Boost temp sensor (T_BOOST), short circuit to ground
▶ How to fix
Check the connectors and wiring. Measure the resistance in the boost temperature sensor. The resistance shall be around 2.5k Ohm at 20º C. Measure voltage at pin B2_9, the voltage shall be around 5 V with sensor disconnected.
What you'll see
No driver-visible symptom recorded.
System reaction
The engine torque response could be affected and there is risk for black smoke.
Diagnostic depth
Detection
The voltage has been below 0.20 V. (~130 °C)
Possible cause
Short circuit to ground (U31).