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Home >> Saab >> 2003 >> 9-3 Vector, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (TRIONIC T7 Fuel Control System) >> Fault diagnosis, fault codes >> DTC P0140: O2S Circuit No Activity Detected Sensor 2 >> Checking the wiring

Checking the wiring

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.

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.

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