In-vehicle Temperature Sensor Circuit Range/Performance Problem
The system detected a problem with the in-vehicle temperature sensor.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The vehicle's computer measures the temperature from a sensor inside the car. If the readings seem way off or too high/low, it raises a flag because it can't trust that information for climate control.
What the computer is actually seeing
The computer compares the temperature reading from the in-vehicle temperature sensor to expected values. If the reading exceeds the operational range, a fault code is triggered.
What a healthy reading looks like
Normal readings for an in-vehicle temperature sensor range from 0°C to 60°C (32°F to 140°F) depending on cabin conditions.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check for any damaged wiring or loose connectors at the in-vehicle temperature sensor. Repair as needed. Decision point: Do you find any issues? (Yes: repair, No: proceed)
- 2Verify sensor resistance using a multimeter. At 25°C (77°F), it should read around 2.5k ohms. Decision point: Is the reading within spec? (Yes: proceed, No: replace sensor)
- 3Inspect the HVAC control module for any faults or internal failure. Use a scan tool to check for related codes. Decision point: Are there other related codes? (Yes: diagnose accordingly, No: consider further investigation)
Common causes
- Faulty in-vehicle temperature sensor
- Wiring issues or bad connections
- Faulty HVAC control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but avoid extreme temperatures as cabin comfort could be affected.
Will this problem come back after clearing the code?
If the root cause isn't fixed, it likely will return.
Why does this code show up with other codes?
It's common for multiple sensors to fail or have issues if there's an underlying fault, usually in the wiring or control module.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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