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Home >> Mazda >> 1993 >> 626 L4-1991cc 2.0L DOHC >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Testing and Inspection >> Component Tests and General Diagnostics
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Component Tests and General Diagnostics

INSPECTION

ENGINE SIGNAL MONITOR

1. Disconnect the Powertrain Control Module (PCME) connectors.






2. Connect the Special Service Tools (SSTs). (Engine Signal Monitor and Adapter) to the PCME as shown.


NOTE: Use connector B of Adapter from terminal 2A through 2P Automatic Transmission (ATX).






3. Place the SST (sheet) on the Engine Signal Monitor.
4. Measure the voltage at each terminal.
5. If any PCME terminal voltage is incorrect, check the related input or output devices and wiring. If no problem is found, replace the PCME.






CAUTION: NEVER APPLY VOLTAGE TO SST TERMINALS A AND B.






DT-S1000

1. Disconnect the PCME connector.
2. Assemble the DT-S1OOO.
3. Disconnect the negative battery cable and connect the DT-S1OOO to the PCME.
4. Reconnect the negative battery cable.





5. Select the input/output signal monitor function from the DT-S1OOO display.






NOTE: The maximum number of selections is eight.

6. Select the inspection item (terminal number.)
7. Verify indication of the respective data item in each condition, referring to the PCME terminal voltage chart.
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