2016 Mercedes-Benz Sprinter 3500 OBD2 Fault Codes P06A9, P0405, P0122 - Diagnosis & Sensor Location Guide

Model: 2016 Sprinter 3500 Fault Code: P0122 Posted: 2022-09-07 12:20

This issue occurs on a 2016 Winnebago Navion RV equipped with a Mercedes-Benz Sprinter 3500 engine. The dashboard displays an 'engine' warning symbol, and the vehicle is in limp mode with severely limited acceleration—only manageable when operating in first gear. Maximum RPM is capped at 3000. OBD2 diagnostic codes detected: P06A9 (Sensor Voltage 'D' out of range), P0405 (EGR Position Sensor Circuit A low), and P0122 (Throttle Position Sensor Circuit A low). For clarity, I'm seeking detailed technical information: - Where is the 'Voltage D' sensor located? What is its pinout and connector location? - What is the pinout for the EGR position sensor connector (specifically circuit A) on this model? - Where is the Throttle Position Sensor (TPS) installed, and what are the pinouts of its connector? - Can you provide the PCM wiring diagram or pinout details for these sensors? - Are there available service manuals or diagrams that explain the 'A' and 'D' circuits in the 2016 Sprinter 3500 system? Any guidance on troubleshooting or accessing official technical documentation would be greatly appreciated. Thank you.