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2014 JEEP CHEROKEE

3.2L V6•AWD•AUTOMATIC•gas
13 active safety recalls on this vehicle — view recalls
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Repairs0Labor1128Torque7467Fluid15DTC1816Battery0Maintenance0Recalls13
P0138moderate severityPowertrain

O2 Sensor Circuit High Voltage Bank 1 Sensor 2

on 2014 Jeep Cherokee 3.2L V6 · AWD

What this code means

The downstream O2 sensor on Bank 1 is reading high voltage consistently.

Symptoms

  • Check Engine Light
  • Failed emissions
  • May indicate catalyst failure

Common causes

  • Faulty sensor
  • Catalytic converter failure
  • Rich running condition

Diagnostic steps

  1. Test sensor voltage
  2. Check catalyst efficiency
  3. Monitor upstream vs downstream O2 patterns

Repair notes

Replace sensor. If catalyst failed, replace catalytic converter.

Other Powertrain codes on this vehicle

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