Manuals through 2025 now available!

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LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Engine Control Module: Testing and Inspection

CHECK AT THE ENGINE CONTROL MODULE (ECU) [M/T] OR THE POWERTRAIN CONTROL MODULE (PCM) [A/T]

1. Disconnect the ECM [M/T] or the PCM [A/T] connectors B-18, B-19, B-20, B-21 and B-22, and connect check harness special tool MB991923 between the ECM [M/T] connectors or the PCM [A/T] connectors.
2. Measure the voltage between each check harness connector terminal and check harness connector ground terminal (No. 25 or No. 29).

TERMINAL VOLTAGE CHECK CHART

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):