Originally Posted by
1sweetride
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
I have only the 2005 SRT and 2007 Limited service manuals. GOt them both from this very site, in PDF form. My documents are not better, it's just that I've been leafing thru them, helping others, working on my three roadsters since 2009.
OK, you have the "myster no start" but in your case, the Engine Control relay pulls in. You know the starter and pulse module are OK. But do you KNOW the engine control relay is actually closing well enough to pass 12 volts for the ECU to start up? Here is a test:
Turn key to start, if it does not engage the starter, release to "ON".
Wait 45 seconds.
If the engine fan warps to high speed, your problem is no power from the RCM to ECU. You can find the problem with a voltmeter, either the RCM you have has a bad engine control relay (contacts bad) or the solder joint at the connector is fractured, the fuse on the RCM is blown or there is trouble in the harness.
If the engine fan does NOT run really fast, you have:
... a bad clutch interlock switch (manuals only)
... a bad shift lever assembly (autos only)
... a bad traction control relay on the RCM (or, again, fractured solder where the connector mates with the circuit board on the RCM).
... a defective ECU (never happens)
... a serious problem with the CAN BUS such that the Shift Lever Assembly (SLA) can't talk to the transmission control module (TCM) or between the TCM and ECU.
Make sure the fuses on the RCM are all good.