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2006 SLK350
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Discussion Starter · #1 ·
Hey guys,

Preface: I searched using variations of the codes and o2 sensor but found nothing. My apologies if this is already covered.

Have an intermittent check engine light. Scanned the codes and getting:
-P2237 o2 sensor positive current control open bank1 sensor 1
-P2237 o2 sensor positive current control cuircuit /open bank 1 sensor 1
-P2240 o2 sensor positive current control circuit/open bank2 sensor1
-P0607 - The electronic analysis system for the O2 sensor in the engine control unit is defective.
-P0607 - Voltage supply of component Motor electronics / Battery voltage too low for ADC
-P0607 - Control module has an internal error.

I assume the P0607 codes are a result of the P2240/p2237 codes. Question is what bank is it referring to? Is it a fuse/relay or is it the actual o2 sensor itself that needs to be replaced? Anyone done this before?

Problem comes for a day then gone next day after about 4-5 starts in that day.

Thanks
 

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*Premium Member
2005 SLK350
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2,562 Posts
Hey guys,

Preface: I searched using variations of the codes and o2 sensor but found nothing. My apologies if this is already covered.

Have an intermittent check engine light. Scanned the codes and getting:
-P2237 o2 sensor positive current control open bank1 sensor 1
-P2237 o2 sensor positive current control cuircuit /open bank 1 sensor 1
-P2240 o2 sensor positive current control circuit/open bank2 sensor1
-P0607 - The electronic analysis system for the O2 sensor in the engine control unit is defective.
-P0607 - Voltage supply of component Motor electronics / Battery voltage too low for ADC
-P0607 - Control module has an internal error.

I assume the P0607 codes are a result of the P2240/p2237 codes. Question is what bank is it referring to? Is it a fuse/relay or is it the actual o2 sensor itself that needs to be replaced? Anyone done this before?

Problem comes for a day then gone next day after about 4-5 starts in that day.

Thanks
I have not dealt with this fault before but it looks to me that the P0607 is triggering the O2 sensor faults. If you haven't, you should have the car hooked up to the MB Star Diagnosis Assistance System as it will likely tell you exactly what the issue is and where the trouble is located. Some of our members have the system and may be located near you.
 

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Registered
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1 Posts
Hey guys,

Preface: I searched using variations of the codes and o2 sensor but found nothing. My apologies if this is already covered.

Have an intermittent check engine light. Scanned the codes and getting:
-P2237 o2 sensor positive current control open bank1 sensor 1
-P2237 o2 sensor positive current control cuircuit /open bank 1 sensor 1
-P2240 o2 sensor positive current control circuit/open bank2 sensor1
-P0607 - The electronic analysis system for the O2 sensor in the engine control unit is defective.
-P0607 - Voltage supply of component Motor electronics / Battery voltage too low for ADC
-P0607 - Control module has an internal error.

I assume the P0607 codes are a result of the P2240/p2237 codes. Question is what bank is it referring to? Is it a fuse/relay or is it the actual o2 sensor itself that needs to be replaced? Anyone done this before?

Problem comes for a day then gone next day after about 4-5 starts in that day.

Thanks
Good day, Swoley2k, I am having the same exact problem with my 2007 SLK 280, Please let me know how did you solve it (if you did), Thanks
 

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Founding Member 2006
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108,846 Posts
Good day, Swoley2k, I am having the same exact problem with my 2007 SLK 280, Please let me know how did you solve it (if you did), Thanks
Welcome to SLKWorld.com: The #1 Mercedes-Benz SLK Forum from Florida!

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*Premium Member
2005 SLK350
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Good day, Swoley2k, I am having the same exact problem with my 2007 SLK 280, Please let me know how did you solve it (if you did), Thanks
Same suggestion to the OP - what is going on with your battery. A less than perfect battery in your SLK can cause all kinds of gremlins. Confirm the battery is correct (full or nearly so CCA rating) and then clear the codes to see what comes back first.
 
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