Fault Codes D/E75B1, D/E75B2 & D/E75B3: Communication Fault Between ASR Control Unit & ETS Control Unit

Ensure all components are connected. Start and idle engine. Ensure about 5-7 volts are present by backprobing at following terminals:
- ETS Terminal No. 32 (Black/White wire)
- ETS Terminal No. 29 (Yellow wire)
- ASR Terminal No. 14 (Yellow wire)
- ASR Terminal No. 2 (Black/White wire).
  NOTE: Measured communication signal is a DC reference signal from one ECU which has a good ground signal pulsed by other ECU. If a voltage close to zero or 10 volts is measured, it most likely indicates a broken wire or a short to ground.
Ensure all components are connected, engine is idling, and vehicle is stationary. Connect a logic probe to each terminal noted in step 1). Logic probe should indicate a pulse signal by illuminating HI and LO logic level indicators.
Turn ignition off. Disconnect ETS ECU and ASR ECU connectors. Ensure continuity is present in Yellow wire between ASR ECU terminal No. 14 and ETS ECU terminal No. 29. Also ensure continuity is present in Black/White wire between ASR ECU terminal No. 2 and ETS ECU terminal No. 32.
Turn ignition on. Ensure ETS ECU and ASR ECU are still disconnected. Check wires in step 3) for a short to ground or voltage and repair as necessary. If not faults were found with any wiring or system, replace ASR ECU. If problem persists, replace ETS ECU.