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DTC Troubleshooting: P250B

DTC P250B:
 Engine Oil Level Sensor Range/Performance Problem
NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  • When you check this DTC troubleshooting, carry out in a flat place.
  • Check the engine oil level and condition, before checking this DTC troubleshooting.
  1. Start the engine. Hold the engine speed at 3,000 rpm (min −1 ) without load (in neutral) until the radiator fan comes on, then let it idle.
  1. Check the ENGINE OIL TEMPERATURE in the DATA LIST with the HDS.
Is 50 °C (122 °F) or more indicated?
YES -
Go to Step 3 .
NO -
Keep idling until the value of ENGINE OIL TEMPERATURE becomes 50 °C (122 °F) or more, then go to Step 3 .
  1. Check the ENGINE OIL LEVEL MONITOR CONDITION in the DATA LIST with the HDS.
Is it OK?
YES -
Go to Step 4 .
NO -
Keep idling until the screen indicates ‘‘OK'', then go to Step 4 .
  1. Maintain idling for 2 minutes.
  1. Note the value of ENGINE OIL LEVEL in the DATA LIST with the HDS.
  1. Stop the engine, but stop the ignition switch with ON (II) position.
  1. Wait 5 minutes.
  1. Check the ENGINE OIL LEVEL in the DATA LIST with the HDS.
  1. Compare the value of ENGINE OIL LEVEL and the recorded value of ENGINE OIL LEVEL.
Does the value of ENGINE OIL LEVEL differ 2 mm (0.08 in.) or more?
YES -
Intermittent failure, the system is OK at this time. Check the engine oil level and condition.■
NO -
Go to Step 10 .
  1. Turn the ignition switch to ON (II).
  1. Reset the ECM with the HDS.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P250B indicated?
YES -
Check for poor connections or loose terminals at the engine oil level sensor and the ECM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■