What Does P2260 Mean?
The PCM detects a high voltage condition on the Secondary Air Injection system control circuit B. Circuit voltage exceeds maximum specification, indicating an open circuit or insufficient current draw.
Common Causes
30%
Open circuit in AIR solenoid valve B wiring harness
25%
Failed secondary air bypass/switching valve B with open coil
20%
Loose, corroded, or disconnected AIR valve B connector
15%
Blown fuse or failed relay in AIR circuit B
10%
Broken wire from physical damage or heat exposure
Diagnostic Steps
1
Step 1: Check fuses and relays associated with AIR system circuit B
2
Step 2: Verify continuity in control circuit from PCM to AIR valve B
3
Step 3: Inspect AIR valve B connector for proper seating, terminal damage, or corrosion
4
Step 4: Measure voltage at AIR valve B connector when commanded on by scan tool
5
Step 5: Replace AIR valve B if wiring, fuses, and relays all test within specification
Estimated Repair Cost
$150 - $550
Parts + labor, varies by vehicle and location
The PCM detects a high voltage condition on the Secondary Air Injection system control circuit B. Circuit voltage exceeds maximum specification, indicating an open circuit or insufficient current draw.
The most common cause of P2260 (Secondary Air Injection System Control "B" Circuit High) is: Open circuit in AIR solenoid valve B wiring harness
Typical repair costs for P2260 range from $150 to $550, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No safety risk to vehicle operation. AIR system malfunction only affects emissions compliance during cold start conditions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2260 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
