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Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination or a less than desired powertrain response when operating their vehicles in high ambient temperatures. Upon further investigation the technician may find one or more of the following DTCs have been set: P0335 - Crankshaft Position Sensor Circuit. P2610 - PCM Internal Engine Off Timer Performance. (Sales Code ERB). (LD, LX vehicles only). P0606 - Internal Control Processor.