Operation CHARM
: Car repair manuals for everyone.
Home
>>
Mazda
>>
2008
>>
6 L4-2.3L
>>
Repair and Diagnosis
>>
A L L Diagnostic Trouble Codes ( DTC )
>>
Testing and Inspection
>>
U Code Charts
>>
U2023
U2023
U2023 - Abnormal message from PCM
Multiplex Communication System