What Does P247D Mean?
The exhaust gas temperature at Bank 2, Sensor 2 (post-catalyst or pre-DPF on Bank 2) is out of range. This sensor monitors catalyst efficiency and DPF conditions for the second cylinder bank.
Common Causes
37%
Defective EGT sensor at Bank 2 Sensor 2 position
27%
Bank 2 catalyst or DPF failure or degradation
18%
Exhaust leak between Bank 2 sensors 1 and 2
11%
Uneven DPF loading or regeneration issues
7%
Sensor wiring damage or connector corrosion
Diagnostic Steps
1
Step 1: Compare Bank 2 Sensor 2 with Sensor 1 to evaluate catalyst temperature efficiency
2
Step 2: Cross-reference Bank 2 temperatures with Bank 1 equivalent sensors for system balance
3
Step 3: Inspect exhaust system on Bank 2 for leaks between sensor locations
4
Step 4: Test sensor electrical properties and validate readings with infrared thermometer
5
Step 5: Assess catalyst efficiency using temperature differential and O2 sensor data
Estimated Repair Cost
$200 - $1,400
Parts + labor, varies by vehicle and location
The exhaust gas temperature at Bank 2, Sensor 2 (post-catalyst or pre-DPF on Bank 2) is out of range. This sensor monitors catalyst efficiency and DPF conditions for the second cylinder bank.
The most common cause of P247D (Exhaust Gas Temperature Out of Range Bank 2 Sensor 2) is: Defective EGT sensor at Bank 2 Sensor 2 position
Typical repair costs for P247D range from $200 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe for short-term operation but requires attention. Catalyst or DPF failure can lead to reduced performance and expensive component damage if neglected.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P247D to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
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