[4th Gen : 01-07]: P0601 PCM Checksum error
#1
12-23-2021, 03:20 PM
P0601 PCM Checksum error
Replaced The PCM with a pre Flashed AutoZone unit.. The reason was the voltage regulator was only telling the alternator to kick out 11.5 volts.
When I installed it, I was still getting the battery light and 11.5V. Apparently the voltage regulator also fried the alternator. The battery was weak until I put in a new alternator. 14.0 volts. When when battery was recharged, the PCM P0601 and a P1495 code came up. I think because the battery was low at first it might have had some wrong codes. 5 days later still have same codes even after clearing them. The car runs fine except for the check engine light. This would not be a problem except I live in CA. So you can't even get it smogged here. Any ideas would help and greatly appreciated. Happy Holidays everyone.
When I installed it, I was still getting the battery light and 11.5V. Apparently the voltage regulator also fried the alternator. The battery was weak until I put in a new alternator. 14.0 volts. When when battery was recharged, the PCM P0601 and a P1495 code came up. I think because the battery was low at first it might have had some wrong codes. 5 days later still have same codes even after clearing them. The car runs fine except for the check engine light. This would not be a problem except I live in CA. So you can't even get it smogged here. Any ideas would help and greatly appreciated. Happy Holidays everyone.
Last edited by SeaWolf6391; 12-23-2021 at 03:22 PM. Reason: Misspelled
#2
12-24-2021, 12:45 AM
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#3
01-22-2022, 09:09 AM
