P0371moderate severityPowertrain
Timing Reference High Resolution Signal A Too Many Pulses
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
The PCM received more high resolution timing pulses than expected on signal A. This often indicates electrical noise or a damaged tone ring.
Symptoms
- Check engine light on
- Rough running
- Timing-related performance issues
Common causes
- Damaged reluctor/tone ring
- Electrical interference or noise
- Faulty timing sensor
- Wiring fault
Diagnostic steps
- Scan for codes and freeze frame
- Inspect tone ring for damage or debris
- Check wiring for noise sources
- Test and replace sensor if needed
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1