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P1540 Diagnostic Trouble Code Discussion for May 2010

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Trouble Ticket Help Requests for DTC P1540
Help Request Posted
2001 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH66501
P1540: Manufacture controlled. Car was originally brought in with a over charging condition that was over 15 Volts (Bosch alternator). The alternator was getting very Hot. I changed the alternator with a aftermarket one and then the car was charging 13.2V. I then replaced the battery. It br...
May 10, 2010