Diagnostic Trouble Code (DTC) Information

Condition:
Engine speed (RPM) signal missing for at least 10 seconds while the generator (GEN) transmits charging signal (D+).

Possible Source:
- Short-circuit to battery voltage in signal cable.
- Short-circuit to ground in signal cable.
- Open-circuit in signal cable.
- Open-circuit in signal cable D+ from generator (GEN).
- Contact resistance too large.
- Fault in ignition/fuel injection system.

Fault Symptom(s):
Tachometer not working.

Start fault-tracing with HB. "Signal Missing". Signal Missing