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Home >> Mitsubishi >> 2003 >> 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 it.
  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 this malfunction is intermittent, see INTERMITTENT DIAGNOSTIC TROUBLE CODES  . If the sensor is malfunctioning, go to the next step.
  2. Disconnect the fuel temperature sensor connector D-17. Measure the resistance between terminals No. 1 and 3 of the fuel temperature sensor. Standard value: 500-12,000 ohm. If the resistance is at the standard value, go to the next step. If the resistance is abnormal, replace the fuel temperature sensor and proceed 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. If the connector is in good condition, go to the next step. If the connector is damaged, repair or replace it and proceed to step  5 .
    4. NOTE: Check harness after checking intermediate connector C-90 and C-28. If intermediate connector is damaged, repair or replace it.
  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). If the harness wire is in good condition, replace the ECM or PCM. If the harness wire is damaged, repair it. Go to the next step.
  5. Carry out a test drive with the drive cycle pattern, refer to OTHER MONITOR  . 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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