OBD Guide

P2607

Intake Air Heater B Circuit Low

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
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Is On
  • Unstable engine operation at idle

Causes

  • Intake air heater B fault
  • Open or short circuit in the heater circuit
  • Poor contact in circuit connectors
  • Heater relay malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the continuity of the intake air heater B circuit
  2. Check heater resistance
  3. Inspect connectors and wiring for damage
  4. Check the operation of the heater relay
  5. If necessary, replace intake air heater B

Related codes

Error P2607 by Vehicle Brand