman114

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Posted 02 August 2009 - 03:24 PM

Hi all picked up my 05 plate 1.4tdci Fusion on saturday and after only 126miles i have the EAC Fail warning on the dash...does anyone know what the possible cause is? and no i did not put petrol in it !!!

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#2 mintalkin

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Posted 02 August 2009 - 05:20 PM

ford have had problems with eac failures you need to have a scan done to get the fault code.

P0220 Throttle/Pedal Position Sensor/Switch B Circuit Malfunction
P0220 ETS Throttle Position Sensor Property Malfunction
P0221 Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance Problem
P0222 Throttle/Pedal Position Sensor/Switch B Circuit Low Input
P0223Throttle/Pedal Position Sensor/Switch B Circuit High Input
P0224 Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
P0225 Throttle/Pedal Position Sensor/Switch C Circuit Malfunction
P0226Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance Problem
P0227 Throttle/Pedal Position Sensor/Switch C Circuit Low Input
P0228 Throttle/Pedal Position Sensor/Switch C Circuit High Input
P0229 Throttle/Pedal Position Sensor/Switch C Circuit Intermittent

#3 skyman114

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Posted 02 August 2009 - 06:46 PM

ford have had problems with eac failures you need to have a scan done to get the fault code.


I assume that a scan can only be carried out at the main dealers ?

#4 mintalkin

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Posted 03 August 2009 - 02:59 PM

any good local garage will be able to do a code scan for you and it will be cheaper than fords.

#5 fordtech

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Posted 03 August 2009 - 03:04 PM

ford have had problems with eac failures you need to have a scan done to get the fault code.the following may help

Fault codes definition:

Pedal fault codes

P2120 Pedal sensor 1 electrical error

P2122 Pedal sensor 1 electrical error short to ground or open circuit

P2123 Pedal sensor 1 electrical error short to battery

P2125 Pedal sensor 2 electrical error

P2127 Pedal sensor 2 electrical error short to ground or open circuit

P2128 Pedal sensor 2 electrical error short to battery

P2138 Pedal sensor 1 & 2 ratio error

Throtlle body fault codes

P0120 Throttle position sensor 1 electrical error

P0122 Throttle position sensor 1 electrical error short to ground

P0123 Throttle position sensor 1 electrical error short to battery or line break

P0220 Throttle position sensor 2 electrical error

P0222 Throttle position sensor 2 electrical error short to ground or open circuit

P0223 Throttle position sensor 2 electrical error short to battery

P2135 Throttle position sensor ratio error

P2119 Throttle plate convergence error. The throttle flap has not moved to the required position. This can be from an obstruction or incorrect signal. Check wiring and connectors.

P2176 - Throttle plate adaption error. After the ignition is switched off, the throttle body will run through an adaption cycle and spring check. This confirms correct functioning of the throttle body through the full range. If other fault codes are stored, they should be investigated first before P2176.

P2100 - H bridge error. Fault in circuit between throttle body motor and PCM.

PCM fault codes

P2107 - Processor monitoring on the main controller fault

P2108 - Analogue to digital converter. This can be a number of different sensors and will often be triggered with other fault codes that are more specific. P2108 can relate to mass air flow, engine speed, pedal ratio, TPS ratio, torque generation, engine speed limitation etc.

If there is inteferance or the voltage is not regulated correctly, the signal for pedals or throttle body will be out of range

P0641 Sensor voltage supply circuit 1 noisy signal

P0642 Sensor voltage supply circuit 1 short to ground or open circuit

P0643 Sensor voltage supply circuit 1 short to battery

P0651 Sensor voltage supply circuit 2 noisy signal

P0652 Sensor voltage supply circuit 2 short to ground or open circuit

P0653 Sensor voltage supply circuit 2 short to battery

These are mainly petrol engined codes , get the code read and go from there

#6 skyman114

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Posted 03 August 2009 - 05:24 PM

These are mainly petrol engined codes , get the code read and go from there


Its booked in on Wednesday so i`ll let you all know the outcome :)

#7 skyman114

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Posted 06 August 2009 - 07:39 PM

All is not well.... took it to the local main dealer under warrenty who said i would have to pay for the diagnostic work should a code not appear! So i asked what are the chances of that? Maybe i was told!!!
So contacted the suppling dealer who said they would look at it, now the fun part they are about 75miles from home.
I have asked that they carry out this work on a saturday as i work Mon to Fri " we don`t do diagnostic work on a Saturday"

What would you do next?

#8 mintalkin

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Posted 06 August 2009 - 08:16 PM

talk to customer services on 0845 841 1111 and see if they can come up with a solution that does not involve travelling back to the original dealer.

#9 skyman114

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Posted 21 August 2009 - 03:05 PM

Problem now solved.

The car now drives as it should, and no longer feels sluggish.

Air flow sensor fault was the cause.


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