Mitsubishi Grandis. Manual — part 111
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-441
DIAGNOSTIC PROCEDURE
Step 1. Connector check: C-301 column switch
connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Step 2. Resistance measurement at the C-301
column switch connector.
(1) Disconnect the connector, and measure at the
column switch side.
(2) Resistance between C-301 column switch
connector terminal No.6 and body earth
OK: The resistance should rise from 0 to
1 k
Ω when the windshield intermittent
wiper volume is rotated from "Fast" to
"Slow".
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the column switch.
AC310153
Connector: C-301 <LHD>
AI
Column switch side
AC310183
Connector: C-301 <RHD>
AI
Column switch side
AC310153
Connector: C-301 <LHD>
AI
Column switch side
AC310183
Connector: C-301 <RHD>
AI
Column switch side
AC301541
Connector C-301
(Column switch side)
ID
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-442
Step 3. Connector check: C-221 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
Step 4. Check the wiring harness between C-301
column switch connector terminal No.6 and
C-221 ETACS-ECU connector terminal No.66.
• Check the input line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the wiring harness.
AC312037
Connector: C-221 <LHD>
Junction block (Rear view)
AD
Harness side
AC312047
Connector: C-221 <RHD>
Junction block (Rear view)
AD
Harness side
AC312039
Connector: C-301
AC
Harness side
<LHD>
AC312049
Connector: C-301 <RHD>
AC
Harness side
AC312037
Connector: C-221 <LHD>
Junction block (Rear view)
AD
Harness side
AC312047
Connector: C-221 <RHD>
Junction block (Rear view)
AD
Harness side
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-443
Step 5. Retest the system.
Check that the windshield intermittent wiper volume
is sending a correct signal.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the ETACS-ECU.
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-444
Inspection Procedure Q-9: When the power window main switch is operated, the switch signals are
not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
POWER
WINDOW RELAY
ETACS-ECU
DIAGNOSIS
CONNECTOR
POWER WINDOW
MAIN SWITCH
FUSIBLE
LINK
5
FRONT SIDE
J/B SIDE
CPU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Power Window Main Switch Input Circuit <LHD>
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