Ford Focus 2005

[ch66ky]

Here is my issue with my 2005 ford focus. any help would be great.. car ran fine just stopped. original code was P2110, have replaced TB with new..

(OK) [14:12:28.262] Key On Engine Off On Demand Self-Test has been started
(WARN) [14:12:39.798] Test completed, found DTCs: P0121, P0122, P0221, P0223, P1549, P1709, P2110

===DTC P0121===
Code: P0121 - Throttle/Pedal Position Sensor A Circuit Range/Performance

Module: Powertrain Control Module

Diagnostic Trouble Code details

Throttle/Pedal Position Sensor A Circuit Range/Performance

The expected voltage output from TP1 at the WOT or the default position is out of range.

Note: This DTC relates to the ETB.

This DTC may be caused by :

An obstruction in the ETB.

TP sensor faulty or damaged

Faulty ETB

===END DTC P0121===

===DTC P0122===
Code: P0122 - Throttle/Pedal Position Sensor A Circuit Low Input

Module: Powertrain Control Module

Diagnostic Trouble Code details

Throttle/Pedal Position Sensor A Circuit Low Input

Input to the PCM from TP1 is less than the calibrated limit.

Note: This DTC relates to the ETB.

This DTC may be caused by :

Open or grounded circuit.

Incorrect VREF.

TP sensor faulty or damaged

Faulty ETB

===END DTC P0122===

===DTC P0221===
Code: P0221 - Throttle/Pedal Position Switch B Circuit Range/Performance

Module: Powertrain Control Module

Diagnostic Trouble Code details

Throttle/Pedal Position Switch B Circuit Range/Performance

The expected voltage output from TP2 at the WOT or the default position is out of range.

Note: This DTC relates to the ETB.

This DTC may be caused by :

An obstruction in the ETB.

TP sensor faulty or damaged

Faulty ETB

===END DTC P0221===

===DTC P0223===
Code: P0223 - Throttle/Pedal Position Sensor B Circuit High Input

Module: Powertrain Control Module

Diagnostic Trouble Code details

Throttle/Pedal Position Sensor B Circuit High Input

Input to the PCM from TP2 is greater than the calibrated limit.

Note: This DTC relates to the ETB.

This DTC may be caused by :

Signal shorted to VBATT or vref.

Incorrect VREF.

TP sensor faulty or damaged

Faulty ETB

===END DTC P0223===

===DTC P1549===
Code: P1549 - Intake Manifold Communication Control Circuit (Bank 1)

Module: Powertrain Control Module

Diagnostic Trouble Code details

Intake Manifold Communication Control Circuit (Bank 1)

IMRC output failed.

This DTC may be caused by :

Open or grounded circuit.

Short circuit to ground or battery

PCM driver failure.

===END DTC P1549===

===DTC P1709===
Code: P1709 - PNP Out of Self Test Range

Module: Powertrain Control Module

Diagnostic Trouble Code details

PNP Out of Self Test Range

PNP not indicating the desired position during KOEO self-test.

This DTC may be caused by :

Operator error

Faulty switch operation.

===END DTC P1709===

===DTC P2110===
Code: P2110 - Throttle Actuator Control System - Forced Limited RPM

Module: Powertrain Control Module

Diagnostic Trouble Code details

Throttle Actuator Control System - Forced Limited RPM

The system is operating in default mode.

This DTC may be caused by :

Leaks in air induction system

Faulty ETB

Faulty or damaged PCM.

===END DTC P2110===

[boosted_diesel]

Hi there, I’ve seen some of these codes before on a fiesta.
I would start by checking you have what you need at the throttle pedal and the throttle body.
Assuming it’s roughly the same as the fiesta you should find a 6 wire plug on the pedal and also the throttle body.
There should be power/ground signal for each circuit.
Just bear in mind position sensors are often 5v reference but the throttle body actuator circuit is 12v.

If you need any diagrams I might have them on my auto data system. But I would need a few details including make, model, year, engine size, engine code etc to check for diagrams.

Cheers

[ch66ky]

Thanks for the reply, here is the info
Vehicle:
Model: Ford Focus (VIN LFA/LVS/AFA/PE1/FFJ)
Engine: DURATEC-HE / I4
Capacity: 2.0L
Year: 2005
Month: 07
Generation: 2005 MY
Fuel: Gasoline
Transmission gear: Manual
VIN: AFADXXMJDD5A01050

[boosted_diesel]

Ok, your car has the same engine as my car lol.
Ill go look up the diagram just now, hopefully it’s in there.

Cheers

[boosted_diesel]

Ok there is two different engine codes to choose from on your car.

It is the AODA or AODB?

[boosted_diesel]

Thanks for the reply, here is the info
Vehicle:
Model: Ford Focus (VIN LFA/LVS/AFA/PE1/FFJ)
Engine: DURATEC-HE / I4
Capacity: 2.0L
Year: 2005
Month: 07
Generation: 2005 MY
Fuel: Gasoline
Transmission gear: Manual
VIN: AFADXXMJDD5A01050

ok im trying to upload the diagram but i keep getting this message when i add the file

"ERROR
Sorry, the board attachment quota has been reached."

maybe i can just email it to you? or pm it

[boosted_diesel]

figured it out. diagrams below.

diagram colour coding:

focus 2005 colour code diagram.png (48.64 KiB) Viewed 1353 times

throttle body diagram: the throttle body is A177, motor actuator is M89, throttle position sensor is B169

focus 2005 tb diagram.png (168.54 KiB) Viewed 1353 times

i had to split the throttle pedal diagram into two halves as it wouldnt fit on the screen: B138 is the pedal sensor

top half:

2005 focus pedal pos sensor top half.png (185.24 KiB) Viewed 1353 times

bottom half:

2005 focus pedal pos sensor bottom half.png (200.98 KiB) Viewed 1353 times

[ch66ky]

Thanks for the diagrams, Would also like to know how to recalibrate the throttle, as codes say WOT wide open position. but the throttle is closed.

[boosted_diesel]

Thanks for the diagrams, Would also like to know how to recalibrate the throttle, as codes say WOT wide open position. but the throttle is closed.

Hey, no problem. I think you just reset the pcm learned values.
The live data should show the requested vs the actual position.
So throttle pedal is the requested amount and throttle body is the actual position of the flapper in the body.
The live data may show the pedal sensor is guff. But before writing it off use the diagram to ensure the pedal and body both have all they need to function.
Unfortunately the pedal sensor and the body are common issues.
I’ve even had to replace the plug and pigtail going to a throttle body before because the female pins were mangled by some idiot with a multimeter.

Looking at the codes it could be anything. Even a minor short in the 5v ref brining the voltage down. I think it is saying on one of the codes that when the pedal is at WOT not both sensors agree on that, the voltage reading from one is lower or higher than expected. Check the 5v ref actually has 5v with engine on.

If you need anything else just ask I may have the data or whatever it is.

Cheers

[ch66ky]

Thanks For the Reply Boosted, will check those things. so minor short, will check all the plug harnesses. will get back to you ... cheers..