Detroit Diesel
DDEC flash code
Detroit Flash Code 64: Turbo Speed Sensor Input Failure - Abnormal Period
64 on Detroit Diesel engines means: Turbo Speed Sensor Input Failure - Abnormal Period. The failure mode (FMI 8) is “abnormal frequency, pulse width or period”.
Code details
- Manufacturer
- Detroit Diesel
- Applies to
- Detroit Diesel Series 60 EGR (DDEC IV)
- Fault code
- 64
- FMI
- 8 — Abnormal frequency, pulse width or period
- J1587 PID / SID
- PID 103
What to do next
- Read active and inactive codes with the OEM service tool (Detroit Diesel Diagnostic Link) and note the occurrence count.
- FMI 8 tells the shop the type of failure to test for: abnormal frequency, pulse width or period.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Related fault codes
Source: Detroit Diesel Series 60 EGR Technician's Guide, DDEC IV EGR fault code table (Table 4-1). See also OBD-II codes.