What Does P1454 Mean?
The secondary air injection pump control circuit has detected an electrical fault in the series resistor control system. This system is used to control the pump that injects fresh air into the exhaust during cold starts to reduce emissions.
Common Causes
35%
Faulty secondary air injection pump relay or control module
30%
Damaged wiring harness or corroded connectors in SAI pump circuit
25%
Failed secondary air injection pump motor
10%
Blown fuse or poor ground connection in SAI circuit
Diagnostic Steps
1
Step 1: Check SAI pump fuse and inspect for blown or damaged fuses
2
Step 2: Test SAI pump relay operation and measure resistance through series resistor
3
Step 3: Inspect wiring harness and connectors for damage, corrosion, or loose connections
4
Step 4: Test SAI pump motor operation by applying direct power and checking current draw
5
Step 5: Verify ground circuit integrity and measure voltage at control module
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The secondary air injection pump control circuit has detected an electrical fault in the series resistor control system. This system is used to control the pump that injects fresh air into the exhaust during cold starts to reduce emissions.
The most common cause of P1454 (Secondary Air Injection Pump With Series Resistor Control Circuit Electrical) is: Faulty secondary air injection pump relay or control module
Typical repair costs for P1454 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive but may fail emissions testing. Cold start emissions will be higher than designed specifications.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1454 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Manufacturer
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