P2036: Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 2
The P2036 code indicates that the Engine Control Module (ECM) has detected a high voltage signal from the exhaust gas temperature (EGT) sensor located on Bank 2, Sensor 2 (downstream of the diesel particulate filter or catalytic converter). This sensor monitors exhaust temperature to protect components and optimize emissions. A high circuit condition typically means the sensor's resistance is too high, often due to a faulty sensor, wiring issues, or a short to voltage. This can lead to incorrect temperature readings, potentially causing regeneration issues in diesel engines or triggering limp mode.
01. Most Common Causes
- Faulty exhaust gas temperature sensor
- Open or shorted wiring in the sensor circuit
- Corroded or damaged connector
- ECM software or hardware issue (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced fuel economy
- Possible limp mode or reduced engine power
- Failed emissions test
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm P2036 and check for other codes.
Step 2: Visually inspect the EGT sensor and wiring for damage, corrosion, or loose connections.
Step 3: Measure sensor resistance with a multimeter; compare to manufacturer specs (typically 100-200 kΩ at room temperature).
Step 4: Check for short to voltage or ground in the wiring harness.
Step 5: If sensor and wiring are OK, test the ECM output or consult a professional for further diagnosis.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances, as incorrect temperature readings can cause regeneration issues in diesel engines or lead to catalytic converter damage. Limp mode may also reduce power.
How much does it cost to fix?▼
The cost typically ranges from $150 to $300, including parts (sensor $50-$150) and labor (1-2 hours at $100-$150 per hour).