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OBD-II Diagnostic Trouble Code
P0864

TCM Communication Circuit Range/Performance

P
Powertrain
engine / trans
0
Generic
SAE standard
8
Transmission
64
TCM Communication Circuit Range/Performance
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Generic
System
Powertrain
Standard
ISO/SAE Controlled
Fault type
Range/Performance