OBD Guide
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B2426

Passenger Solar Radiation Sensor Circuit Open

B2426 is an OBD-II diagnostic trouble code meaning: Passenger Solar Radiation Sensor Circuit Open. Common causes: broken wires to the solar radiation sensor, poor contact in the sensor connector. Estimated repair cost: $22–89.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Incorrect operation of climate control
  • Automatic mode does not take into account solar load
  • The Check Engine light comes on (on some models)

Causes

  • Broken wires to the solar radiation sensor
  • Poor contact in the sensor connector
  • Malfunction of the sensor itself
  • Wiring harness damage
  • Problems with the climate control unit

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Clean the contacts in the sensor connector
  3. Check sensor resistance (compare with specifications)
  4. Replace sensor if necessary
  5. Check the operation of the system after repair

Related codes

B2425B2427

FAQ

What does the B2426 code mean?

B2426 is an OBD-II diagnostic trouble code that indicates: Passenger Solar Radiation Sensor Circuit Open

What causes a B2426 error code?

The most common causes of B2426 include: Broken wires to the solar radiation sensor; Poor contact in the sensor connector; Malfunction of the sensor itself; Wiring harness damage.

How do I fix a B2426 diagnostic trouble code?

To fix B2426: Check the integrity of the wiring harness to the sensor. Clean the contacts in the sensor connector. Check sensor resistance (compare with specifications). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2426?

Yes, but get it checked soon

How much does it cost to fix B2426?

The estimated repair cost for B2426 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat