Cummins

2112

UnclassifiedGeneral

What This Code Means

Coolant temperature sensor voltage is out of range

Possible Causes

  • •Faulty Coolant Temperature Sensor
  • •Faulty Coolant Temperature Sensor Connections

Suggested Actions

  1. 1Check the resistance of the coolant temperature sensor
  2. 2Disconnect engine harness connector from coolant temperature sensor and inspect pins for corrosion, bent or broken pins, pushed back or expanded pins, moisture, missing or damaged seals, dirt, or debris

Related Cummins Fault Codes

233523361994234219152358185525441853262118472624
Browse all Cummins fault codes

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for 2112 on your specific Cummins unit — cited to the OEM manual, not a forum guess.

GET THE ANSWER

Free account required — we'll bring your question with you.