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2002 Pontiac Montana 3.4L MIL Lamp on
Posted to GM Driveability on 2/18/2006 3 Replies

With key on, all modules have no codes and data can be read, after starting, will not communicate data with aftermarket scanner (snap-on), and these codes all return. When abs module left out of circuit, all can be read but code u1040 comes back. Have checked ...

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  Related Documents & Media  2002 Pontiac Montana

 
Message Closed w/Summary

car Vehicle Data

2002 Pontiac Montana

VIN 1GMDU03E42
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

C1298serial data in abs module list
U1040Lost Communication With Antilock Brake System Module
U1300Class 2 Data Line Short To Ground
Message Closed w/Summary

car Vehicle Data

2002 Pontiac Montana

VIN 1GMDU03E42
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

C1298serial data in abs module list
U1040Lost Communication With Antilock Brake System Module
U1300Class 2 Data Line Short To Ground