Technical U1601 can bus circuit

[pinkbecka]

Hi after my engine management light coming on over a week ago last night my car failed to start so after calling rac he has been out and got my car started after but gave me the following error code. Does anyone know how i can fix this?

 

[Ziggy122]

thats the immoboliser not detectinghe key

so if the key code light and engine light are on the car is locked down to prevent it been stolen

ziggy

 

[s and b]

as the great zig says
try your car key on its own without being attached to any other jingly jangly

if this fails to sort the issue get the earth lead on the ecu under the aircleaner checked out with a clean up and replace back

 

[pinkbecka]

Hi guys me key light isn't on just engine management light?

 

[s and b]

i dont recal there is a symbol on a mk2 for lock out
there is for mk2b ie big headlight grille in bonnet model 53 plate onwards

so i assume you have mk2 v reg to 03 plate with slitty headlights

you still need to take on board what i say though because fairy dust wont work

a few mk2 dash displays showing engine management light which would lead rac man pulling your chosen code:idea:

 

[pinkbecka]

hi its a y reg fiat punto it does have a key lock light but it is not lit im taking it to the garage on monday can someone tell me what i should get them to check sorry for apearing a bit thick but im a woman who knows feck all about cars lol :worship:

 

[atom0007]

Have you tried to start with the spare key?

 

[Ziggy122]

when u put the ignition on does the key code light come on and go off?

ie does the light work?

 

[pinkbecka]

i only have the blue key and yes it works it comes on and goes off

 

[s and b]

i only have the blue key and yes it works it comes on and goes off

so whats the problem then
try turning key slower when starting your car or even turn key so dash lights on /fit your seatbelt /turn the starting motor
unles your key is a copy key then i cant see why you have a problem

maybe car failing to start is a red herring from an earlier stored code of u601

 

[atom0007]

There are 2 blue keys. No red.

 

[josize]

Was this resolved as I have the same fault? (intermittent starting)