Secondary Air Injection Monitor Circuit High Voltage
Findings, check these first
- Shorted monitor signal wire
- Failed monitor sensor stuck high
- Poor monitor ground
- Backfed voltage from a shared circuit
- PCM fault
Standard procedure
- Inspect monitor wiring for shorts to power
- Verify the sensor ground
- Test sensor output with the pump commanded
- Check shared circuits for backfeed
- Replace the sensor if the circuit is sound
Code lookup
Type a code above, or start from a symptom or a common code.
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Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1414 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1414: SAI System Monitor Circuit High Input
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1414 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1414: Secondary Air Injection System Monitor Circuit High Voltage
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-06.
Report a correction for P1414. Include your vehicle, the issue and a source if you have one.