Possible causes
– Air pump fuse
– Vacuum hose
– Air pump assembly
– Faulty Pressure Sensor
– Air pump harness is open or shorted
– Air pump circuit poor electrical connection
– Pressure Sensor harness is open or shorted
– Pressure Sensor circuit poor electrical connection
– Vacuum hose
– Air pump assembly
– Faulty Pressure Sensor
– Air pump harness is open or shorted
– Air pump circuit poor electrical connection
– Pressure Sensor harness is open or shorted
– Pressure Sensor circuit poor electrical connection
Tech description
There is a factory service bulletin for the following Toyota models:
2005-2007 Toyota Sequoia
2005