Technical Grande blower/heater resistor (5 pin) on MK2 (4 pin)?

[sinl]

I ran into the common problem where the blower fan worked only on max, which was as expected to be caused by blower resistor faults (burnt resistor pin and loom plug joint). I tend to replace them myself, but it is however incredibly difficult to find a 4-pin loom plug (the resistor is easy to get though) for MK2, more common is the Punto Grande's 5-pin type. Therefore I wonder if it is somehow possible use the 5-pin type on MK2 (omit one wire connection)?

 

[flisko]

it probably is, you will just need to play with wires to get speeds right, i took resistor with connector from mk2 and fit it to mk1 and it works

 

[drabik]

Hi sinl, did you manage to use the 5-pin loom plug for the 4-pin resistor? Thanks Peter

 

[ian lewis]

Are you sure it is the resistor pack?

i have had two mk2 puntos in the family that have lost fan speeds and in both cases it was the wiring in the plug into the resistor pack, not the pack itself.

Put it on a speed that doesn't work and give the wiring into the plug a wiggle.

i just cut the multiplug off and replaced with four separate 4.8mm connectors - get uninsulated ones and add heatshrink or tape as the insulated ones are too big to fit side by side

 

[nitramtpr]

I had the same issue, not the resistor pack at all but melted wiring before the multiplug.

 

[PuntoHowTo]

i just cut the multiplug off and replaced with four separate 4.8mm connectors - get uninsulated ones and add heatshrink or tape as the insulated ones are too big to fit side by side

If you can’t find the wiring plug then :yeahthat:

The larger plug is more Common because the grande is half Vauxhall’s corsa and so shares the heater blower with most GM cars.

If your 4 pin plug has failed, then better to get a good connection with some spade connectors than it is to try and hack an ill fitting connector or to try to splice a later model resistor and end up causing a fire.