DTC 0301

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 and run it at least 30 seconds at idle speed.

OR

With GST
(1) Turn ignition switch "ON".
(2) Select "Mode 3" with GST.
(3) Start engine and run it at least 30 seconds at idle speed.

OR

No Tools
(1) Turn ignition switch "ON".
(2) Start engine and run it at least 30 seconds at idle speed.
(3) Turn ignition switch "OFF" and wait at least 5 seconds.
(4) Perform "Diagnostic Test Mode II" (Self-diagnostic( results) with ECM.




DIAGNOSTIC PROCEDURE