Mike’s Retrofit Aircon Cruise Heated Seats ++

[TiggR_R1]

OK so I get,

Ignition off - the only pin with 12v is pin 30, nothing on the others.

Ignition on - the only pin with 12v is pin 30, nothing on the others.

Ignition on & Aircon switched on 12v on pin 30 and pin 86, nothing on the others.

Ignition on & Aircon switched on & Engine running 14v on pin 30 and pin 86, nothing on the others.

At least my alternator is fine


Happy to recheck if it is not what you expect, got a bit soggy on the drive in not so sunny Bolton.

 

[MickyG]

Excellent- thank you and sorry you got wet!
We’re away in The New Forest celebrating our 40th wedding anniversary with the family this week so I won’t be able to check until Saturday.

Out of interest did you try checking from 12v positive to these pins as I think ( but am not sure) that switching the Aircon on could create a route to earth which would only show if you tested against the positive rather than to earth?
Don’t worry if one, or more, show floating values of voltages - this can be normal. The one I’m looking for is to show 12v to a pin that is a switched earth when the Aircon is switched on.

 

[TiggR_R1]

I'll try later in the week from the 12v positive jump start post under the bonnet to earth on the pins to see if there is any difference that way.

 

[MickyG]

Brilliant , thank you.
I’m hoping that pin 85 changes to earth giving -12v from the positive terminal when you switch the Aircon on?
(No rush - I’m not back until Saturday.)

 

[TiggR_R1]

MickyG,

Please disregard post 161 completely.
My mistake I got the relay positions confused when turning over the relay to check terminal numbers.

I have now checked again (double & triple).

The image below should help, the relay terminal numbers are how the socket looks as you look directly at it with the relay removed.
I hope that makes sense?

Earth to positive column = earth taken from chassis/body and positive probe into terminal number indicated.
Positive to earth column = positive taken from Jump start terminal and earth probe into indicated terminal number.

Again I hope that makes sense.

 

[MickyG]

MickyG,

Please disregard post 161 completely.
My mistake I got the relay positions confused when turning over the relay to check terminal numbers.

I have now checked again (double & triple).

The image below should help, the relay terminal numbers are how the socket looks as you look directly at it with the relay removed.
I hope that makes sense?

Earth to positive column = earth taken from chassis/body and positive probe into terminal number indicated.
Positive to earth column = positive taken from Jump start terminal and earth probe into indicated terminal number.

Again I hope that makes sense.

Brilliant - thank you. I’ll eagerly test my car tomorrow