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Home >> Nissan-Datsun >> 1996 >> Altima L4-2.4L (KA24DE) >> Repair and Diagnosis >> Powertrain Management >> 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




DESCRIPTION
The ECM consists of a microcomputer, diagnostic test mode selector, and connectors for signal input and output and for power supply. The unit controls the engine.




DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE
WITH CONSULT
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT.
3. Start engine.
4. Run engine for at least 30 seconds at idle speed.

OR

WITH GST
1. Turn ignition switch "ON".
2. Select "Mode 3" with GST.
3. Start engine.
4. Run engine for at least 30 seconds at idle speed.

OR

WITH NO TOOLS
1. Turn ignition switch "ON".
2. Start engine and wait at least 30 seconds.
3. Turn ignition switch "OFF" and wait at least 5 seconds.
4. Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.







DIAGNOSTIC PROCEDURE



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