Pinout Values and Diagnostic Parameters

ECM (M/T) OR PCM (A/T) TERMINAL VOLTAGE REFERENCE CHART FOR AUTO-CRUISE CONTROL SYSTEM OPERATION

1. Disconnect the ECM (M/T) or PCM (A/T) connectors, and connect special tool MB991923 (Power plant ECU check harness) in between.
2. Measure the voltages between the check connector terminals of special tool MB991923 and ground terminals 63 or 76.

Special Tool-Power Plant ECU Check Harness (MB991923) Connector: Component Side (Part 1):

Special Tool-Power Plant ECU Check Harness (MB991923) Connector: Component Side (Part 2):