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jeffrey590, Master Saab Technician
Category: Saab
Satisfied Customers: 2819
Experience:  ASE Master Technician , Saab Master Technician w/ 35 years Dealer Experience in Advanced Level Diag.
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Saab: Hi, I have two other question,please. I got other

Resolved Question:

Hi,

I have two other question,please.
I got other problems.

The scan showed this message below.
P1682-00 Plausibility Fault between voltage feed from +15 and main relay.

This is the other message on scan.
P1312-00 Ionization Signals Implausible, Sooted Sparkplugs.

I already changed four sparkplugs and ignition coil too. The coil was already used but it works well.

Thank you,
Robert
Submitted: 1 year ago.
Category: Saab
Expert:  jeffrey590 replied 1 year ago.
Hello Robert, Can you supply year and model of your vehicle? Also VIN would help.. Thank you, Jeffrey
Customer: replied 1 year ago.

Hi!


Sorry,here is the details.


2003 Saab 9-3 2.0t


YS3FB49S631027078


Thanks


 

Expert:  jeffrey590 replied 1 year ago.

Hello Robert, Thank you for the info. Providing the coil is in fact good then the Combustion Ionization Module may be at fault. This is the module on the drivers side engine directly in front of the firewall. Also make sure to use original equipment spark plugs to avoid a false code being generated.

 

P1682-00 indicates a poor connection in the +15 accessory circuit. Most common problem is a corroded or poor connection in connector H42-2...which is located under the battery tray. Separate and clean contacts with contact cleaner and check for any pushed out pins. If I can assist further I will be happy to. Thank you, Jeffrey

jeffrey590, Master Saab Technician
Category: Saab
Satisfied Customers: 2819
Experience: ASE Master Technician , Saab Master Technician w/ 35 years Dealer Experience in Advanced Level Diag.
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