Touchscreen Sat Nav - Information and Diagnostics - PART 1

The Ford Mondeo hit our roads in 1993, and has consistently been a sales success. Now on its 4th incarnation, it remains a drivers favourite.
For more information, visit the Ford Mondeo forum on TalkFord.com, the definitive resource site covering all Fords from the present day to the 1970's.

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Overview Guide
Ford Model:	Mondeo
Petrol/Diesel:	????
Estimated Cost:	????
Difficulty?	????
How long does this take?	????

This article is Part 1 of 3.

Part 1 = Touchscreen_Sat_Nav_-_Information_and_Diagnostics_PART_1

Part 2 = Touchscreen_Sat_Nav_-_Information_and_Diagnostics_-_PART_2

Part 3 = Touchscreen_Sat_Nav_-_Information_and_Diagnostics_-_PART_3

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I've (L11XXY) put together this guide for all members who have the Denso Touchscreen Sat Nav fitted to their cars and also for anyone who may wish to retrofit the system in the future.

It covers most of the things you will need to know, including photos of the screen for Diagnostics.

System Description

High End Touchscreen Satellite Navigation fitted as an option to most of the Mk3 Mondeo, S Max and C Max models.

Features

Large Touchscreen Interface with boot mounted DVD ROM, additional 6 Disk Changer. Climate controls are an integral part of the Touchscreen Unit. Voice Guided instructions, On Screen Instructions, Postcode Lookup, POI Data etc etc..

Bluetooth Phone support is an option which requires an additional Blueooth Module. None of the Audio Range on the MK3 came with Bluetooth built into the headunits.

What breaks?

Certain components can fail on the system, the most common being the DVD ROM in the boot. This is mostly optical or mechanical drive failure. It is rare for the circuit boards to fail, howver it does still happen.

The Climate control unit can also fail, giving an error #9342 - Replace Unit. The climate control module acts as a 'gateway' for certain parts of the CAN BUS system (Controlled Area Network) that allows the car to 'talk' to the modules that it needs to.

Touchscreen Failure is rare, but does happen. This can be caused by liquid ingress or heavy handed abuse if the unit is removed for any reason, so be careful!

GPS Ariel Base Failure - This is normally associated with a small GPS icon with a line through it that appears under the TMC Icon. Will also show up as A$204 ANT on the nav diagnostic error log.

Failure is caused by water ingress into the base assy, which can be rectified by cleaning and drying out but a replacement is normally the best way forward. Costs about £40 from Ford.

How can i fix it?

Normally, changing the damaged component is the only way forward. Touchscreen Units are rare secondhand, the DVD ROM a little more accessable from time to time, however the Climate Control Module is the same as the Std EATC module fitted to the facelift MK3. The only difference is a ribbon cable connector on the board. Therefore should yours fail, paying £30-£50 for an EATC module and changing the boards with your Touchscreen unit is better than shelling out £120 for the Touchscreen variant.

DVD ROM drives can be fixed by swapping the drives over and or the circuit board, whichever is at fault.

Accessing the Diagnostics

Turn on the igntion Turn on the Headunit Press 'NAV', then Agree. Press and hold the 'MENU' button for about 10 seconds At this point you should have the following screen

Type in the following code - 842520 Press Enter

You will now have this screen

Press the General Info button gives you this....

General Information Guide

AUDIO

Starts a Self Test of all speakers, front and rear antenna (where fitted)

ISO TP

Not Sure Yet

FNOS

Information on Software Revisions for System

MSG CHECK

Starts the Self Test of the CAN BUS System

HEC - HYBRID Electronic Cluster (Instrument Cluster)

ACU - Audio Control Module (Radio Unit)

CDDJ - CD Changer Communication

DISP - Display Communications

EATC - Climate Control Communication

VRM - Voice Recognition Module (Also Known as BT/VCM, Bluetooth Module)

RSE - Rear Seat Entertainment Comms

PJB - 12v Power Confirmation