15/05/2026
⚠️ Toyota Avanza 2017 – Lost 5V Reference to throttle pedal Issue ⚠️
History:
✅ Throttle pedal replaced by dealership
✅ Throttle body replaced by dealership
✅ PCM/ECU replaced by dealership
But the problem still persists.
This indicates the issue may NOT be the major components anymore. Possible causes include:
🔧 Shorted sensor pulling down the 5V line
🔧 Wiring harness damage or open circuit
🔧 Poor ground connection
🔧 Corroded or loose terminals
🔧 Incorrect voltage supply to sensors
Proper circuit tracing and electrical diagnosis is very important before replacing more parts.
At GG Autoclinic, we perform:
✔️ 5V reference tracing
✔️ Wiring integrity tests
✔️ ECU pinout verification
✔️ Live data and signal analysis
✔️ Advanced electrical diagnostics
Don’t guess. Diagnose properly. 👍