OBD Guide
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P1452

Secondary Air Injection System Circuit Open

P1452 is an OBD-II diagnostic trouble code meaning: Secondary Air Injection System Circuit Open. Common causes: open or short circuit in wiring, secondary air pump relay malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Loss of engine power
  • Unstable idling
  • Increased fuel consumption
  • Increased emissions

Causes

  • Open or short circuit in wiring
  • Secondary air pump relay malfunction
  • Blown fuse
  • Defect of the secondary air pump itself
  • Problems with connecting connectors

How to Fix

  1. Check the integrity of the system fuse
  2. Inspect the wiring for damage
  3. Check the operation of the secondary air pump relay
  4. Test the system pump itself
  5. Diagnose the engine control unit for errors

Related codes

P0410P0411P0418

Error P1452 by Vehicle Brand

BMWFordLincolnMercuryVolkswagen

FAQ

What does the P1452 code mean?

P1452 is an OBD-II diagnostic trouble code that indicates: Secondary Air Injection System Circuit Open

What causes a P1452 error code?

The most common causes of P1452 include: Open or short circuit in wiring; Secondary air pump relay malfunction; Blown fuse; Defect of the secondary air pump itself.

How do I fix a P1452 diagnostic trouble code?

To fix P1452: Check the integrity of the system fuse. Inspect the wiring for damage. Check the operation of the secondary air pump relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1452?

Yes, but get it checked soon

How much does it cost to fix P1452?

The estimated repair cost for P1452 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat