2004 MITSUBISHI ENDEAVOR relay

Fig. 33: Identifying Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is A/C-ECU connector C-16 in good condition?

YES:
Go to Step 7.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. The rear blower motor should operate
normally.
STEP 7. Check the wiring harness between A/C-ECU connector C-16
(terminal 7) and rear blower relay connector C-209 (terminal 3).

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 36: Identifying Connector C
-104

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between A/C-ECU connector C-16 (terminal 7)
and rear blower relay connector C-209 (terminal 3) in good condition?

YES:
Replace the A/C-ECU, and check that the rear blower motor should
operate normally.
NO:
Repair the wiring harness. The rear blower motor should operate
normally.
STEP 8. Measure the voltage at rear blower relay connector C-209.

1. Disconnect rear blower relay connector C-209, and measure the voltage at
the
junction block side.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 38: Measuring Voltage Between Terminal 4 And Ground

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the measured voltage approximately 12 volts?

YES:
Go to Step 10 .
NO:
Go to Step 9.
STEP 9. Check the wiring harness between rear blower relay connector C-
209 (terminal 4) and fusible link (1).

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 41: Identifying Connector C
-31
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between rear blower relay connector C-209
(terminal 4) and fusible link (1) in good condition?

YES:
It can be assumed that this malfunction is intermittent. Refer to
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
.
NO:
Repair the wiring harness. The rear blower motor should operate
normally.
STEP 10. Measure the resistance at rear blower relay connector C-209 in
order to the ground circuit to the rear blower relay.

1. Disconnect rear blower relay connector C-209, and measure at the
junction block side.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 43: Measuring Resistance Value Between Terminal 2 And Ground

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Does the measured resistance value correspond with this range?

YES:
Go to Step 12 .
NO:
Go to Step 11.
STEP 11. Check the wiring harness between rear blower relay connector
C-209 (terminal 2) and the ground.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 44: Locating Connector C
-209

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between rear blower relay connector C-209
(terminal 2) and the ground in good condition?

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/INSPECTION
SERVICE POINTS
.
NO:
Repair the wiring harness. The rear blower motor should operate
normall
y.
NOTE: Also check joint connector C-104. If joint connector C-
104 is damaged, repair or replace the connector as
described in HARNESS CONNECTOR INSPECTION
.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 45: Identifying Connector C
-104

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

STEP 12. Check the wiring harness between rear blower motor connector
C-20 (terminal 3) and rear blower relay connector C-209 (terminal 1).

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Q: Is the wiring harness between rear blower motor connector C-20
(terminal 3) and rear blower relay connector C-209 (terminal 1) in good
condition?

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/INSPECTION
SERVICE POINTS
.
NO:
Repair the wiring harness. The rear blower motor should operate
normally.
STEP 13. Check the rear blower fan and motor operation.

1. Disconnect rear blower motor connector C-20.
NOTE: Also check intermediate connector C-24 and junction
block connector C-213 for loose, corroded, or damaged
terminals, or terminals pushed back in the connector. If
intermediate connector C-24 or junction block
connectors C-213 is damaged, repair or replace the
connector as described in HARNESS CONNECTOR
INSPECTION
.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor