2005 MITSUBISHI 380 heater

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Page 708 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-7
To prevent damage to diagnostic tool , always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disc

Page 709 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-8
HOW TO DIAGNOSE THE CAN BUS LINE
Required Special Tools:
 : Diagnostic Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Inter

Page 710 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-9
DIAGNOSTIC TROUBLE CODE CHART M1554004900214
During diagnosis, a DTC code associated with 
other system may be set when the ignition swi

Page 711 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-10
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC B1001, B1002: Interior Temperature Sensor System.
DTC SET CONDITION
DTC B1001 is set if there is

Page 712 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-11
STEP 1. Using diagnostic tool , diagnose the CAN bus line.
Use diagnostic tool  to diagnose the CAN bus lines.
(1) Connect diagnostic t

Page 713 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-12
STEP 3. Using diagnostic tool , check data list item 59: 
Inside temperature sensor.
To prevent damage to diagnostic tool , always turn

Page 714 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-13
STEP 4. Check A/C-ECU connector C-15, C-16 and interior 
temperature sensor connector C-123 for loose, corroded 
or damaged terminals,

Page 715 of 1500

MITSUBISHI 380 2005  Workshop Manual AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-14
STEP 5. Check the wiring harness between A/C-ECU 
connector C-15 (terminals 20), C-16 (terminals 22) and 
interior temperature sensor c
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