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2002 GMC Sonoma SL 4.3L MIL Lamp on
Posted to GM Driveability on 4/19/2013 9 Replies

Generally speaking a heater circuit code does not present too big a problem unless the wires are shorted or broken, but this is not the case here. All purple and purple/white wires intact and not grounding anywhere. So back to my wiring diagrams and I find the...

9 Replies Received (View Replies)

  Related Documents & Media  2002 GMC Sonoma SL

 
Message Closed w/FIX

car Vehicle Data

2002 GMC Sonoma SL

VIN 1GTCT19W22
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Spider
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2002 GMC Sonoma SL

VIN 1GTCT19W22
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Spider
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0155Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction