What Does P2425 Mean?
The powertrain control module has detected an open circuit or communication failure in the EGR cooling valve control circuit. The EGR cooler valve regulates coolant flow through the EGR cooler to maintain proper exhaust gas temperature.
Common Causes
35%
Broken or disconnected wiring to EGR cooling valve
30%
Failed EGR cooling valve solenoid
20%
Corroded or loose electrical connector
10%
PCM internal driver circuit failure
5%
Blown fuse or faulty relay in control circuit
Diagnostic Steps
1
Step 1: Visually inspect EGR cooling valve connector and wiring for damage or corrosion
2
Step 2: Check for battery voltage at the valve connector with ignition on
3
Step 3: Test EGR cooling valve resistance and compare to specifications
4
Step 4: Perform continuity test between PCM and valve connector
5
Step 5: Command valve operation with scan tool and monitor circuit response
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The powertrain control module has detected an open circuit or communication failure in the EGR cooling valve control circuit. The EGR cooler valve regulates coolant flow through the EGR cooler to maintain proper exhaust gas temperature.
The most common cause of P2425 (Exhaust Gas Recirculation Cooling Valve Control Circuit/Open) is: Broken or disconnected wiring to EGR cooling valve
Typical repair costs for P2425 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive short distances. Reduced EGR function may cause overheating, increased NOx emissions, and potential engine damage if driven extensively.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2425 to identify the root cause.
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Quick Info
Category
Powertrain
System
EGR System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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