no power goes out to the fuel pump

2001 MERCEDES BENZ C320
145,673 MILES
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EWIN
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What might be the problem with my 2001 mercedes benz c320. i get power to the fuel pump relay and fuse in trunk but no power goes out to the fuel pump?

i used my test light to see if it geting any power
May 11, 2012 at 3:41 PM
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STRAILER
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There is a SAM control unit on the left side of the trunk that sounds like it has gone bad but to be sure here is a guide and a fuel pump wiring diagram to help you do some testing.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please let us know what happens so it will help others.

Cheers, Ken
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Aug 24, 2017 at 3:26 PM
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FUTURISTIC HENDRIXX
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So what if the SAM control getting power, and not the fuel module line?
Jun 12, 2019 at 7:30 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,840 POSTS
  • ASE Certified Mechanic
Did you check the #3 fuse in the SAM control left side of trunk? If the fuse is good we need to see if the engine has spark because if it doesn't the SAM control will not turn the pump on. Here is a guide to help you check for spark:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please run down this guide and report back.
Jun 12, 2019 at 12:29 PM
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