LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saab >> 2003 >> 9-3 Vector, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> TRIONIC T7 Fuel Control System >> Fault Diagnosis Fault Codes >> DTC P0140: O2S Circuit. No Activity Detected. Sensor 2. >> Diagnostic help
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic help

Fault diagnosis concerns an electrical fault in connecting leads or in the sensor.

Functions in the diagnostic tool related to the fault:

NOTE: The oxygen sensor receives reference oxygen from the surrounding air via the connecting cables. For this reason, electrical contact spray or grease must not be used on the oxygen sensor connector.