Mitsubishi Lancer Evolution IX. Manual - part 544

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55-49

STEP 13. Connector check: C-216 blower relay 
connector and C-34 blower linear controller 
connector

Q: Is the check result normal?

YES : 

Go to Step 14.

NO : 

Repair the connector.

AC504617AC

Connector: C-34 <LHD>

Harness side

AC504618AC

Connector: C-34 <RHD>

Harness side

AC504692AB

Connector: C-216 <LHD>

Junction block side

Junction block (Front view)

AC504694AB

Junction block (Front view)

Connector: C-216 <RHD>

Junction block side

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55-50

STEP 14. Check the wiring harness between 
C-216 blower relay connector terminal No.4 and 
C-34 blower linear controller connector terminal 
No.6.

NOTE: Prior to the wiring harness inspection, check 
junction block connector C-211, and repair if neces-
sary.

• Check the blower linear controller 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 

P.00-5

).

NO : 

Repair the wiring harness.

AC504633AC

Connector: C-211, C-216 <LHD>

Junction block side

Junction block (Front view)

Harness side

C-211

C-211

C-216

C-216

AC504635AC

Harness side

Junction block (Front view)

C-211

C-216

Junction block side

C-216

C-211

Connector: C-211, C-216 <RHD>

AC504617AC

Connector: C-34 <LHD>

Harness side

AC504618AC

Connector: C-34 <RHD>

Harness side

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55-51

STEP 15. Resistance measurement at the C-34 
blower linear controller connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Continuity between terminal 3 and body earth

OK: 2

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 18.

NO : 

Go to Step 16.

STEP 16. Connector check: C-34 blower liner 
controller

Q: Is the check result normal?

YES : 

Go to Step 17.

NO : 

Repair the connector.

AC504617AC

Connector: C-34 <LHD>

Harness side

AC504618AC

Connector: C-34 <RHD>

Harness side

AC301541KC

Connector C-34
(Harness side)

AC504617AC

Connector: C-34 <LHD>

Harness side

AC504618AC

Connector: C-34 <RHD>

Harness side

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55-52

STEP 17. Check the wiring harness between C-34 
blower linear controller connector terminal No.3 
and body earth.

• Check the blower linear controller earth 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 

P.00-5

).

NO : 

Repair the wiring harness.

STEP 18. Connector check: C-36 A/C-ECU 
connector and C-34 blower linear controller 
connector

Q: Is the check result normal?

YES : 

Go to Step 19.

NO : 

Repair the connector.

AC504617AC

Connector: C-34 <LHD>

Harness side

AC504618AC

Connector: C-34 <RHD>

Harness side

AC504617AC

Connector: C-34 <LHD>

Harness side

AC504624AB

Connectors: C-34, C-36 <RHD>

Harness side

C-34

C-36 (B)

C-34

C-36

AC504622AB

Connector: C-36 <LHD>

Harness side

C-36 (B)