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P1389 and the ASD relay is working?
06-18-2010, 06:10 AM
Post: #1
P1389 and the ASD relay is working?
My Ram 1500 wont start .

I have checked the codes and it it trowing P1389 it is the ASD relay.

I have checked the relay under the hood and the relay is working fine?

What can it be?

Thanks and greetings,


Erik
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06-18-2010, 03:15 PM
Post: #2
RE: P1389 and the ASD relay is working?
have you checked to see if you have fuel and spark? thats what the asd controls, i would check these items first.
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06-20-2010, 06:51 PM
Post: #3
RE: P1389 and the ASD relay is working?
How did you test the relay? Did you swap it with another one? There are two 1389 codes. A regular one and a M one. A lot of the time it the CPS.
Does it crank but not start, or totally dead?




"Andrew"
2000 Dodge Ram QC Sport
3" Skyjacker
34" Nitto Grapplers on Series 51 Crawlers
MagnaFlow Cat
Flowmaster 40 Muffler
HyperTech PPIII
HD Steering
Borgenson Steering Shaft

1997 Jeep Cherokee - Bone Stock for now
"No Fat Chicks, Truck Will Scrap"
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06-21-2010, 09:02 AM
Post: #4
RE: P1389 and the ASD relay is working?
(06-20-2010 06:51 PM)JackedUp Wrote:  How did you test the relay? Did you swap it with another one? There are two 1389 codes. A regular one and a M one. A lot of the time it the CPS.
Does it crank but not start, or totally dead?


When I switch the key to the crank posititon the relay is clicking, I have changed it with another relay from the horn and still not working.

ALso changed the the ECu but no luck.

It cranks but wont start.

Thanks and greetings,

Erik
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06-21-2010, 11:23 AM
Post: #5
RE: P1389 and the ASD relay is working?
If it cranks but won't start and that code, I'm saying CPS def.




"Andrew"
2000 Dodge Ram QC Sport
3" Skyjacker
34" Nitto Grapplers on Series 51 Crawlers
MagnaFlow Cat
Flowmaster 40 Muffler
HyperTech PPIII
HD Steering
Borgenson Steering Shaft

1997 Jeep Cherokee - Bone Stock for now
"No Fat Chicks, Truck Will Scrap"
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06-21-2010, 11:29 AM
Post: #6
RE: P1389 and the ASD relay is working?
(06-21-2010 11:23 AM)JackedUp Wrote:  If it cranks but won't start and that code, I'm saying CPS def.

I have an OBDII scanner on my laptop, can I check the CPS signal?

Is the tachometer powerd by the CPS because I have a signal on the tach?

Thanks and greetings,


Erik.
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06-21-2010, 04:22 PM
Post: #7
RE: P1389 and the ASD relay is working?
I do not know if you can check it with the OBD2 scanner. I have always done it ruling everything I can think of out, then replacing it if nothing else works.
Making sure all the wires are good to the battery, starter and alternator.
Make sure you have spark.
Unplugging the CPS and seeing if you're voltage meter or fuel meter work properly (if you have voltage that is) If they both work correctly, then the CPS is bad.
You can also rule out the NSS but moving the shifter up and down, trying to start in N, the NSS can mask the CPS and code sometimes.

Has your truck overheated at all lately? that's the biggest reason for a failed CPS.
That's all I can think of off the top of my head. It's hard to diagnois through a computer. Dunno




"Andrew"
2000 Dodge Ram QC Sport
3" Skyjacker
34" Nitto Grapplers on Series 51 Crawlers
MagnaFlow Cat
Flowmaster 40 Muffler
HyperTech PPIII
HD Steering
Borgenson Steering Shaft

1997 Jeep Cherokee - Bone Stock for now
"No Fat Chicks, Truck Will Scrap"
Visit this user's website Find all posts by this user
Quote this message in a reply
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