U135B
Lost Communication With Sunload Sensor
U135B is an OBD-II diagnostic trouble code meaning: Lost Communication With Sunload Sensor. Common causes: light sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $6–33.
Symptoms
- Automatic headlights do not turn on/off
- Incorrect operation of the climate control system
- Error message on the dashboard
- Instrument lighting does not adapt to lighting conditions
- The rain sensor does not work (in some models)
Causes
- Light sensor malfunction
- Open or short circuit in the sensor circuit
- Oxidation of contacts in the sensor connector
- Problems with the control unit
- Wiring harness damage
How to Fix
- Check the integrity of the light sensor
- Inspect the connectors and wiring of the sensor
- Check the voltage in the sensor circuit
- Scan the control unit for other errors
- Replace the sensor if necessary (RUB 500–3,000)
Related codes
FAQ
What does the U135B code mean?
U135B is an OBD-II diagnostic trouble code that indicates: Lost Communication With Sunload Sensor
What causes a U135B error code?
The most common causes of U135B include: Light sensor malfunction; Open or short circuit in the sensor circuit; Oxidation of contacts in the sensor connector; Problems with the control unit.
How do I fix a U135B diagnostic trouble code?
To fix U135B: Check the integrity of the light sensor. Inspect the connectors and wiring of the sensor. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U135B?
Yes, but get it checked soon
How much does it cost to fix U135B?
The estimated repair cost for U135B is $6–33. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat