Error code

OBD2 P0195

OBD2P0195
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Engine Oil Temperature Sensor.

Severity

moderateCan drive, but monitor symptoms and address promptly.

Summary

P0195 indicates an issue with the Engine Oil Temperature Sensor circuit in your vehicle's engine bank.

Symptoms

  • Malfunction Indicator Light (MIL) illuminated
  • Engine overheating
  • Low oil level or sludge

Common Causes

  • Faulty EOT sensor
  • Wiring issues in the EOT circuit
  • Poor electrical connections at connectors

Diagnosis

  1. Check for bent or broken pins in the EOT sensor connector.
  2. Verify proper operation of the thermostat to ensure engine heats up correctly.
  3. Perform OBD checks by disconnecting/reconnecting the EOT sensor to induce specific DTCs.
  4. Conduct circuit tests with KOEO (key ON, engine OFF) for 5V reference voltage and output.

Fixes

  • Replace faulty EOT sensor

FAQ

What does P0195 mean?

P0195 indicates a malfunction in the Engine Oil Temperature Sensor circuit.

How do I diagnose P0195?

Diagnose by checking electrical connections, performing OBD checks, and conducting circuit tests for voltage readings.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

More OBD2 codes

All OBD2 codes →Search more codes →