Thread: Pulse Module?
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Old Jul 13, 2023 | 04:51 PM
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1sweetride
Joined: Jun 2012
Posts: 30
Likes: 16
From: Fort Myers, Fl
Default Re: Pulse Module?

Originally Posted by pizzaguy
That is the famous-for-draining-batteries alarm siren. Many have replaced theirs, others just disconnected them and let it go at that.

TUrn key to START, if starter does not engage, release to ON.
Wait 45 seconds.
Does engine cooling fan warp up to high speed? If so, replace the RCM or send it to DJ for reworking.

If the engine fan does NOT warp up to high speed, we have other things to check. It is NEVER the PCM, avoid ANY garage that tells you the PCM is bad.
OK pizzaguy, I am back with a rebuild RCM. Installed back in car and tried to start but no go. Traction control and engine control relays both pull in. Opened the pulse module and manually closed the start relay and the engine turned over with no fire even with fuel pump relay on manually.
I purchased the shop manual when I bought the car but looks like you have a higher level of documentation than I do.
What do you suggest as the next check point?
Thanks
 
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