DTC P1678 Acura
A T (TCM) FPTDR Signal Line Circuit Malfunction
A T (TCM) FPTDR Signal Line Circuit Malfunction
Description
Key on or engine running; and the PCM detected an unexpected (intermittent) interruption of the TCM FPTDR Line signal in the test.
Cause and Solution
A T FTPDR data line is open (intermittent fault)
A T FTPDR data line is shorted to ground (intermittent fault)
A T FTPDR data line is shorted to VREF or power (intermittent)
Video Guide
Diagnostic Info
- DTC Code: P1678
- Brand: Acura