Dead instrument cluster!!!! Will it start with used one? P1638 code, dead cluster.
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Senior Member
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From: Florida
Dead instrument cluster!!!! Will it start with used one? P1638 code, dead cluster.
Details for Jag mechanics:
I was diagnosing code P1638 step by step and found that instrument cluster is bad.
Step G195523t35 (from ALLDATA)
Resistance is checked between data link connector pin 6 and 14 (yellow and green wires)
If resistance is between 50 and 70 Ohms, cluster is bad. Please verify if you have real Jag manual.
For all:
I'll go and get cluster tomorrow. Questions:
Which year to which year fits? Mine is 2003(not 2002.5)
Will engine start with "new" used cluster?
Where is odometer mileage memory? Which mileage will it show?
Thanks.
I was diagnosing code P1638 step by step and found that instrument cluster is bad.
Step G195523t35 (from ALLDATA)
Resistance is checked between data link connector pin 6 and 14 (yellow and green wires)
If resistance is between 50 and 70 Ohms, cluster is bad. Please verify if you have real Jag manual.
For all:
I'll go and get cluster tomorrow. Questions:
Which year to which year fits? Mine is 2003(not 2002.5)
Will engine start with "new" used cluster?
Where is odometer mileage memory? Which mileage will it show?
Thanks.
Veteran Member
Joined: May 2009
Posts: 27,541
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From: Yorkshire, England
Do not connect another.
If you try to start it will go into anti-theft and you'll need a dealer tool to get it out of that.
What ohms do you have? As you can see from the electrical guide, the CAN terminators are in PCM (aka ECM) and ICM and 120 each (so in parallel 60). They're resistors and not prone to failure whereas connectors, wires, etc all are.
2002.5 (UK) = 2003 (US)
If you try to start it will go into anti-theft and you'll need a dealer tool to get it out of that.
What ohms do you have? As you can see from the electrical guide, the CAN terminators are in PCM (aka ECM) and ICM and 120 each (so in parallel 60). They're resistors and not prone to failure whereas connectors, wires, etc all are.
2002.5 (UK) = 2003 (US)
Last edited by JagV8; Sep 12, 2016 at 01:27 AM.
Joined: Mar 2012
Posts: 4,759
Likes: 1,435
From: Hazlet Township, NJ
Do not connect another.
If you try to start it will go into anti-theft and you'll need a dealer tool to get it out of that.
What ohms do you have? As you can see from the electrical guide, the CAN terminators are in PCM (aka ECM) and ICM and 120 each (so in parallel 60). They're resistors and not prone to failure whereas connectors, wires, etc all are.
2002.5 (UK) = 2003 (US)
If you try to start it will go into anti-theft and you'll need a dealer tool to get it out of that.
What ohms do you have? As you can see from the electrical guide, the CAN terminators are in PCM (aka ECM) and ICM and 120 each (so in parallel 60). They're resistors and not prone to failure whereas connectors, wires, etc all are.
2002.5 (UK) = 2003 (US)
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Senior Member
Joined: Sep 2008
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From: Florida
Thanks for your responses! Very important info!
Resistance was about 55 Ohm.
I am including test 35 from ALLDATA.
Please verify it is wrong.
I spent a few hours trying to download JTIS21. Unfortunately it doesn't work. About a week ago I successfully downloaded on my dad's computer, it worked fine.
What is normal CAN voltage?
Resistance was about 55 Ohm.
I am including test 35 from ALLDATA.
Please verify it is wrong.
I spent a few hours trying to download JTIS21. Unfortunately it doesn't work. About a week ago I successfully downloaded on my dad's computer, it worked fine.
What is normal CAN voltage?
Thread Starter
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Senior Member
Joined: Sep 2008
Posts: 913
Likes: 72
From: Florida
I went to a Jag dealer to talk to mechanics. They said most likely bad instrument cluster and showed a box with 2 cluster, I guess 04-05, gauges were full circle, not semi circle(03).
BTW, instrument cluster says "Ford". Fords around my year (03) take used clusters with dealer programming.
I'll check P1638 code for 03 LincolnLS, possibly better description
BTW, instrument cluster says "Ford". Fords around my year (03) take used clusters with dealer programming.
I'll check P1638 code for 03 LincolnLS, possibly better description
Joined: Dec 2009
Posts: 13,741
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From: Wise County,TX
I uploaded a copy of my Student Guide MULTIPLEX SYSTEMS. It has all sorts of info but it is over a decade old. It should have answers for your era of car.
bob
bob
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Senior Member
Joined: Sep 2008
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From: Florida
Dealer mechanics programmed another speedometer, charged me 1 hour for programming and $135 for second key which I didn't have and they needed for programming.
My Jag was parked for about 8 months, I didn't have time to deal with it.
My Jag was parked for about 8 months, I didn't have time to deal with it.
Last edited by car5car; May 5, 2017 at 09:41 AM.
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