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2003 Chevrolet Trailblazer LS 4.2L MIL Lamp on, OTHER SERVICE LMPS
Posted to GM Driveability on 9/5/2007 9 Replies

When the heater fan is turned on the 4wd service lamp, ABS lamp, Brake warning lamps come on and the U1041 code sets when fan is turned on. When this happens, the fan does not come on and the communication with the scanner is cut off. When the fan is turned of...

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  Related Documents & Media  2003 Chevrolet Trailblazer LS

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Trailblazer LS

VIN 1GNDT13573
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Other Service Lmps
OccursAlways, Intermittently
Misc.4.2 6 Cyl.

Trouble Codes

B0790Transfer Case Neut. Indicator Circuit
C0379Front Axle Circuit Malfunction
U1000Class 2 Communication Malfunction
U1041Loss of Electronic Brake Controller Communication
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Trailblazer LS

VIN 1GNDT13573
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Other Service Lmps
OccursAlways, Intermittently
Misc.4.2 6 Cyl.

Trouble Codes

B0790Transfer Case Neut. Indicator Circuit
C0379Front Axle Circuit Malfunction
U1000Class 2 Communication Malfunction
U1041Loss of Electronic Brake Controller Communication