P3062moderate severityPowertrain
Shift Quality - Harsh Downshift Detected
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
The TCM detected excessively harsh downshifts. The transition between gears during deceleration is abrupt.
Symptoms
- Check Engine Light
- Harsh downshifts
- Vehicle lurches on deceleration
- Engine braking feels excessive
- Driveline shudder on downshift
- Abrupt speed change during coast-down
Common causes
- Faulty shift timing solenoid
- Torque converter clutch not releasing
- Pressure control solenoid malfunction
- Valve body wear
- Incorrect TCM calibration
Diagnostic steps
- Monitor shift quality PIDs during deceleration
- Check TCC release timing
- Test pressure control solenoid
- Inspect shift solenoid operation
- Review TCM software version
Repair notes
Replace pressure control solenoid or valve body. TCM reflash may be available from manufacturer.
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P0015
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