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Panda Gearbox fail - no gear available

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Panda Gearbox fail - no gear available

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Dweeb

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Apr 20, 2019
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Hi everyone,
My panda 1.2 dynamic has had an intermitant fault with going into limp mode. Used a fault meter and got P1221 FAULT,throttle position sensor so bought a new one. Swapped out what looked like the same part and now the dash reads gearbox fail,no gear available. Put the old part back on but still reading the same message, engine idles well just can't select a gear, any help would be appreciated.This is a 2005 dynamic with auto gearbox
 
The Duologic is a manual type gearbox and clutch with computer controlled servos to work the clutch and shift the gears. You will need the paid-for version of MultiECUscan to see what is going on with the faults and settings.
 
varesecrazy said:
Hi.
The duologics can be a bit tempramental

Really need a special program to reset the gearbox system..

But in the meantime.. uncouple the battery negative lead overnight.. cutting battery power might just reset it.

Charlie
Click to expand...

Will try this,Thank you
 
If Charlie's suggestion doesn't help, there's a few simple Dualogic-related things to check, although none of them have any particular relation to the throttle position sensor.
Are you fairly sure no wiring was disturbed at the same time (e.g. changing a rear bulb, unplugging ECU connector etc)?
I know it sounds a bit weird, but there are a few things that cause the Dualogic ECU to refuse to operate, mostly to do with brake light switch and rear light clusters.
 
Let's hope it just needs a relearn in multiecuscan

by the way

P1221 is rarely the throttle position sensor on the Panda. Normally its the accelerator pedal. There's several types and I think the Dual- is different again
 
irc said:
If Charlie's suggestion doesn't help, there's a few simple Dualogic-related things to check, although none of them have any particular relation to the throttle position sensor.
Are you fairly sure no wiring was disturbed at the same time (e.g. changing a rear bulb, unplugging ECU connector etc)?
I know it sounds a bit weird, but there are a few things that cause the Dualogic ECU to refuse to operate, mostly to do with brake light switch and rear light clusters.
Click to expand...

This throttle position sensor is a particular shape with a three pin connection. I removed what I thought was this piece but the new one fitted gave the fault, I put the old one back on but still have the fault. I guess unplugging whatever this was has caused the fault, it was located down the side of the battery which is not near the throttle body where you would expect to find it.
 
I think that's likely.
I'm not near a petrol Panda at the moment or I'd go and have a rummage. (Diesel with manual box is not going to help much!)
You sure whatever it is has been plugged back in properly?

As has been mentioned earlier, the TPS errors on Pandas tend to be either pedal or connector problems.
(Oh yeah, my previous post should have read "no other wiring" - think my phone is turning dyslexic)
 
Last edited:
Dweeb said:
This throttle position sensor is a particular shape with a three pin connection. I removed what I thought was this piece but the new one fitted gave the fault, I put the old one back on but still have the fault. I guess unplugging whatever this was has caused the fault, it was located down the side of the battery which is not near the throttle body where you would expect to find it.
Click to expand...

Battery power off made no difference.?

Does it effect running??


SOME dash lights clear after several non.fault engine starts..


Keep us informed :)

P.s. a photo of said component would help lots.. ;)

Charlie
 
varesecrazy said:
Battery power off made no difference.?

Does it effect running??


SOME dash lights clear after several non.fault engine starts..


Keep us informed :)

P.s. a photo of said component would help lots.. ;)

Charlie
Click to expand...

No other wiring touched, car runs well, have included picture of part and general location. Have looked at fuses and a 20amp one is blown, shows a foot pedals is protected so guess this is the brake, will change out in an hour or so.
 

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no idea what you have changed. On a manual gearbox thats where the clutch slave cylinder would be?

the blown fuse is probably a big hint

even the same car a year different can have a totally different fuse box layout.


each fuse is labelled with a picture on the inside of the fuse box cover.


What's the picture say it for ?
 
koalar said:
no idea what you have changed. On a manual gearbox thats where the clutch slave cylinder would be?

the blown fuse is probably a big hint

even the same car a year different can have a totally different fuse box layout.


each fuse is labelled with a picture on the inside of the fuse box cover.


What's the picture say it for ?
Click to expand...

Mine is a picture of a pedal so I guess it is the brake, have replaced the fuse and still getting same message on the dash "Gearbox Fail" " Gear not available"

Getting frustrated now as I have run out of options, took the negative terminal off battery for several hours and this has not reset the issue.
 
That looks like one of the position sensors.
When you said it looked the same, how "same" did it look?
Not near my pile of Dualogic bits at the moment so can't identify it easily, but it's possible the sensor didn't like being disturbed, or that it's not back in quite the right place.
If you have MultiECUScan, is the gearbox throwing an error right now, and do you get a new one if you move the gear lever?

If no MultiECUScan you could try removing it again and re-seating.
(If you do, please get a picture or two of it - could help identify which one it is. Also a picture of the one you fitted for comparison could give an idea of if it could have dislodged something inside)
 
I am confused.

TPS is nowhere near being under the battery tray on most Pandas


Clutch and gearbox is there and the throttle body is under the air filter.
 
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