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1999 Chevrolet Blazer 4.3L MIL Lamp on
Posted to GM Driveability on 5/28/2004 3 Replies

This blazer came in with these codes the first time and I'm thinking that the fuse is probably [...]'s [...] checked powers and ground to al three heaters as well as voltage [...] observed three times on the techview all 3 o2s lighting off within the allowable...

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  Related Documents & Media  1999 Chevrolet Blazer

 
Message Closed w/Summary

car Vehicle Data

1999 Chevrolet Blazer

VIN 1GNCS13W2X
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / vortec
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter O2 Moniter Cycle

Trouble Codes

135b1s1 O2 heater
147b1s3 O2 heater
155b2s1 O2 heater
Message Closed w/Summary

car Vehicle Data

1999 Chevrolet Blazer

VIN 1GNCS13W2X
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / vortec
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter O2 Moniter Cycle

Trouble Codes

135b1s1 O2 heater
147b1s3 O2 heater
155b2s1 O2 heater