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View Full Version : Peugeot 508 - gearbox fault : P171A -brake signal fault


bursuc
9th February, 2016, 08:49 PM
Hello all dk friends,

I have a big problem

Car is peugeot 508 1.6 hdi with semi-auto gearbox cp300
Engine ecu is siemens sid 807evo

I cant erase this fault code and gearbox only drive in limp mode.
No auto mode available

I change. Brake pedal sensor and engine ecu ( i was thinking is the can bus in engine ecu )

Fault :

P171A. - brake signal fault ( switch/ can )

On engine ecu failt codes are :

P0685 - power relay control
U1133. - Lin network
U1134. -Lin network
U1400 - Alternator Lin network

Anyoane who had experience with this fault codes ?

Please help.... i start dreaming this peugeot :(
lush29
10th February, 2016, 12:47 AM
Hello all dk friends,

I have a big problem

Car is peugeot 508 1.6 hdi with semi-auto gearbox cp300
Engine ecu is siemens sid 807evo

I cant erase this fault code and gearbox only drive in limp mode.
No auto mode available

I change. Brake pedal sensor and engine ecu ( i was thinking is the can bus in engine ecu )

Fault :

P171A. - brake signal fault ( switch/ can )

On engine ecu failt codes are :

P0685 - power relay control
U1133. - Lin network
U1134. -Lin network
U1400 - Alternator Lin network

Anyoane who had experience with this fault codes ?

Please help.... i start dreaming this peugeot :(
P171a is to do with the gear swift

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bursuc
10th February, 2016, 05:00 PM
Fixed. It seems there were some broken wires near alternator. Thanks :)

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citroenc4boy
18th February, 2018, 08:57 AM
Fixed. It seems there were some broken wires near alternator. Thanks :)

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I have the same fault brake like on all time . (New sensor on brake pedal) and new altinator . Same faults as title . Any ide ? Tanks for help
bursuc
18th February, 2018, 02:51 PM
I have the same fault brake like on all time . (New sensor on brake pedal) and new altinator . Same faults as title . Any ide ? Tanks for helpTry to go with reset the auxiliary belt and make sure alternator is witg start\stop and working as original. Is same part number?
citroenc4boy
21st February, 2018, 06:50 PM
reset the auxiliary belt in edc ecu ?
citroenc4boy
21st February, 2018, 06:50 PM
Yes same oem number