Code 0301

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







DIAGNOSTIC CHART




DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE
CONSULT
1) Turn ignition switch "ON".
2) Select "DATA MONITOR" mode with CONSULT.
3) Start engine and wait for at least 30 seconds.

OR

GST
1) Turn ignition switch "ON".
2) Select "Mode 3" with GST.
3) Start engine and wait for at least 30 seconds.

OR

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