Body
Generic/SAE
OBD-II Fault Code
B2106: Throttle Position Input Out of Range High
Meaning, symptoms, likely causes, diagnostic checks and repair guidance for B2106.
Throttle / pedal sensor
Use this category to narrow your checks before replacing parts.
High
Severity is a general guide. Confirm with scan-tool data and vehicle symptoms.
What B2106 usually means
Throttle Position Input Out of Range High.
Common symptoms
Body/accessory warning lamp or feature not working; Reduced power / limp mode possible; Hesitation or unstable idle
Likely causes
Dirty throttle body; Faulty throttle/pedal position sensor; Wiring/connector fault; Adaptation needed; High signal voltage; Open ground; Short to voltage; Failed sensor
Diagnostic checks
Check related fuses, connectors, grounds and switch/module power supply; Inspect throttle body and connector; Check sensor correlation data with scan tool; Check sensor ground and signal circuit for short to voltage
Repair guidance
Clean throttle body if appropriate, repair wiring, perform throttle relearn, replace failed sensor/body after testing; Repair ground/signal circuit or replace confirmed faulty sensor
Verification after repair
Operate the affected body/accessory system and rescan