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Registered 2002 SLK 230 R170
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355 Posts
Discussion Starter #1
Hi,

Can someone please assist me -

I have a copy of WIS/ASRA but am not very knowlegable on using it.

What I am trying to get is any Wiring Diagram that shows the Front SAM Wiring and the Cruise Control Wiring.

I'm trying to sort out a non-working Cruise Control that DOES NOT throw any fault codes.

Assistance gratefully received. :smile:

Mike
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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97,266 Posts

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Registered 2002 SLK 230 R170
Joined
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355 Posts
Discussion Starter #3
Thanks Jeff,

Tried that and it does not appear to be present on their lists.

Regards

Mike
 

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Super Moderator UK 2002 SLK320 Blue
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3,057 Posts
I hope the attached helps:

To guide you:
N3/10 is the ME-SFI [ME] control module.
S40 is the Cruise Control switch.
S40s1 Resume from memory
S40s2 Decelerate and set
S40s3 Accelerate and set
S40s4 Off
S40s5 Control contact​

I'd check the fuse shown and the connector x1 to see if the connector has come adrift.

Diagnostic info basically is as follows:
On N3/10 each of the five inputs should measure under 1V with the ignition on and the switch not activated. As you activate each switch the corresponding pin should go to 12V. Pin 4.34 should go to 12V when any switch is activated - in addition to the switch input itself.

On N3/10 the pins are:
Pin 4.31 Decelerate/set switch
Pin 4.32 Acceleration/set switch
Pin 4.33 Cruise control OFF switch
Pin 4.34 Control contact switch. No switch activated - voltage under 1 VDC. Any switch activated this should measure 12 VDC
Pin 4.35 Memory recall switch
 

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