DTC B2532 Hummer
Humidity Sensor Circuit High
Humidity Sensor Circuit High
Description
The Humidity Sensor is internal to the Mass Airflow Sensor (MAF). The internal Humidity Sensor reading gives the PCM an indication of the current presence of water in the air during driving conditions. The PCM uses this information to help calculate fuel delivery. The PCM receives a Humidity reading from the MAF Sensor with the ignition on, before the engine is cranking or running. This Humidity reading from the MAF Sensor is used by the PCM, along with other inputs to calculate fuel delivery, and timing needs.
Cause and Solution
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGEHUMIDITY SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGEHUMIDITY SENSOR SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUITMASS AIR FLOW SENSORPOWERTRAIN CONTROL MODULE (PCM)
Video Guide
Diagnostic Info
- DTC Code: B2532
- Brand: Hummer