Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Powertrain Management » Computers and Control Systems » Testing and Inspection » Pinpoint Tests » DA: Intake Air Temperature (IAT)/Engine Coolant Temperature (ECT)/EngineOil Temperature (EOT) Sensors - Introduction  
 
 
  DA: Intake Air Temperature (IAT)/Engine Coolant Temperature (ECT)/EngineOil Temperature (EOT) Sensors - Introduction  
 

DA: Intake Air Temperature (IAT)/Engine Coolant Temperature (ECT)/EngineOil Temperature (EOT) Sensors Introduction

DA: Pinpoint Tests See: DA: Intake Air Temperature (IAT)/Engine Coolant Temperature (ECT)/EngineOil Temperature (EOT) Sensors - Pinpoint Test

Note

This Pinpoint Test is intended to diagnose the following:

  • Intake air temperature (IAT) sensor (12A697)
  • Integrated intake air temperature (IAT) sensor (12B579)
  • Engine coolant temperature (ECT) sensor (12A648)
  • Engine oil temperature (EOT) sensor (12A648)
  • Harness circuits: IAT, ECT, EOT and SIG RTN
  • Powertrain control module (PCM) (12A650)

The term "applicable" is used in this pinpoint test and refers to the temperature sensor indicated by the DTC. Example: ECTV, IATV, EOTV.

Tables and Graphs

Note: Engine coolant temperature must be greater than 10°C (50°F) to pass the KOEO Self-Test and greater than 82°C (180°F) to pass the KOER Self-Test. To accomplish this, the engine must be at normal operating temperature.

Ambient temperature must be above 10°C (50°F) to receive acceptable input from the intake air temperature (IAT) sensor.

Engine oil temperature must be greater than 10°C (50°F) to pass the KOEO Self-Test and greater than 66°C (150°F) to pass the KOER Self-Test.
Voltage values were calculated for VREF = 5.0 volts. These values can vary 15 percent due to sensor and VREF variations.

  

TEMPERATURE SENSOR VOLTAGE AND RESISTANCE SPECIFICATIONS

  

Pinpoint Test Schematics and Connectors

  

LS6/LS8 (If equipped)

  

Focus, 2.0L Cougar

Note: On some applications the integrated IAT/MAF sensor connector is located inside the air cleaner assembly.

  

Escort 4V, Taurus/Sable, FF Taurus, 3.8L Mustang, Windstar, 2.3L/3.0L/4.0L Ranger, Escape, Explorer/Mountaineer, Explorer Sport/Sport Trac, Econoline, Excursion, 5.4L/6.8L F250/F350/F450

Note: On some applications the integrated IAT/MAF sensor connector is located inside the air cleaner assembly.

  

All Others