OBD Guide
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U1245

Invalid Or Missing Data For Interior Environment

U1245 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Interior Environment. Common causes: problems with the can bus, faulty interior temperature sensor. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect operation of climate control
  • Spontaneous system switching on/off
  • Lack of response to temperature adjustments
  • Flashing lights on the control panel

Causes

  • Problems with the CAN bus
  • Faulty interior temperature sensor
  • Open circuit in the climate control module power supply circuit
  • Software error in the control unit
  • Corrosion of contacts in connectors

How to Fix

  1. Check CAN bus connections
  2. Test temperature and humidity sensors
  3. Check the integrity of the wiring harness
  4. Read real system operating parameters using a scanner
  5. Update control unit software

Related codes

U1246U1244U1255

FAQ

What does the U1245 code mean?

U1245 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Interior Environment

What causes a U1245 error code?

The most common causes of U1245 include: Problems with the CAN bus; Faulty interior temperature sensor; Open circuit in the climate control module power supply circuit; Software error in the control unit.

How do I fix a U1245 diagnostic trouble code?

To fix U1245: Check CAN bus connections. Test temperature and humidity sensors. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1245?

Yes, but get it checked soon

How much does it cost to fix U1245?

The estimated repair cost for U1245 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat