View Single Post
  #3  
Old 01-16-2011, 03:53 PM
JamesDean's Avatar
JamesDean JamesDean is offline
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,038
basic multimeter will suffice..

@ X11 connector (round guy typically found on drivers fender under hood on 201's)
duty cycle = (voltage at pin 3 / battery voltage) X 100
(connect meter ground to pin 2)

this will give you an approx. value for duty cycle.

Should be 70% Key on, engine off for federal. 85% for cali.

If its a fixed voltage after say 30-40 seconds of running, then its throwing a fault code and something is broken/out of adjustment/etc
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
Reply With Quote