
2003 GMC Envoy SLT 4.2L MIL Lamp on
Hey Guys, I have this 2003 Envoy with a U1000 code that keeps resetting under both PCM & IPC. Vehicle came in and customer stated that MIL light was on but went off on the way over to us. For the P0128 code I'm going to replace the thermostat. The U1000 code i...
Summary posted 6/7/2008
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Message Closed w/Summary
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VIN | 1GKDT13SX3 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0128 | Cooling System Malfunction |
U1000 | Class 2 Communication Malfunction |
Message Closed w/Summary
Vehicle Data
2003 GMC Envoy SLT
VIN | 1GKDT13SX3 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0128 | Cooling System Malfunction |
U1000 | Class 2 Communication Malfunction |