C4 Picasso P1336 / P0303 and others.

[Timb7095]

Please help my c4 picasso has running issues with codes p1336 and p0303 my vin number is VF7**************[VIN obfuscated, can be read by forum staff].
It also has other issues, directional indicator fault, handbrake fault, esp/asr system fault, depollution system fault. Also controls on steering wheel work very rarely.
If anybody could help with any issues I would be very grateful.

Tim

[RichardW]

Welcome along.

I have split this off into its own thread.

The braking faults are likely a red herring caused by loss of data from the engine ECU. The 2 engine faults seem related for a cyl 3 misfire. Plug or coil or wiring? Unless there's a mechanical issue.... The indicator and wheel button faults could indicate that there is a fault with the switch unit behind the wheel. You really need to get it on decent diagnostics to get a steer on where to go.

[Timb7095]

Thanks, the hand brake won't release and says auto handbrake off.

I've changed the spark plugs, suppose coil pack is the next step.

[RichardW]

Handbrake should release if you press the brake and then pull the switch? Auto mode goes off if it can't see what the engine is doing.

[Timb7095]

]Your correct Richard it does, after further investigation the plastic piece that joins the one brake to the other has snapped. Is there any way of just buying the plastic piece, or has it fit to be the whole cable?

Thanks in advance for your help

Tim

[Timb7095]

Broken part

[RichardW]

That's only available as part of the main cable from the handbrake unit under the front passenger seat. It's not that expensive or too hard to change.