OBD Guide

P2606

Intake Air Heater B Circuit Range/Performance

P2606 is an OBD-II diagnostic trouble code meaning: Intake Air Heater B Circuit Range/Performance. Common causes: intake air heater b fault, open or short circuit in the heater circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Difficulty starting the engine in cold weather
  • Unstable engine operation at idle
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Intake air heater B fault
  • Open or short circuit in the heater circuit
  • Problems with the heater relay or fuse
  • ECU malfunction

How to Fix

  1. Check fuse and heater relay
  2. Check the integrity of the heater circuit
  3. Check heater resistance
  4. Check the operation of the computer
  5. Replace the intake air heater if necessary

Related codes

Error P2606 by Vehicle Brand

FAQ

What does the P2606 code mean?

P2606 is an OBD-II diagnostic trouble code that indicates: Intake Air Heater B Circuit Range/Performance

What causes a P2606 error code?

The most common causes of P2606 include: Intake air heater B fault; Open or short circuit in the heater circuit; Problems with the heater relay or fuse; ECU malfunction.

How do I fix a P2606 diagnostic trouble code?

To fix P2606: Check fuse and heater relay. Check the integrity of the heater circuit. Check heater resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2606?

Yes, but get it checked soon

How much does it cost to fix P2606?

The estimated repair cost for P2606 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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