Lancer Evolution L4-2.0L DOHC Turbo (2003)
connector. Repair the wiring harness as necessary. The system should communicate with the column switch (column-ECU) normally.
STEP 9.
Replace the ECU.
1. Replace the column switch.
2. The system should communicate with the column switch (column-ECU) normally.
Q:
Can the system communicate with the column switch (column-ECU)?
YES: No action is necessary and testing is complete.
NO: Replace the ETACS-ECU. The system should communicate with the column switch (column-ECU) normally.
Inspection Procedure A-3
Communication with the ETACS-ECU is not possible.
ETACS-ECU Power Supply And SWS Communication Circuit Part 1