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Pinout Values and Diagnostic Parameters

CHECK AT THE ENGINE CONTROL MODULE (ECM)

1. Disconnect the ECM connectors B-108 and B-109, and connect check harness special tool MB992110 between the ECM connectors.
2. Measure the voltage between each check harness connector terminal and check harness connector ground terminal (No. 81 or No. 93).

TERMINAL VOLTAGE CHECK CHART

NOTE:
*1: Measuring an average voltage through an analog voltmeter is recommended (because the average voltage would be not constantly shown on a digital voltmeter).
*2: Vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" position but is no problem for checks.

Terminal Voltage Check Chart (Part 1):




Terminal Voltage Check Chart (Part 2):




Terminal Voltage Check Chart (Part 3):




Terminal Voltage Check Chart (Part 4):




Terminal Voltage Check Chart (Part 5):




Terminal Voltage Check Chart (Part 6):




Terminal Voltage Check Chart (Part 7):






TERMINAL RESISTANCE AND CONTINUITY CHECK

Terminal Resistance And Continuity Check (Part 1):




Terminal Resistance And Continuity Check (Part 2):




Terminal Resistance And Continuity Check (Part 3):