2007 Chevy Suburban service rear park assist message

Tiny
FGDJR
  • MEMBER
  • 2007 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 45,000 MILES
Is there any way to test the rear park assist sensors? Maybe an ohm reading? There is 8 volts going to the sensors but the system won't operate. Just a red light at the back pillar. Any ides?
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Thursday, February 18th, 2010 AT 6:44 PM

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Tiny
BRIAN 1
  • MEMBER
Have it scanned for dtc's, it too hard to diagnose without a code, on these A fault anywhere on the circuit or in any single sensor will affect all of the sensors. These sensors are wired in a series parallel. When testing it should have 8-9 volt reference. Its easier to use a scan tool and switch sensors with different locations and see if the dtc sets on a different location, post back with the code.
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Thursday, February 18th, 2010 AT 8:20 PM

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