Live Manual
Engine Error

P0419

Secondary Air Injection System Control B Circuit

Severity
Low

Symptoms

Check engine light on, failed smog inspection

Common Causes

  • Failed secondary air injection pump relay B
  • Faulty secondary air pump B (if equipped)
  • Damaged wiring to pump B
  • Corroded relay socket

How to Fix

  1. 1 Replace relay B
  2. 2 Replace secondary air pump B
  3. 3 Fix damaged wiring
  4. 4 Clean relay socket and terminals
Estimated Repair Cost USD
$20 $400

Relay: $20; Air pump: $150 - $400