October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Diagnostic Aids

When replacing IAT sensor, refer to TEMPERATURE TO RESISTANCE VALUES table. A "shifted" sensor could result in poor driveability complaints.

Fig 1: Code 23 Schematic Intake Air Temperature Sensor CKT, Low Temperature Indicated

Fig 2: Code 23 Flow Chart Intake Air Temperature Sensor CKT, Low Temperature Indicated