Reference Voltage Testing

Measuring a sensor's supply voltage at the sensor connector, referenced to that sensor's own ground pin, key on and under cranking. Referencing to chassis ground instead hides a bad sensor return path.

Documented repairs

MINI R56 Crankshaft Sensor: Scope Test Before You Replace It

2010 MINI Cooper S (R56, N14 1.6L Turbo)

P0335

How to test an R56 MINI Cooper crankshaft position sensor with an oscilloscope - supply, ground, Hall switching and signal amplitude - before selling a sensor.

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Fault Codes

• Crankshaft Position Sensor Circuit

Engines

• N14 1.6L Turbo

Models

• R56 MINI Cooper S

Repairs by System

• Electrical
• Diagnosis
• No Start
• DME
• Engine Electrical

Symptoms

• Extended Crank
• No Start