Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2003SONOMA 2D PICKUP, 4.3 X, AUTOMATICREPAIR AND DIAGNOSISGENERAL INFORMATIONCOMPUTER RELEARN PROCEDURES
2003 GMC Sonoma 2D Pickup, 4.3 X, Automatic
Computer Relearn Procedures
2003 GMC Sonoma 2D Pickup, 4.3 X, AutomaticSECTION Computer Relearn Procedures
- Introduction
- Crankshaft Position Sensor System Variation Learn Procedure
- Notes
- ALERO, Aurora, BONNEVILLE, Cavalier - 2.2L, Century, Grand Am, Grand PRIX, Impala, LESABRE, MALIBU, Monte CARLO, Park Avenue, Regal & SUNFIRE - 2.2L, AZTEK, MONTANA, Rendezvous, S10 Pickup - 2.2L, Silhouette, SONOMA - 2.2L & Venture
- Avalanche, Astro, Blazer, BRAVADA, Cab & Chassis, Chevy Express, Corvette, Cutaway, DEVILLE, Envoy, Envoy XL, Escalade, Escalade ESV, Escalade Ext, RV Cutaway, S10 Pickup - 4.3L, Safari, SATURN - 2.2L, SAVANA, SAVANA Camper Special, SAVANA Special, SEVILLE, Sierra, SILVERADO, SONOMA - 4.3L, Suburban, TAHOE, Trailblazer, VUE - 2.2L, YUKON & YUKON XL
- Engine Control Module Or Powertrain Control Module
- Notes
- Service Programming System
- Service Programming System Remote Procedure (Except Corvette)
- Service Programming System Remote Procedure (Corvette)
- Service Programming System Pass-Thru Procedure
- Service Programming System Off Board Remote Procedure
- Service Programming System Off Board Pass-Thru Procedure
- Idle Air Control Valve Learn Procedure
- Theft Deterrent System Components
- 10-Minute Learn Procedure (ALERO, Grand Am & MALIBU)
- 10-Minute Learn Procedure (Cavalier, Century, Corvette, Impala, Monte CARLO, Regal & SUNFIRE, & All Trucks Except AZTEK, MONTANA, Rendezvous, Silhouette & Venture)
- 30-Minute Learn Procedure (Cavalier, Century, Corvette, Impala, Monte CARLO, Regal & SUNFIRE, & All Trucks Except AZTEK, MONTANA, Rendezvous, Silhouette & Venture)
- Set Up A New Theft Deterrent Control Module (Aurora, BONNEVILLE, Cts, DEVILLE, Grand PRIX, LESABRE, Park Avenue & SEVILLE, & All Trucks Except AZTEK, MONTANA, Rendezvous, Silhouette & Venture)
- 10-Minute Learn Procedure (Aurora, BONNEVILLE, Cts, DEVILLE, Grand PRIX, LESABRE, Park Avenue & SEVILLE, & All Trucks Except AZTEK, MONTANA, Rendezvous, Silhouette & Venture)
- 30-Minute Learn Procedure (Aurora, AZTEK, BONNEVILLE, DEVILLE, Grand PRIX, LESABRE, MONTANA, Park Avenue, Rendezvous, SEVILLE, Silhouette & Venture)
- Throttle Body Relearn Procedure
- Throttle Position Sensor Learn Procedure
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.