98.5 crank no start

[hdpwipmonkey]

6 hours ago, Mopar1973Man said:

ECM issue. The wait to start is directly hooked to the ECM and one of the first instructions at boot time to control that light. If you didn't yet I would contact Auto Computer Specialist.

He just got his PCM and ECM back from them 

Edited March 25, 2023 by hdpwipmonkey

[99dodgecram]

checking for voltage at pump and gonna follow a couple wires to see if something shorted out. anybody have pinout for the ecm plug?

[Mopar1973Man]

It's still possible there is an issue. If the wait to start is flashing like he said in this morning phone call that means something is wrong. I suggested checking power and ground pins on the ECM and contact Auto Computer Specialst. Yup he called this morning for help.

[IBMobile]

3 hours ago, 99dodgecram said:

anybody have pinout for the ecm plug?

It's in the FSM section 8W-80-40 connector pin outs, page 1053.  You'll fined the FSM in the down load section of this web site.

https://mopar1973man.com/files/file/215-1999-ram-fsm/

[99dodgecram]

thank you guys so far it has power and good grounds. same as vp44. codes coming up are p0123 p1388 p1689 p1693 after disconnecting batteries and reconnecting & clearing codes the wait to start light stopped and only p1388 and p1693 are left. Im guessing the ASD is signaling the cutoff and/or testing ohms for th2 communication signals from vp44 connector to ECM connector. 

Edited March 25, 2023 by 99dodgecram

[99dodgecram]

wait to start light is flashing again with no check engine light on. p0123 p1388 p1693 p1694.

Edited March 27, 2023 by 99dodgecram

[Mopar1973Man]

P1694 code is communication problem. Without looking I would say ECM.

 

https://mopar1973man.com/cummins/articles.html/24-valve-2nd-generation_50/51_engine/obdii-error-codes_94/p1694-no-bus-message-received-from-companion-module-r139/?do=getLastComment&d=4&id=139

 

[99dodgecram]

i have 2 shorts they said apps pin 15 and 12v to pump pin 25. i tested the pump and it has almost 13v so idk what else to do im sending it back to them tommorrow i called today they where cool about it I told them everything i replaced and done so far and they said if the tune is off they will fix it and if there is anything wrong wit software tune and they can tell mewhat is coming up again to try to rediagnose.

[99dodgecram]

found short in apps harness no3 0 volts with key off or on

[Mopar1973Man]

You still need to look into the communication error problem.

[99dodgecram]

ordered new apps evn tho i installed the current one in 12/22 Sending the ECM & PCM back tomorrow to get tested pretty sure the tune is messed up on it. I guess they have a test truck hopefully its a 98.5 they will test it on. Also had truck towed to a buddys shop today cant do the wires since im colorblind and dont want to mess anything up with the harness now. this will be the fun trying to explain to these mechanics what i already did and am not paying for them to redo what has already been done. Handing over the wiring schematics and all the info I have done so far. bummed out the color blind **** limits me from time to time like this and now i gotta waste money on something i could of done myself if i could see normally.....

[Mopar1973Man]

3 hours ago, 99dodgecram said:

ordered new apps evn tho i installed the current one in 12/22

I've got the Timbos APPS in the store...

 

https://store.mopar1973man.com/dap-commercial-grade-throttle-position-sensor-tps9804.html

[99dodgecram]

so i got the ecm back again and the tune is correct narrowed it down to one code for the no starting. my wait to start doesnt kick on and there is p1689 buss failure. what should i do now?

[Mopar1973Man]

No Wait To Start no ECM. Check fuses. That is the first instruction is to light the Wait To Start.