P0197

I : DTC P0196, P0197, P0198. Oil Temperature Sensor.

I1 : CHECK THE OIL TEMPERATURE SENSOR SIGNAL WIRE FOR OPEN CIRCUIT
1. Turn the ignition switch to the OFF position.
2. Disconnect the oil temperature sensor electrical connector PI24.
3. Disconnect the PCM electrical connector PI01.
4. Measure the resistance between the oil temperature sensor electrical connector PI24, pin 1 (Y) and the PCM electrical connector PI01, pin 78 (Y).

Is the resistance less than 5 ohms?

Yes
Goto I2

No
Repair the circuit. For additional information, refer to the wiring diagrams. CLEAR the DTCs. TEST the system for normal operation.

I2 : CHECK THE OIL TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT
1. Measure the resistance between the oil temperature sensor electrical connector PI24, pin 2 (BG) and GROUND.

Is the resistance less than 5 ohms?

Yes
Goto I3

No
Repair the circuit. For additional information, refer to the wiring diagrams. CLEAR the DTCs. TEST the system for normal operation.

I3 : CHECK THE OIL TEMPERATURE SENSOR GROUND CIRCUIT FOR SHORT TO BATTERY
1. Connect PCM electrical connector, PI01
2. Turn the ignition switch to the RUN position.
3. Measure the voltage between the oil temperature sensor electrical connector PI24, pin 2 (BG) and GROUND.

Is a voltage present?

Yes
Repair the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTCs. TEST the system for normal operation.

No
Goto I4

I4 : CHECK THE OIL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between the oil temperature sensor electrical connector PI24, pin 1 (Y) and GROUND.

Is the resistance less than 10,000 ohms?

Yes
Repair the short to GROUND. For additional information, refer to the wiring diagrams. CLEAR the DTCs. TEST the system for normal operation.

No
Goto I5

I5 : CHECK THE OIL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO BATTERY POSITIVE
1. Connect PCM electrical connector, PI01
2. Turn the ignition switch to the ON position.
3. Measure the voltage between the oil temperature sensor electrical connector PI24, pin 1 (Y) and GROUND.

Is the voltage greater than 10 volts?

Yes
Repair the short to battery positive. For additional information, refer to the wiring diagrams. CLEAR the DTCs. TEST the system for normal operation.

No
Install a new oil temperature sensor. CLEAR DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new PCM.