4X4 service light on

Tiny
WENDYENGLERT
  • MEMBER
  • 2003 CHEVROLET ASTRO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 79,000 MILES
I have a 2003 Blazer the encoder motor for the 4x4 is bad. Is there more then one encoder motor for this year and do I have to have it programed by a GM dealership?
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Friday, April 1st, 2011 AT 10:03 PM

3 Replies

Tiny
RASMATAZ
  • EXPERT
2003 Chevrolet Astro 4x4 service light on

https://www.2carpros.com/articles/service-engine-soon-or-check-engine-light-on-or-flashing

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
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Friday, April 1st, 2011 AT 11:49 PM
Tiny
WENDYENGLERT
  • MEMBER
Already have the code. P0308 motor A/B Ckt open they ran diagnosis and found encoder motor open
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Saturday, April 2nd, 2011 AT 4:59 PM
Tiny
RIVERMIKERAT
  • EXPERT
According to my reference, the P0308 code is a short to ground on either A or B motor control circuits. You will need to find where the short is and fix it. Look for frayed wires and missing insulation.
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Tuesday, June 14th, 2011 AT 4:39 AM

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