WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL OIL LEVEL SENSOR Oil Sensor Location Detail (with filter and harness removed for clarity) 4000MH/HD/B 500 CONTROL MODULE 3000MH/MD/B 300/B 400 CONTROL MODULE Oil Sensor Location Detail V06108.01 Figure 5–2. Design 2 Oil Level Sensor Orientation Copyright © 2001 General Motors Corp.