LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Mazda
>>
2003
>>
6 i, Automatic
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls [Self-Diagnostics 2.3L]
>>
Diagnostic Tests
>>
DTC P0601: Internal Control Module Memory Check Sum Error
>>
Possible Causes
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Possible Causes
Possible causes are:
PCM internal ROM malfunction.
Reprogramming has not been completed properly.