× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1999 GMC Sierra 1500 SL 5.3L MIL Lamp on
Posted to GM Driveability on 10/24/2014 10 Replies

Hello Friends

This vehicle came in for a big service, including changing transmission fluid and filter. The customer says when the service four-wheel drive light comes on the vehicle will not shift properly. When I hooked up my Modis I got the code B2647 ambi...

10 Replies Received (View Replies)

  Related Documents & Media  1999 GMC Sierra 1500 SL

 
Message Closed w/FIX

car Vehicle Data

1999 GMC Sierra 1500 SL

VIN 2GTEK19T5X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways, Intermittently
Misc.Kig- Cab

Trouble Codes

B2647Ambient Light Sensor Circuit Low
P0758Lockup Solenoid 'B' Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

1999 GMC Sierra 1500 SL

VIN 2GTEK19T5X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways, Intermittently
Misc.Kig- Cab

Trouble Codes

B2647Ambient Light Sensor Circuit Low
P0758Lockup Solenoid 'B' Circuit Malfunction