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2009 Cadillac Escalade Hybrid 6.0L MIL Lamp on
Posted to GM Driveability on 2/26/2018 8 Replies

Thanks for help on this hybrid escalade, it sets faults for both cats, they were just replaced at another shop with aftermarket parts. The upstream o2 sensors switch normally, the down stream stay around 725 - 800 mv while driving. On a hard decell they will g...

8 Replies Received (View Replies)

  Related Documents & Media  2009 Cadillac Escalade Hybrid

 
Message Closed w/Summary

car Vehicle Data

2009 Cadillac Escalade Hybrid

VIN 1GYFK43559
Engine6.0 L / 8 cyl / ELECTRIC/GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/Summary

car Vehicle Data

2009 Cadillac Escalade Hybrid

VIN 1GYFK43559
Engine6.0 L / 8 cyl / ELECTRIC/GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)