B2106

Code

Other B — Body

Throttle Position Input Out of Range High

Brand: Other

Type: B — Body

Views: UK: 34 EN: 51 RU: 33

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Read stored codes and freeze-frame data with a scan tool; note PID values for TPS and accelerator pedal position sensors
Visual inspection of TPS connector and wiring for damage, corrosion, or pin pushed out
Backprobe TPS connector and measure signal voltage with ignition ON (engine OFF) and while slowly opening throttle
Verify ECU 5V reference and ground are present and within specification
Disconnect TPS and check whether the code clears or if the signal line still reads high (indicates wiring/short or ECU issue)
Inspect for aftermarket alarms, chargers, or tamper that might tap into wiring harness

Typical TPS reference voltage: ~5.0 V (verify factory spec)
Typical TPS output at closed throttle: ~0.2–1.0 V (varies by vehicle)
Typical TPS output at wide open throttle: ~4.0–4.5 V (varies by vehicle)
Out-of-range-high condition: measured TPS output higher than expected (near battery voltage or >specified maximum, often >4.9–5.1 V)
Expected continuity/insulation: no short between signal wire and battery positive

Record DTCs, freeze frame, and live TPS/accelerator PIDs. Note battery voltage during fault.
Perform a careful visual inspection of throttle body harness, connector, and wiring for damage, pin corrosion, or signs of overheating.
With ignition ON (engine OFF), backprobe the TPS: measure reference (should be ~5V), ground, and sensor output. Slowly operate throttle and observe output—should vary smoothly between closed and wide-open values.
If sensor output reads higher than reference or near battery voltage, disconnect the TPS harness; if the line remains high with sensor disconnected suspect wiring short to battery or ECU fault.
Check for a short to battery: measure voltage between the signal wire and ground with harness connected and disconnected. Inspect/repair any shorted wiring or damaged insulation.
Wiggle test wiring while watching live data for intermittent changes; use an oscilloscope if available to check for noise or spikes.
If wiring and reference are good and output still out of range, replace the TPS with a known-good unit per vehicle procedure.
After repair, clear codes, perform relearn/calibration if required by manufacturer, and road-test to confirm the fault does not return.
If fault persists after sensor replacement and wiring checks, consider ECU/input module diagnosis or replacement by a qualified technician.