Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)
The P2036 code means the vehicle's onboard diagnostic system has detected: Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2). This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $150 - $400 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Engine power derate or protection mode
- False high exhaust temperature warnings
- DPF regeneration may not complete
- Reduced turbo performance
Probable Causes (Ranked by Likelihood)
- Short to voltage in Sensor 2 EGT wiring Very High
- Failed EGT sensor reporting high High
- Open ground wire Moderate
- Wiring melted or fused from exhaust heat Moderate
- PCM driver fault Low
Step-by-Step Diagnostic Procedure
-
Read freeze frame data noting temperature values
-
Check Sensor 2 wiring for heat damage, especially near exhaust manifold
-
Measure voltage and ground at sensor connector
-
Use infrared thermometer to verify actual exhaust temperature vs. sensor reading
Frequently Asked Questions
What does P2036 mean?
P2036 means the Bank 1 Sensor 2 exhaust gas temperature sensor is reading above the maximum expected value, often causing false overtemperature warnings and power reduction.
Can I drive with a P2036 code?
Drive only short distances. The false high reading may trigger unnecessary power reduction modes.
How much does it cost to fix P2036?
Expect $150 to $400 for sensor replacement and potential wiring repair.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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