[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. P2253 OXYGEN SENSOR OFFSET CIRCUIT HIGH VOLTAGE
Code No. P2253: Oxygen Sensor Offset Circuit High Voltage
 
 
 
 
OPERATION
  • Check code No. P0137: oxygen sensor (rear) circuit low voltage (Refer to ).
 
 
FUNCTION
  • The engine-ECU watches and checks whether the offset voltage of the oxygen sensor is normal or not.
 
 
TROUBLE JUDGEMENT
Check Condition
  • More than 2 seconds have passed since the engine starting sequence was completed.
Judgement Criterion
  • Oxygen sensor offset voltage is more than 0.6 V for 2 seconds.
FAIL-SAFE AND BACKUP FUNCTION
  • Does not control air-fuel ratio closed loop.
 
 
PROBABLE CAUSES
  • Failed oxygen sensor (rear)
  • Short circuit in oxygen sensor (rear) circuit or loose connector contact
  • Failed engine-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. Check oxygen sensor (rear) itself.
  • Oxygen sensor check (Refer to ).
Is the check result normal?
Go to Step 2.
Replace the oxygen sensor (rear).
 
STEP 2. Check of short to power supply in ORLE line between oxygen sensor (rear) connector and engine-ECU connector.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 3. Check of short to power supply in O2RL line between oxygen sensor (rear) connector and engine-ECU connector.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. M.U.T.-IIISE diagnosis code
  • Reconfirmation of diagnosis code.
Is the diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).