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Home >> Saab >> 2001 >> 9-5 Base, 4D Wagon, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Fault Code Diagnosis >> P1631: Internal Control Module - Malfunction >> Diagnostic Help
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Diagnostic Help

Fault diagnosis concerns an electrical fault in connecting leads or in the sensor. Functions in the diagnostic tool related to the fault are:

With the engine stationary, the value should correspond with the two other pressure sensors. Accepted difference is 10 kPa.