Code Definition

B1034 — Interior Temperature Sensor System Circuit Shorted

System: Body  |  Type: Manufacturer-Specific  |  Make: Mitsubishi

About B1034

B1034 is a manufacturer-specific body diagnostic trouble code recorded for Mitsubishi vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1034 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1034 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Interior Temperature Sensor on Mitsubishi vehicles is a negative temperature coefficient (NTC) thermistor mounted in the dashboard or centre console, typically fitted with a small aspirator fan that draws cabin air across the sensor element to provide a representative interior temperature reading to the climate control module. The module supplies a 5V reference through an internal pull up resistor and reads the divided voltage at the sensor to calculate cabin temperature for automatic climate control operation. DTC B1034 is set when the climate control module detects that the interior temp...

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