What Does P2475 Mean?
The exhaust gas temperature sensor 4 on bank 2 is reporting a voltage signal lower than the minimum threshold expected by the PCM. This indicates a short to ground in the circuit or a sensor reading artificially low temperatures.
Common Causes
35%
Shorted EGT sensor 4 internal element on bank 2
30%
Wiring harness short to ground or damaged wire insulation
20%
Corroded or damaged connector creating short circuit path
10%
PCM internal fault in bank 2 EGT sensor 4 circuit
5%
Moisture or contamination in connector causing intermittent short
Diagnostic Steps
1
Step 1: Inspect bank 2 EGT sensor 4 wiring for damage, melted insulation, or contact with exhaust components
2
Step 2: Disconnect sensor and measure resistance; should show proper resistance per manufacturer specifications
3
Step 3: Test for short to ground by measuring resistance between signal wire and ground with sensor disconnected
4
Step 4: Verify 5V reference voltage at sensor connector with ignition on
5
Step 5: Replace sensor if circuit tests normal but sensor shows internal short; test PCM if all else checks out
Estimated Repair Cost
$150 - $450
Parts + labor, varies by vehicle and location
The exhaust gas temperature sensor 4 on bank 2 is reporting a voltage signal lower than the minimum threshold expected by the PCM. This indicates a short to ground in the circuit or a sensor reading artificially low temperatures.
The most common cause of P2475 (Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 4) is: Shorted EGT sensor 4 internal element on bank 2
Typical repair costs for P2475 range from $150 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive but may experience power reduction. DPF regeneration on bank 2 will be compromised, potentially causing filter clogging and reduced performance.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2475 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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