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Home >> Saab >> 2003 >> 9-3 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Theft Protection - 9-3 (9400)) >> Fault diagnosis fault Codes >> DTC B1780: Immobilizer Data. Invalid Data >> Main condition

Main condition

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

The diagnostic trouble code is generated if a fault is found during two test cycles in succession. A test cycle lasts one second, i.e. it takes two seconds from when the fault occurs until a diagnostic trouble code is generated. If the fault disappears, the trouble code is deleted from the control module memory after the ignition has been turned on 20 times.

Diagnostic trouble codes are not generated if the voltage is below 11 V or over 14 V.

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