DTC P0198-00: Engine Oil Temperature Sensor System: High Input (H3T)

Determination condition 

• The specified time has elapsed with the voltage of the engine oil temperature sensor exceeding the standard.

  Precondition 

• Battery voltage: 8-20 V
• Engine coolant temperature: 25 °C {77 °F} or more
• Elapsed time after engine start: 174 s
• The following DTC is not detected
  • ECT sensor No. 1: P0117:00 and P0118:00

• Not applicable

• Not applicable

1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
2. Perform the KOEO or KOER self test. (See DTC INSPECTION .)

• Proceed with the inspection/action in the order from Step 1 below.
• After part repair or replacement, perform the repeatability verification procedure and perform a DTC inspection. (See DTC INSPECTION )

• If the DTC inspection indicates the same DTC again, go to the next step.

1. Inspect the wiring harness (including connector/terminal) between the engine oil temperature sensor/engine oil pressure sensor and the PCM.

   Purpose/reason (possible cause) 

   Malfunction in wiring harness (including connector/terminal) between engine oil temperature sensor/engine oil pressure sensor and PCM

   Referred to workshop manual item 

   (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .)

2. Inspect the engine oil temperature sensor.

   Purpose/reason (possible cause) 

   Engine oil temperature sensor malfunction

   Referred to workshop manual item 

   (See ENGINE OIL TEMPERATURE SENSOR INSPECTION .)

3. Replace the PCM.

   Purpose/reason (possible cause) 

   PCM malfunction (no other possible malfunction considered)

   Referred to workshop manual item 

   (See PCM REMOVAL/INSTALLATION )

• Not applicable