Secondary Air Injection System Control Circuit High
The P2260 code indicates that the powertrain control module (PCM) has detected a high voltage condition in the secondary air injection (SAI) system control circuit. The SAI system pumps fresh air into the exhaust to reduce emissions during cold starts. A high circuit voltage typically points to a short to power, a faulty relay, or a malfunctioning SAI pump. This can prevent the system from operating correctly, leading to increased emissions and potential drivability issues.
01. Most Common Causes
- Faulty secondary air injection pump relay
- Short to power in the SAI control circuit
- Defective PCM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Failed emissions test
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm P2260 and check for related codes.
Step 2: Inspect the SAI pump relay and wiring for shorts or damage.
Step 3: Test the SAI pump relay and circuit voltage with a multimeter.
Step 4: If relay and wiring are okay, test the SAI pump itself.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
Yes, but the vehicle may fail an emissions test and the Check Engine Light will stay on. It's best to repair it soon to avoid potential drivability issues.
How much does it cost to fix?▼
Typically $50-$150 for parts and labor, depending on the cause. A relay replacement is cheaper, while a pump replacement can be more.