DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0197

EOT SEN/CIRC

(Engine oil temperature sensor circuit low)

An excessively low voltage from the engine oil temperature sensor is sent to ECM.

• Harness or connectors

  (EOT sensor circuit is open or shorted.)

• Engine oil temperature sensor

P0198

EOT SEN/CIRC

(Engine oil temperature sensor circuit high)

An excessively high voltage from the engine oil temperature sensor is sent to ECM.