Pinout Values and Diagnostic Parameters

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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.