Pinout Values and Diagnostic Parameters

CHECK AT ECU TERMINALS

TERMINAL VOLTAGE CHECK

Required Special Tool:

MB991997: ASC Check Harness





Connect the special tool ASC check harness (MB991997) to measure the voltage between each check connector terminal and the ground terminal (No.16 or 47).






CONTINUITY CHECK AT WIRING HARNESS-SIDE CONNECTOR

Required Special Tool:

MB991997: ASC Check Harness





1. When performing the continuity check, turn the ignition switch to LOCK (OFF) position, connect the special tool ASC check harness (MB991997) as shown in the figure, and disconnect the ASC-ECU connector.
2. Check for continuity between terminals shown in the chart below.
3. Terminal layout is shown in the figure.