Humidity Sensor Circuit/Open

Common symptoms

What you'll notice

• Check the humidity sensor wiring for any loose or damaged connections.
• Inspect the humidity sensor for any signs of damage or corrosion.
• Replace the humidity sensor if it is determined to be faulty or non
• functional.
• Clear the error code from the OBD 2 system and retest to ensure the issue has been resolved.
• Consult the vehicle or motorcycle manufacturer's service manual for further diagnostic steps if the problem persists.

Common causes

Most likely first

1. Faulty humidity sensor
2. Damaged or disconnected wiring in the humidity sensor circuit
3. Corrosion or moisture in the humidity sensor connector
4. Malfunctioning climate control system
5. Faulty powertrain control module (PCM)

How to diagnose & fix

Work through it in order

1. Malfunction indicator lamp (MIL) illuminates on the dashboard
2. Engine misfires or runs rough
3. Decreased fuel efficiency
4. Stalling or hesitation during acceleration
5. Difficulty starting the vehicle