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Dodge Durango (HB). Manual - part 1452
HEATING & AIR CONDITIONING
TABLE OF CONTENTS
page
HVAC - ELECTRICAL DIAGNOSTICS. . . . . . . . . . . . 1
HVAC - SERVICE INFORMATION . . . . . . . . . . . . 322
HVAC - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
B100A–RECIRCULATION SWITCH
REQUEST INPUT CIRCUIT LOW (ATC) . . . . . . 4
B100D–FLOOR MODE SWITCH REQUEST
INPUT CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . 5
B101C–TEMP DOWN SWITCH REQUEST
INPUT CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . 6
B101F–POWER ON/OFF SWITCH REQUEST
INPUT CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . 7
B102B–REAR FUNCTION CONTROL
SWITCH REQUEST INPUT CIRCUIT LOW(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
B102E–REAR BLEND REQUEST INPUT
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . . . 9
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . . 13
B102F–REAR BLEND REQUEST INPUT
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . . 17
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . . 22
B103A–REAR MODE DOOR CONTROL
CIRCUIT/PERFORMANCE (ATC) . . . . . . . . . . 28
CIRCUIT/PERFORMANCE (MTC) . . . . . . . . . . 29
B103B–REAR MODE DOOR CONTROL
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . . 30
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . . 38
B103C–REAR MODE DOOR CONTROL
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . . 43
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . . 46
B103D–REAR MODE DOOR CONTROL
CIRCUIT OPEN (ATC) . . . . . . . . . . . . . . . . . . 49
CIRCUIT OPEN (MTC) . . . . . . . . . . . . . . . . . . 53
B103E–REAR MODE DOOR TRAVEL
RANGE TOO SMALL (ATC & MTC) . . . . . . . . 57
B103F–REAR MODE DOOR TRAVEL RANGE
TOO LARGE (ATC & MTC) . . . . . . . . . . . . . . . 59
B104A–FLOOR/DEFROST MODE DOOR
TRAVEL RANGE TOO SMALL (ATC & MTC) . . 61
B104B–FLOOR/DEFROST MODE DOOR
TRAVEL RANGE TOO LARGE (ATC &MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
B104C–BLEND DOOR CONTROL CIRCUIT/
PERFORMANCE (ATC) . . . . . . . . . . . . . . . . . 65
PERFORMANCE (ACTIVE) (MTC) . . . . . . . . . 66
B104D–BLEND DOOR CONTROL CIRCUIT
LOW (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . 67
LOW (MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . 71
B104E–BLEND DOOR CONTROL CIRCUIT
HIGH (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . 75
HIGH (MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . 78
B104F–BLEND DOOR CONTROL CIRCUIT
OPEN (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . 81
OPEN (MTC) . . . . . . . . . . . . . . . . . . . . . . . . . 85
B105A–RECIRCULATION DOOR CONTROL
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . . 89
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . . 92
B105B–RECIRCULATION DOOR CONTROL
CIRCUIT OPEN (ATC) . . . . . . . . . . . . . . . . . . 95
CIRCUIT OPEN (MTC) . . . . . . . . . . . . . . . . . . 99
B105C–RECIRCULATION DOOR TRAVEL
RANGE TOO SMALL (ATC & MTC) . . . . . . . . 103
B105D–RECIRCULATION DOOR TRAVEL
RANGE TOO LARGE (ATC & MTC) . . . . . . . 105
HB
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