I started to test my climate control servo (ACC II system).

The first tests call for unplugging the electrical multi-pin connectors and testing the servo pins.

How am I supposed to read them? There is no numbering on the servo or connector?

I am looking from above, with the unit in the car.

Is 1, 2, 3 etc from left to right from above, or assuming I had the servo in my hand and was looking at the pins straight-on? (In other words, backwards if seen from above?)

Other times I have done this stuff it was on Bosch connectors, which are usually numbered... or the manual has indicated the wiring colours to the pins in question... so have never been aware of the rule.

I ask as one test involves applying 12v to some pins and I don't want to do it wrong.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22

Here is the link to the Chrysler manual for this system.

1971 Chrysler Imperial Auto-Temp 2 Service Reference Guide - Session 281

There is a diagram in the back.

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech