Engine Control Module: Testing and Inspection

ECM Harness Connector Terminal Layout

ECM Harness Connector Terminal Layout:

ECM Terminals and Reference Value

PREPARATION




1. ECM is located in the engine room passenger side behind battery.
2. Remove ECM harness connector.




3. When disconnecting ECM harness connector, loosen it with levers as far as they will go as shown in the figure.
4. Connect a break-out box (SST) and Y-cable adapter (SST) between the ECM and ECM harness connector.
- Use extreme care not to touch 2 pins at one time.
- Data is for comparison and may not be exact.

ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by CONSULT-II.

Part 1:

Part 2:

Part 3:

Part 4:

Part 5:

Part 6:

Part 7:

Part 8:

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.