3155-Monitoring Air Intake Value Too Low: Notes
For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .
- When Monitored:
With the ignition on.
- Set Condition:
The Intake Air Temperature Sensor Signal circuit voltage is below 0.12 volt for 2.0 seconds.
| Possible Causes |
|---|
| INTERMITTENT DTC |
| INTAKE AIR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| INTAKE AIR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO INTAKE AIR TEMPERATURE SENSOR GROUND |
| INTAKE AIR TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| INTAKE AIR TEMPERATURE SENSOR |
| ENGINE CONTROL MODULE (ECM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure