Engine Control Module: Testing and Inspection

Inspection with Engine Signal Monitor
1. Connect the special service tools SSTs to the ECU as shown.

NOTE: Use connector A of the adapter to measure voltage at terminals 1A through lV and 3A through 3P, and use connector B to measure voltage at the terminals 2A through 2L and 4A through 4Z.

2. Place the SST (Sheet: 76-pin type) on the SST (Engine Signal Monitor).
3. Measure the voltage at each terminal.

See: ECU Terminal Voltage Charts below.

4. If any ECU terminal voltage is incorrect, check the input or output device and related wiring. If they are normal, replace the PCME.

CAUTION: Applying voltage to SST terminals A or B will damage the SST.






Inspection with DT-S1000






1. Connect the DT-S1000 to the diagnosis connector as shown in figure.







2. Select the real time monitor from the DT-S1000 display.

3. Turn ignition switch ON.


Caution -Do not turn the ignition switch OFF until real time monitor is completed.






4. Select the inspection items.


Note:The maximum selection items are 8. Basic Input signal needs two-channel, therefore if all selection items basic input signal. The maximum selection item is 4.

5. Verify indication of respective data item in each condition, referring to ECU terminal condition chart.


See: ECU Terminal Voltage Charts below.


Example

When checking the throttle sensor operation pattern at engine speed and intake air pressure, the following steps are available.






Step 1.

Select the engine speed and intake air pressure from Basic signal then select the solenoid valves.





Step 2.

Drive the vehicle and verify that the engine speed (rpm), intake air pressure (kPa), solenoid valves ON/OFF and duty signal (%) valve on the display.


Note:Referring to the DT-S1OOO instruction manual.

























































Inspection with Engine Signal Monitor




























































Inspection with DT-S1000