Control Module Internal Temperature Sensor A Range/Performance

Where it lives

For P0667, start at the sensor the description names.

Check these first

• An internal temperature sensor reading out of range
• A drifting internal temperature sensor
• A module running hot from a nearby heat source
• A poor module ground
• A failed control module

What to do next

1. Read the internal temperature on a scan tool when the module is cool
2. Compare it to ambient temperature
3. Check the module ground and airflow
4. Look for a heat source near the module
5. Replace the control module if the reading is out of range when cool
6. Clear the code and retest

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