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Home >> Mitsubishi >> 2002 >> Eclipse RS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self Diagnostics - 2.4L >> Diagnostic Tests >> DTC P0182: Fuel Temperature Sensor Circuit Low Input >> Diagnostic Procedure
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Diagnostic Procedure

CAUTION: To prevent damage to Scan Tool (MB991502), always turn the ignition off before connecting or disconnecting the scan tool.
  1. Connect Scan Tool (MB991502) to the data link connector. Turn the ignition on. Set the scan tool to data reading mode for item 4A, Fuel Temperature Sensor. Approximately the same as the outside temperature when the engine is cooled. Turn the ignition off. If the sensor is operating properly, it can be assumed that the malfunction is intermittent, refer to INTERMITTENT DIAGNOSTIC TROUBLE CODES . If the sensor is malfunctioning, go to next step.
  2. Disconnect the fuel temperature sensor connector D-17. See Figure. Measure the resistance between terminal 1 and 3 of the fuel temperature sensor. If the resistance is at the standard value, go to next step. If the resistance is off, replace the fuel temperature sensor and go to step  5.
  3. Check connector D-17 at the fuel temperature sensor and connector C-60 at ECM (M/T) or connector C-54 at PCM (A/T) for damage. See Figure, Figure or Figure . If the connector is in good condition, go to next step. If the connector is damaged, repair or replace it and go to step  5.
  4. Check for short circuit to ground between fuel temperature sensor connector D-17 and ECM connector C-60 (M/T) or PCM connector C-54 (A/T). See Figure, Figure or Figure . Check harness after checking intermediate connector C-90 and C-28. See Figure. If intermediate connector is damaged, repair or replace it and go to next step. If the harness wire is in good condition, replace the ECM or PCM and go to next step. If the harness wire is damaged, repair it and go to next step.
  5. Carry out a test drive with the drive cycle pattern (OBD-II). Check the diagnostic trouble codes. If DTC P0182 is output, retry the troubleshooting. If the DTC is absent, the inspection is complete.
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