What Does P2447 Mean?
The PCM has detected that the secondary air injection pump on Bank 2 is not activating when commanded. This prevents proper emissions control during engine warm-up cycles.
Common Causes
35%
Failed secondary air injection pump motor
30%
Blown fuse or faulty relay
20%
Open circuit in wiring harness or corroded connector
10%
Seized pump due to moisture or debris
5%
Failed PCM driver circuit
Diagnostic Steps
1
Step 1: Check secondary air injection fuse and relay condition
2
Step 2: Command pump operation with scan tool and listen for pump activation
3
Step 3: Test for voltage at pump connector during commanded operation
4
Step 4: Verify ground circuit integrity at pump connector
5
Step 5: Test pump by applying direct battery voltage if circuits are intact
Estimated Repair Cost
$200 - $900
Parts + labor, varies by vehicle and location
The PCM has detected that the secondary air injection pump on Bank 2 is not activating when commanded. This prevents proper emissions control during engine warm-up cycles.
The most common cause of P2447 (Secondary Air Injection System Pump Stuck Off Bank 2) is: Failed secondary air injection pump motor
Typical repair costs for P2447 range from $200 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive but emissions will be elevated during cold starts, potentially leading to catalytic converter damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2447 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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