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Home >> Saturn >> 2007 >> Sky Base, Standard >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC B3055 >> Circuit/System Verification

Circuit/System Verification

IMPORTANT: When using this diagnostic, more than one vehicle key is required to ensure proper diagnosis. If more than one key is not available at the time of service, contact the customer and ask if any other keys can be provided for service. If unavailable, a new second key can be created.
  1. Inspect all available vehicle keys that they are correct PK3+ keys and that the molded head is undamaged.
    • If damaged or not a correct PK3+ key, replace the key.
  2. While viewing DTCs with a scan tool, attempt to start the vehicle using all of the available keys. The vehicle should start with all available keys.
    • If only one key results in inoperative starting and DTC B3055 is set as current, replace the suspect key.
    • If all available keys result in inoperative starting and DTC B3055 is set as current, replace the TDM.
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