What Does P2460 Mean?
The DPF pressure sensor B circuit voltage is reading lower than the minimum threshold. This indicates a short to ground, sensor internal fault, or wiring issue.
Common Causes
40%
Shorted wiring in sensor signal circuit
35%
Failed DPF pressure sensor B with internal short
15%
Corroded connector causing short circuit
7%
Damaged sensor from heat or contamination
3%
ECM internal sensor circuit fault
Diagnostic Steps
1
Step 1: Disconnect DPF pressure sensor B and measure signal wire voltage (should read 5V reference)
2
Step 2: Check signal wire for short to ground with sensor disconnected
3
Step 3: Inspect connector for moisture, corrosion, or damaged pins
4
Step 4: Measure sensor internal resistance according to specifications
5
Step 5: Verify 5V reference voltage and ground circuit quality at sensor connector
Estimated Repair Cost
$120 - $500
Parts + labor, varies by vehicle and location
The DPF pressure sensor B circuit voltage is reading lower than the minimum threshold. This indicates a short to ground, sensor internal fault, or wiring issue.
The most common cause of P2460 (Diesel Particulate Filter Pressure Sensor "B" Circuit Low) is: Shorted wiring in sensor signal circuit
Typical repair costs for P2460 range from $120 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is drivable but DPF monitoring is compromised. DPF may not regenerate properly, potentially leading to reduced performance and engine protection mode activation.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2460 to identify the root cause.
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Quick Info
Category
Powertrain
System
Diesel Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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