2000 Saturn SLFACTORY OEM SERVICE PROCEDURE

Anti-Theft DTCS

ANTI-THEFT DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
B2947 Security System Power Circuit Low
B2948 Security System Power Circuit High
B2957 Security System Sensor Data Circuit Low
B2958 Security System Sensor Data Circuit High
B2960 Security System Cylinder Data Incorrect, But Valid
B3031 Security System Controller In Learn Mode
B3033 Security System Indicates Tamper
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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