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The 2.5 TD engine is the WL-T engine so all those circuits above that have the WL-T listed against it are possible causes of the problem, its normally the wiring itself that is the cause but can be something on the end as well of course! 15 Amp Mini fuse Engine - Control System - WL-T Engine - Cooli...

Welcome, which engine do you have ? The fuse you mention covers many things which will all fail if it blows, but without knowing which engine..... 15 Amp Mini fuse Engine - Control System - WL-T Engine - Control System Ignition - FE-E,J5-DE Engine - Fuel Control System - FE-E, J5-DE Engine - Cooling...

Any error code will only exist whilst the hold/glowplug light is flashing, if the light is not flashing then the error codes don't exist.

With an automatic gearbox you need to link the; TAT, pin M to Ground which is E or V pins on the diagnostic socket with a straight link. Then you need to use a small 12v bulb or LED for 12v working; FAT, pin F via the lamp to the +12v pin (Battery) on pin D, if you use a LED then make sure its conne...

As regards use of FEN and TEN pins are you a MANUAL gearbox ? If not then you need FAT and TAT pins which are for the Automatic gearbox see below: Flashing HOLD or flashing GLOWPLUG light means the computers Transmission Control Module (TCM) and Power Control Module (PCM) that make up the Engine Con...

Show us a picture of your diagnostic socket ? You do realise the diagram is upside down as shown as its from a different Mazda vehicle from the Bongo. "just stops when buton pressed" which button are you pressing that stops it ? When its Beeping then the Up/Down switch should work, but the...

There are quite a few circuits that are NOT controlled by the Ignition switch but controlled by the ECU itself which also remains powered when the ignition is off, this is normal there are engine functions that need to happen during cooling down etc. With regard to the AFT, does the beeping stop on ...

The scavenger fan runs from the temperature sensor that is mounted under the handbrake handle and juts into the engine housing to measure the temperature, its controlled by the ECU and will shut off when the temperature drops but the question is why is it thinking the engine housing temperature is t...

Have you tried cleaning the switch in the front cabin roof, that controls Up/Down ? The switches get very dirty!
To get it out using the ignition key to depress the tab on the surround
Then open up the switch
clean the contacts.

I think this has been discussed before but basically force fitted. See here for one method https://www.igmaynard.co.uk/bongo/forum ... 36#p402536

I've noticed that the conditions seem to get stricter and stricter, far from certain its based on actual problems more likely they can increase sales of other policies or they can try to justify removing restrictions by increasing the price. Just at the moment with inflation being so rife all costs ...

Depends on the temperature of the engine, after a cold night the glowplugs need to be able to vaporise the fuel. Once the engine is warm then the glowplugs are turned off by the ECU (not the timing light) hence even when a little warm then the glowplugs won't need to be used, but you won't know abou...

Have you checked that there is power to the glowplug busbar, and also I wonder about the age of the glowplugs themselves ? There is a fusible link for the glowplugs that bolts on the arm of the battery and leads down to the glowplug relay on the offside behind the battery, it looks like a normal pie...

That is correct if you left the ACC powered up the then the switching spikes from the starter motor stand a good chance of doing damage to any electronics which are not specifically designed. The very low current backup supply, the ECU all have additional spike protection, most other circuits are al...