Mitsubishi Grandis. Manual — part 258
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-494
DIAGNOSIS PROCEDURE
Step 1. Connector check: C-308 key reminder
switch connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Step 2. Check the key reminder switch.
Refer to GROUP 54A
− Ignition switch
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the key reminder switch.
Step 3. Resistance measurement at the C-308 key
reminder switch connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Resistance between C-308 key reminder switch
connector terminal No.4 and body earth
OK: 2
Ω or less
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
AC312039
2
7 6
1
3
5 4
Connector: C-308 <LHD>
AB
Harness side
AC312049
2
7 6
1
3
5 4
Connector: C-308 <RHD>
AB
Harness side
AC312039
2
7 6
1
3
5 4
Connector: C-308 <LHD>
AB
Harness side
AC312049
2
7 6
1
3
5 4
Connector: C-308 <RHD>
AB
Harness side
AC312730AB
Connector C-308
(Harness side)
2
7 6
1
3
5 4
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-495
Step 4. Check the wiring harness between C-308
key reminder switch connector terminal No.4 and
the body earth.
• Check the earth wires for open circuit.
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 :
Repair the wiring harness.
Step 5. Connector check: C-220 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
AC312039
2
7 6
1
3
5 4
Connector: C-308 <LHD>
AB
Harness side
AC312049
2
7 6
1
3
5 4
Connector: C-308 <RHD>
AB
Harness side
AC312037
Connector: C-220
Junction block (Rear view)
AC
<LHD>
Harness side
AC312047
Connector: C-220
Junction block (Rear view)
AC
<RHD>
Harness side
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-496
Step 6. Check the wiring harness between C-308
key reminder switch connector terminal No.6 and
C-220 ETACS-ECU connector terminal No.30.
• Check the input line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. ETACS switch data by using the SWS
monitor
Check the input signal from the key reminder switch.
• key reminder switch: OFF (key inserted) to ON
(key removed)
OK: Normal condition is displayed.
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.
AC312037
Connector: C-220
Junction block (Rear view)
AC
<LHD>
Harness side
AC312047
Connector: C-220
Junction block (Rear view)
AC
<RHD>
Harness side
AC312039
2
7 6
1
3
5 4
Connector: C-308 <LHD>
AB
Harness side
AC312049
2
7 6
1
3
5 4
Connector: C-308 <RHD>
AB
Harness side
Item No.
Item name
Normal
condition
Item 03
KEY REMIN SW
from OFF to ON
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-497
Inspection Procedure Q-12: The hazard warning lamp switch signal is not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
ETACS-
ECU
HAZARD
WARNING
LAMP SWITCH
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
Hazard Warning Lamp Switch Input Circuit <LHD>
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