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2012 Jeep Grand Cherokee Laredo 3.6L MIL Lamp on
Posted to Chrysler Driveability on 11/23/2020 8 Replies

Hey all, 2012 Jeep Grand Cherokee 3.6L came in with stored p0420 and p0430 catalyst efficiency codes. Front oxygen sensors are not lazy (switch rich/lean normally) and downstream sensors look normal at 2500 rpm, holding steady near half a volt, and ther...

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  Related Documents & Media  2012 Jeep Grand Cherokee Laredo

 
Message Closed w/FIX

car Vehicle Data

2012 Jeep Grand Cherokee Laredo

VIN 1C4RJFAG5C
Engine3.6 L / 6 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHard Fault

Trouble Codes

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

car Vehicle Data

2012 Jeep Grand Cherokee Laredo

VIN 1C4RJFAG5C
Engine3.6 L / 6 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHard Fault

Trouble Codes

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