Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 493

54B-26
Inspection Procedure J-1
No ignition switch (ACC) signal input to ETACS-ECU.
As the ignition switch (ACC) input signal is used to control the operation of the
following functions, any abnormality in this signal prevents these functions
operating normally.
D Windshield wiper and washer
Measure at ETACS-ECU connector C-226.
D Disconnect the connector and test on the junction box
side.
D Ignition switch: ACC
D Voltage between terminal 18 and body earth.
OK : System voltage
Replace ETACS-ECU.
Inspection Procedure J-2
No ignition switch (IG1) signal input to ETACS-ECU.
As the ignition switch (IG1) input signal is used to control the operation of the
following functions, any abnormality in this signal prevents these functions
operating normally.
D Lights left ON reminder warning function
D Power window timer function
D Headlamp automatic cut-off function
D Turn signal lamps
D Room lamps
Measure at ETACS-ECU connector C-226.
D Disconnect the connector and test on the junction box
side.
D Ignition switch: ON
D Voltage between terminal 8 and body earth.
OK : System voltage
Replace ETACS-ECU.
SWS -
OK
OK
Troubleshooting
Probable cause
D ETACS-ECU fault
D Harness or connector fault
NG
Check the following connectors: C-226, C-210
OK
Check the trouble
symptoms.
NG
Check the harness between the ETACS-ECU and the ignition
switch (ACC), and repair if necessary.
Probable cause
D ETACS-ECU fault
D Harness or connector fault
NG
Check the following connectors: C-226, C-210
OK
Check the trouble
symptoms.
NG
Check the harness between ETACS-ECU and the ignition
switch (IG1), and repair if necessary.
NG
Repair
NG
Repair