OBD-II code · Powertrain (generic, extended)
P2607 Intake Air Heater B Circuit Low
Voltage on the secondary intake air heater control line is below the expected window. Usually a short to ground or a shorted relay coil.
Is it safe to drive with P2607?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in relay coil
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.8–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Intake Air Heater B, Heater Relay, Wiring Harness
Related codes
- P0541Intake Air Heater A Circuit Low
- P2CE3Intake Air Heater C Circuit Low
- P2604Coolant Pump Control Circuit High
- P2605Intake Air Heater B Circuit / Open
- P2606Intake Air Heater B Circuit Range/Performance
- P2608Intake Air Heater B Circuit High
- P2609Intake Air Heater System Performance
- P260APTO Control Circuit / Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.