| DTC P0197-00: |
Engine oil temperature sensor circuit low input |
| DETECTION CONDITION |
- The PCM monitors the input signal from the engine oil temperature sensor. If the voltage from the engine oil temperature sensor is below 0.1 V
for 4 s
, the PCM determines that the engine oil temperature sensor circuit has a malfunction.
MONITORING CONDITIONS
- Battery voltage: 8-20 V
- 0.5 s
have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light does not illuminate.
- FREEZE FRAME DATA is not available.
- Snapshot data is available.
- DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
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| POSSIBLE CAUSE |
- Engine oil pressure sensor/engine oil temperature sensor connector or terminals malfunction
- Engine oil temperature sensor malfunction
- Short to ground in wiring harness between engine oil pressure sensor/engine oil temperature sensor terminal E and PCM terminal 1AU
- PCM connector or terminals malfunction
- Engine oil temperature sensor signal circuit and ground circuit are shorted to each other
- PCM malfunction
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