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Old 04-11-2018, 04:41 PM   #1
bundybear75
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Default Start inhibit switch playing up.

Hi all

Over the last couple of days I've had a couple of instances where the Mondeo hasn't started when I've turned the key. A foot on the brake and a wiggle of the shifter and it starts fine.

My question is, where is the inhibitor switch? At the selector or in the box somewhere? I'm hoping it's somewhere easy to get to and not a gearbox out effort....

My wife occasionally drives the Mondeo (under protest) so i don't want her bailed up somewhere and unable to start it. Makes it harder to get her to drive it.....

If it's a box out effort i may just bypass the switch altogether.

Cheers
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Old 04-11-2018, 06:39 PM   #2
cobrin
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Default Re: Start inhibit switch playing up.

Just throwing it out there if it were the inhibitor switch wouldn't it say on the display 'Put it in Park. You could test starting it in Neutral. If nothing is showing there all I can think of atm is battery cable and startermotor and relay.

It cranks but not starts or doesn't crank at all?

Just to get you warmed up

even though it's not for your Model you can still use it for reference and change to your vehicle.
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Old 04-11-2018, 08:47 PM   #3
bundybear75
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Default Re: Start inhibit switch playing up.

Quote:
Originally Posted by cobrin View Post
Just throwing it out there if it were the inhibitor switch wouldn't it say on the display 'Put it in Park. You could test starting it in Neutral. If nothing is showing there all I can think of atm is battery cable and startermotor and relay.

It cranks but not starts or doesn't crank at all?

Just to get you warmed up

even though it's not for your Model you can still use it for reference and change to your vehicle.
Makes sense. I haven't noticed any warning or error chime, but I've been a bit surprised and just wriggled the shifter and turned the key again.

It doesn't turn over, just dash lights then nothing when you turn the key. A wiggle and it starts normally, no indication of low battery or loose connection.

I'll trawl through the other thread tomorrow, i have a 3am start in the morning so should be sleeping....

Cheers
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2012 MC Mondeo LX TDCi Wagon - Highway Hack 392K km and counting - Now gone 😢
2008 Peugeot 308 HDi - Highway Hack II
2008 Citroen C4 HDi - Highway Hack III
2010 Peugeot 308 HDi SW - Shaggin Wagon II
2016 VDJ200R Landcruiser GX Wagon - TTD V8 Power !
2017 Toyota RAV4 GX Wagon - Shopping trolley - Gone
2022 Volvo XC40 T4 Inscription - Shopping trolley II
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Old 05-11-2018, 02:19 PM   #4
rondeo
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Default Re: Start inhibit switch playing up.

There's a pic of the transmission range sensor on page 39 of the (Croation) pdf:

https://www.scribd.com/document/3309...T-450#download

Also shows the PARK mechanicals.


The range sensor would serve the function of start inhibit, using magnets and hall effect sensors. As far as I can make out.
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Old 06-11-2018, 05:53 AM   #5
bundybear75
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Default Re: Start inhibit switch playing up.

Quote:
Originally Posted by rondeo View Post
There's a pic of the transmission range sensor on page 39 of the (Croation) pdf:

https://www.scribd.com/document/3309...T-450#download

Also shows the PARK mechanicals.


The range sensor would serve the function of start inhibit, using magnets and hall effect sensors. As far as I can make out.
Bugger that looks internal to the gearbox.....

Plan B of bypassing the switch may be in order. Transmission is due for a oil change next service so maybe that will help.

Oh well, still enjoy driving the car, soon to have completed 100K km in a bit over 2 1/2 years
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2012 MC Mondeo LX TDCi Wagon - Highway Hack 392K km and counting - Now gone 😢
2008 Peugeot 308 HDi - Highway Hack II
2008 Citroen C4 HDi - Highway Hack III
2010 Peugeot 308 HDi SW - Shaggin Wagon II
2016 VDJ200R Landcruiser GX Wagon - TTD V8 Power !
2017 Toyota RAV4 GX Wagon - Shopping trolley - Gone
2022 Volvo XC40 T4 Inscription - Shopping trolley II
2002 BMW R1150GS
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Old 14-11-2018, 06:05 PM   #6
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Default Re: Start inhibit switch playing up.

It has happened a couple of times today, and I now think it may be the ignition switch.

Both times it has indicated park on the dash, the last time I didn't wiggle the selector, just turned the key off then back on and it started.

Does anyone know if the switch mechanism on the back of the key barrel a replaceable item or would it be the whole ignition barrel? I replaced one on my commodore a few years ago and it was just the switch that had to be changed.
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2012 MC Mondeo LX TDCi Wagon - Highway Hack 392K km and counting - Now gone 😢
2008 Peugeot 308 HDi - Highway Hack II
2008 Citroen C4 HDi - Highway Hack III
2010 Peugeot 308 HDi SW - Shaggin Wagon II
2016 VDJ200R Landcruiser GX Wagon - TTD V8 Power !
2017 Toyota RAV4 GX Wagon - Shopping trolley - Gone
2022 Volvo XC40 T4 Inscription - Shopping trolley II
2002 BMW R1150GS
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Old 14-11-2018, 08:24 PM   #7
cobrin
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Default Re: Start inhibit switch playing up.

I don't know about replaceable bits but looks to be for '07-'10
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Old 15-11-2018, 03:20 AM   #8
bundybear75
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Default Re: Start inhibit switch playing up.

Quote:
Originally Posted by cobrin View Post
I don't know about replaceable bits but looks to be for '07-'10
image
Hoping it is something like this....

https://www.ebay.com.au/itm/Ignition...-/142766513918

This listing is for up to 2010 though. I need to see if i can't find a parts catalog to get a part number and check with my local Ford. It will be a pain to change I'm sure.....
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2012 MC Mondeo LX TDCi Wagon - Highway Hack 392K km and counting - Now gone 😢
2008 Peugeot 308 HDi - Highway Hack II
2008 Citroen C4 HDi - Highway Hack III
2010 Peugeot 308 HDi SW - Shaggin Wagon II
2016 VDJ200R Landcruiser GX Wagon - TTD V8 Power !
2017 Toyota RAV4 GX Wagon - Shopping trolley - Gone
2022 Volvo XC40 T4 Inscription - Shopping trolley II
2002 BMW R1150GS
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Old 21-01-2019, 06:20 PM   #9
bundybear75
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Default Re: Start inhibit switch playing up.

Finally had a chance to replace the ignition switch. Genuine Ford part was about $40 at my local dealer.

Switch itself was an easy change, unplug the wiring and then 2 clips to remove. The plastic surround on the steering column was a different story..... One screw was a 7mm hex socket. The other was a T20(?) Torx screw. I could not get it undone, ended up snapping the plastic off then gluing it back together. It's now a standard hex head bolt to lol.
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2012 MC Mondeo LX TDCi Wagon - Highway Hack 392K km and counting - Now gone 😢
2008 Peugeot 308 HDi - Highway Hack II
2008 Citroen C4 HDi - Highway Hack III
2010 Peugeot 308 HDi SW - Shaggin Wagon II
2016 VDJ200R Landcruiser GX Wagon - TTD V8 Power !
2017 Toyota RAV4 GX Wagon - Shopping trolley - Gone
2022 Volvo XC40 T4 Inscription - Shopping trolley II
2002 BMW R1150GS
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