Sandvik Fault Code

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402-115 (Transmission)

Rough shifting; Transmission "hunting" between gears; "Service Trans" light.

System

Not specified

Symptom

Rough shifting; Transmission "hunting" between gears; "Service Trans" light.

Diagnosis & fix steps

Transmission Output Speed Sensor Signal Lost. LOGIC: The transmission controller sees engine RPM but 0 output speed while in gear. ACTION: 1. Inspect the sensor on the output shaft of the Dana/Spicer transmission. 2. Check for "magnetic fuzz" on the sensor tip. 3. Check for wire damage from falling rock/debris. FIX: Clean the sensor tip or replace the Output Speed Sensor.

Red Seal field insights

The sensor is magnetic and will pick up tiny metal shavings from normal gear wear. Often, just pulling the sensor and wiping it clean with a rag will get the machine back to work for the rest of the shift.

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

Book an uptime review

Read before you touch anything

  • This is general reference information, not a repair manual. It is for trained, qualified technicians.
  • Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
  • Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
  • You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
  • Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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