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* B, B2 --- NTC 1  
* B, B2 --- NTC 1  
* A --- NTC2,  ground to housing
* A --- NTC2,  ground through housing


=== Calibration ===
=== Calibration ===

Latest revision as of 21:03, 5 June 2026

NTC coolant temperature sensors

Magneti Marelli

Magneti Marelli temperature sensor. It features M12x1.5mm threads (requires an adapter for common 1/8" NPT ports) and a 3-pin connector. The sensor provides analog outputs for temperature (resistance-based NTC). The sensor has two NTC transistors, out of which one is two pin and the other is single pin (grounded through the housing).

Part numbers

  • 402 114 02 (Magneti Marelli)
  • 727012 (NRF)

Aplications

  • Renaults with aluminum thermostat housing (F4P, F4R engine code) and many more.
  • LADA Largus Estate (KS0_, RS0_, KSA_) (Year of Construction 03.2012 - ...)
  • Opel vivaro around 2000 year models.
402 114 02

Connector

  • Part no. 210PC03250016

Pinout

  • B, B2 --- NTC 1
  • A --- NTC2, ground through housing

Calibration

For the NTC 1

  • 0℃ ------ 6600 Ω
  • 80℃ ---- 290 Ω
  • 98℃ ---- 162 Ω
PINOUT