Chrysler Repair: 1999 Chrysler Cirrus, chrysler cirrus, 1999 chrysler cirrus

Question
Hey Roland. Let me start by saying thank you for all of your help. When  itake off the cap for the relays the schematic shows the starter relay and the ASD relay. I pulled the asd relay and the sockets had the following numbers. I am also going to include the Ohms to ground. I pulled the starter relay because it had the socket numbers 93-89 that you had said to check first.

ASD Relay Socket(relay out- numbered as follows)
    87
81   82   83 3-177 ohms
    79
    0 Ohms


Starter Relay Socket(relay out- numbered as follows)
    97
91   92   93 0 Ohms
    89
    3.8 Ohms


When I check both relays pins to the sockets I get about 70 Ohms measured so I think the relays are unfortunately good. Also I also notice that fuse 1 (ABS) is also blowing along with Fuse 5. Next wuestion how would I get to the red tan wire from that pin? Thank you for your help.


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Followup To
Question -
Folluw Up: Roland, I have detected 0Ohms in socket 93 of the starter relay, 89 has around 3 Ohms. I am a little stuck as what to do from here. It would make sense that when I changed the battery that something may have come loose from the positive jump node when I took the battery off since the starter also has a clamp there. Could it be the solenoid on the starter that is bad? or should I focus on electrical? Thanks you greatly for all of your help.

jason



1999 Chrysler Cirrus, Auto trans, 6 cylinder
I changed the output sensor on the car and it worked fine when I went on the test run. Went in and showered and the car was completely dead. When jumped it would run for five minutes and die.

The battery was completely shot. When I replaced that the car would turn but not start. I noticed the fuse that controls the PCM and auto shut down relay is blowing when I connect the negative cable. What should I do,, please help.

thanks for the help on the sensor!

Answer
Hi Jason,
I presume you mean fuse #5 (20 amp). The relay and then PCM are the only things attached directly to that fuse. I would pull the relay, and see what the resistance to ground is from pins 93 and 89 in its socket and which go respectively to PCM pin 67 and to a splice that powers the oxygen sensor (though that is fused), 3 of the fuel injectors, egr transducer, generator, distributor. If either of those pins is near 0 ohms then that is why the fuse if blowing and you'll have to trace the item(s) to find out why. If those 2 pins seem to be have more than 1 ohm resistance, then I would measure the resistance from pin socket 91 or 97 of the ASD relay (both of which are attached to the fuse also) and see if it
reads near 0 ohm. If it does, then pull the multi-pin plug off the PCM and see if it sends the resistance up above 1 ohm, which would indicate a short in the PCM if that were the case, and if not a short in the wire from the fuse socket to pin 67 of the PCM.
So that is the idea, find out where all that current that is blowing fuse 5 is going to (e.g. where the resistance to ground is close to 0 ohms.
Roland

Answer -
Hi Jason,
I am a bit lost. In the first question you said the ASD relay was connected to the fuse that blew, now you said you were measuring at the starter relay (though that one doesn't have a 93, so maybe you meant the ASD relay).
And just in case, can you verify that it is fuse #5 that blew?
It is good that the 89 has 3 ohms because that means all those items on it are not shorted. Now on the 93, I am not sure whether it is a sign of a short or not because that pin oscillates between 0 and infinite depending upon the PCM control of it, which of course is not possible with the fuse blown. So I would do the following:

check the resistance between pins 91 and 93 of the relay proper, as you find it when removed from the socket. If it is 0 ohms then the relay is shot. If the relay is o.k.:
Then I would measure from pin 91 of the socket for the relay
(with the relay removed) to ground (and with the fuse #5 removed so the battery is not connected to it). If it is 0 ohms then either the red/tan wire from that pin to pin 46 of the PCM is grounded or the PCM's pin 46 is grounded (bad PCM). So to test that remove the gray plug from the PCM and see if the reading goes to infinity or remains at 0. If it remains at 0 then the wire is grounded, if it goes infinite then the PCM is shorted at pin 46 (check that to verify). If so then the PCM has gone bad.
So let me know what you find.
Roland  

Answer
Hi Jason,
Now I am really confused. I have been working with the '96 Cirrus shop manual and had assumed that the numbering of the power distribution center would be no different. If they have reversed the relay socket assignments, then I really am hindered in giving suggestions. The #1 fuse in my manual is for the blower motor resistor block of the heater system, not the abs. My drawing shows the starter relay to be on the same side of the distribution center as all the other relays (except the high speed fan relay and the ASD relay). Is yours the reverse of that? If so, then you may need to get a '99 wiring diagram to figure out what is going on. My manual shows the opposite pin number assignments for the relay sockets from that which you listed (79-87 are for the Starter relay, 89-97 are for the ASD in my manual). I suppose the only change may have to do with reversing those two sockets and we could reanalyze on that basis, but then even fuse 1 is a different assignement so that may be a risky assumption.
Roland