Old Oct 25, 2024 | 07:21 PM
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red_2005_convertible
Joined: Apr 2012
Posts: 234
Likes: 106
From: Escondido, Ca
Default Re: Need Help, RCM, SLA, TCU? Where to start?

Hi Zip,
Thanks, You're correct, I checked and it's actually pins 1 and 11 on C4 of the PTCM. BTW, to get 60 ohms you need to back probe the C4 connector while it's still connected to the PTCM. If you disconnect from the PTCM, and measure from the front of the connector you should get 120 ohms, and if you measure the pins on the PTCM, you should also get 120 ohms. Unfortunately, my experience was gained the hard way - the CAN BUS splice (S116) in the engine compartment under the brake booster failed, but before I figured that out, I did a lot of diagnostic work. (Not to advertise my posts, but I have a post called "No Crank...." that has all of the voltages and resistances that I measured before I found the bad splice in the CAN BUS. Some other useful info in there is how to manually run the fuel pump or the starter motor.)
-Jerry
 
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