Page 2489 of 3870
Fig. 54: Measuring Resistance Value Between Terminal 3 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Does the measured resistance value correspond with this range?
YES:
Go to Step 18 .
NO:
Go to Step 17.
STEP 17. Check the wiring harness between floor console rear A/C switch
assembly connector C-19 (terminal 3) and ground.
Q: Is the wiring harness between floor console rear A/C switch assembly
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor
Page 2490 of 3870
connector C-19 (terminal 3) and 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
normally.
Fig. 55: Locating Connector C
-19
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STEP 18. Check the wiring harness between rear blower motor connector
C-20 (terminal 1) and floor console rear A/C switch assembly connector C-
19 (terminal 5)
.
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor
Page 2491 of 3870
Q: Is the wiring harness between rear blower motor connector C-20
(terminal 1) and floor console rear A/C switch assembly connector C-19
(terminal 5) 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.
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor
Page 2492 of 3870
Fig. 56: Identifying Connectors C
-19 And C
-20
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INSPECTION PROCEDURE 13: REAR BLOWER AIR VOLUME CANNOT BE CHANGED
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor
Page 2493 of 3870
Fig. 57: View Of Rear Blower Switch And Resistor Circuit
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor
Page 2494 of 3870
Fig. 58: Identifying Connectors C
-19, C
-20 And C
-21
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CIRCUIT OPERATION If the blower motor speed cannot be changed, the resistor circuit is suspected. TROUBLESHOOTING HINTS
Malfunction of the resistor Malfunction of the floor console rear A/C switch assembly Dama
ged harness wires or connectors
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2004 HVAC Automatic Air Conditioning - Endeavor
Page 2495 of 3870
DIAGNOSI
S
Required Special Tool:
MB991223: Test Harness Set STEP 1. Check resistor connector C-21 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Is resistor connector C-21 in good condition?
YES:
Go to Step 2.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. The rear blower motor should operate
normally.
Fig. 59: Locating Connector C
-21
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor
Page 2496 of 3870
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
STEP 2. Check the resistor operation.
1. Disconnect resistor connector C-21.
Fig. 60: Locating Connector C
-21
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Use an ohmmeter to measure the resistance between the terminals. Check
that the measured value is at the standard value.
Standard value:
RESISTOR CONNECTOR C-21 STANDARD VALUE
MEASUREMENT TERMINAL
STANDARD VALUE
Between terminals 1 and 3 (ME)
2.2
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor