Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 2 Low (Generic)
The P4013 code means the vehicle's onboard diagnostic system has detected: Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 2 Low (Generic). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $120 - $450 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Post-DPF temperature reading too low on bank 2
- DPF regen verification failure
- Increased idle roughness
Probable Causes (Ranked by Likelihood)
- Short to ground in bank 2 sensor 2 circuit Very High
- Sensor reading low due to internal failure High
- Water intrusion in connector at DPF outlet Moderate
- Ground wire fault in harness Low
Step-by-Step Diagnostic Procedure
-
Measure sensor 2 bank 2 resistance at ambient temperature
-
Check for shorts to ground in signal wire
-
Inspect connector for moisture and corrosion
-
Compare reading to bank 1 sensor 2 for reference
Frequently Asked Questions
Can I clear P4013 and see if it comes back?
You can clear the code, but if the sensor or wiring is faulty, it will return. It is better to diagnose the root cause first.
Is P4013 related to poor fuel quality?
No, P4013 is an electrical circuit fault in the temperature sensor circuit, not related to fuel quality.
Can I drive with P4013?
You can drive short distances but DPF regeneration verification will not work properly. Schedule a repair within a few days.
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