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The P1339 trouble code in the MINI Cooper points to an issue with the crankshaft position. The OBD-II code is defined as "Crankshaft Position/Engine Speed Sensor Cross Connected." Possible reasons for this error include a faulty camshaft position sensor, a damaged or shorted wiring harness, or a problematic electrical connection within the system. You might encounter other related codes like P1318, P0365, P0340, and P0335, which deal with spark plug voltage, camshaft position sensor B, camshaft position sensor A, and crankshaft position sensor A. The last three codes all indicate a malfunction in the circuit. Beyond sensor and wiring issues, your problem could be caused by a damaged signal plate, a faulty starter motor, problems with the starting system circuit, or a weak battery.
The diagnostic trouble code P1339 on a MINI Cooper indicates a problem with the Crankshaft Position/Engine Speed Sensor being wrongly connected.