307 Automatic issues

[PC2CV]

A friend has a 307 1.6 Automatic.
It has an intermittent fault when travelling up hills it will go into what seems like a limp mode and the car will say "gearbox fault"
I have seen this after reading it on the PP2000 machine:



Would the pressure regulation mean low fluid,i tried to check the level but could not see any dipstick for the gearbox.

[xantia_v6]

Which type of automatic transmission is fitted to the car? If you don't know, then get the VIN and someone can look it up.

[PC2CV]

According to servicebox its an AL4, the engine is a TU5JP4 1.6

[RichardW]

This box is well known for having trouble with the solenoid valves that cause pressure regulation faults and random gear engagement problems.

However, not sure if the lower 2 faults are related - they look possible more like faults with the underbonnet fuse box - are there any faults recorded in that ECU? They could be 'collateral damage' from the valves though I suppose!!

[wheeler]

Almost certainly will need modified electrovalves & the software updated.
The other 2 faults will be 'phantom' faults.

[RichardW]

That's what I thought really, just hanging on there might be a crumb of comfort for the OP!!