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Home >> BMW >> 2015 >> 650i 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - Bank 1 (N63TU) >> Fault Code Tests >> DTC P13D4: BMW DTC 168B21; DME -- Knock Sensor 4 Circuit 'A' Low (Bank 2) >> Fault description

Fault description

The diagnosis monitors the knock sensor.

Fault monitoring conditions:

The fault is detected when there is a short circuit to ground.