FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Pinout Values and Diagnostic Parameters

CHECK AT TCL/ASC-ECU

TERMINAL VOLTAGE CHECK CHART

Required Special Tool:
MB991997: ASC Check Harness





1. Disconnect the TCL/ASC-ECU connector A-38, and then use special tool MB991997 to measure the voltages between terminals (47) and each terminal other than terminal (16) as well as between terminal (16) and each terminal other than terminal (47).
2. The terminal layouts are shown in the illustrations below.

NOTE: Do not measure terminal voltage for approximately three seconds after the ignition switch is turned "ON." The TCL/ASC-ECU performs the initial check during that period.





RESISTANCE AND CONTINUITY BETWEEN HARNESS-SIDE CONNECTOR TERMINALS








1. Disconnect the connector A-38, and connect special tool MB991997 to the wiring harness-side connector.

NOTE: Do not connect special tool MB991997 to the TCL/ASC-ECU.

2. Measure the resistance and continuity between the terminals indicated in the table below.