Mitsubishi Lancer Evolution IX. Manual — part 548
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-65
STEP 5. Connector check: C-215 rear window
defogger relay connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the connector.
STEP 6. Check the wiring harness between C-215
rear window defogger relay connector terminal
No.5 and the fusible link (1).
AC504692AC
Connector: C-215 <LHD>
Junction block side
Junction block (Front view)
AC504694AC
Junction block (Front view)
Junction block side
Connector: C-215 <RHD>
AC504633AG
Connectors: C-212, C-215 <LHD>
Harness side
Junction block (Front view)
C-215
C-215
C-212
C-212 (B)
Junction block side
AC504635AG
Harness side
Junction block (Front view)
C-215
C-212
C-215
C-212 (B)
Connectors: C-212, C-215 <RHD>
Junction block side
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-66
NOTE:
Prior to the wiring harness inspection, check interme-
diate connectors C-126 and junction block connector
C-212, and repair if necessary.
• Check the rear window defogger relay power
supply line for open or short 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 7. Voltage measurement at C-215 rear
window defogger relay connector.
(1) Remove the relay, and measure at the junction
block side.
(2) Turn the ignition switch to the "ON" position.
(3) Voltage between terminal 1 and body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 10.
NO :
Go to Step 8.
AC504622AH
Connector: C-126 <LHD>
Harness side
AC504618AN
Connector: C-126 <RHD>
Harness side
AC504692AC
Connector: C-215 <LHD>
Junction block side
Junction block (Front view)
AC504694AC
Junction block (Front view)
Junction block side
Connector: C-215 <RHD>
AC301541KG
Connector C-215
(Junction block side)
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-67
STEP 8. Connector check: C-215 rear window
defogger relay connector
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the connector.
STEP 9. Check the wiring harness between C-215
rear window defogger relay connector No.1 and
ignition switch (IG2).
NOTE: Prior to the wiring harness inspection, check
junction block connector C-211, and repair if neces-
sary.
• Check the rear window defogger power supply
line 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.
AC504692AC
Connector: C-215 <LHD>
Junction block side
Junction block (Front view)
AC504694AC
Junction block (Front view)
Junction block side
Connector: C-215 <RHD>
AC504633AH
Connectors: C-211, C-215 <LHD>
Harness side
C-211
Junction block (Front view)
C-211
C-215
C-215
Junction block side
AC504635AH
Harness side
C-211
Junction block (Front view)
C-211
C-215
C-215
Junction block side
Connectors: C-211, C-215 <RHD>
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-68
STEP 10. Connector check: C-215 rear window
defogger relay connector and C-36 A/C-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the connector.
STEP 11. Check the wiring harness between rear
window defogger relay connector C-215 No.3 and
A/C-ECU connector C-36 No.16.
AC504622AB
Connector: C-36 <LHD>
Harness side
C-36 (B)
AC504618AJ
Connector: C-36 <RHD>
Harness side
C-36 (B)
AC504692AC
Connector: C-215 <LHD>
Junction block side
Junction block (Front view)
AC504694AC
Junction block (Front view)
Junction block side
Connector: C-215 <RHD>
AC504622AB
Connector: C-36 <LHD>
Harness side
C-36 (B)
AC504618AJ
Connector: C-36 <RHD>
Harness side
C-36 (B)
AC504633AI
Connectors: C-214, C-215 <LHD>
Harness side
Junction block (Front view)
C-214
C-215
C-215
C-214
Junction block side
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