OBD-II code · Powertrain (generic, extended)
P2437 AIR System Air Flow or Pressure Sensor Circuit Low Bank 2
AIR System Air Flow or Pressure Sensor Circuit Low Bank 2: the signal voltage is below the expected range. Often a short to ground or high resistance in the wiring.
Is it safe to drive with P2437?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–2 h
- Emissions test
- Likely to fail
- Parts involved
- Air System Flow Sensor B2
Related codes
- P2434AIR System Air Flow or Pressure Sensor Circuit Intermittent or Erratic Bank 1
- P2435AIR System Air Flow or Pressure Sensor Circuit Bank 2
- P2436AIR System Air Flow or Pressure Sensor Circuit Range or Performance Bank 2
- P2438AIR System Air Flow or Pressure Sensor Circuit High Bank 2
- P2439AIR System Air Flow or Pressure Sensor Circuit Intermittent or Erratic Bank 2
- P243AParticulate Filter Restriction Ash Accumulation Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.