Code Definition

B2106 — Throttle Position Input Out of Range High

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B2106

B2106 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B2106 is stored, the module has detected a signal or supply voltage higher than the expected operating range; and a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

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.

Because B2106 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Body Control Module (BCM) on some vehicles monitors the throttle position sensor signal as part of cruise control, traction control, or convenience system inputs. DTC B2106 is set when the BCM detects that the throttle position input voltage is above the calibrated maximum value, indicating an out of range high condition. This typically occurs when the signal voltage exceeds approximately 4.8V when the wide open throttle voltage should be near 4.5V. The fault is commonly caused by an open ground circuit, a short to the 5V reference or battery voltage, or an internally faulty sensor. When t...

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