Dodge Durango (HB). Manual — part 1452
HEATING & AIR CONDITIONING
TABLE OF CONTENTS
page
page
HVAC - ELECTRICAL DIAGNOSTICS. . . . . . . . . . . . 1
HVAC - SERVICE INFORMATION . . . . . . . . . . . . 322
HVAC - ELECTRICAL DIAGNOSTICS
TABLE OF CONTENTS
page
page
HVAC - ELECTRICAL DIAGNOSTICS
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
B102E–REAR BLEND REQUEST INPUT
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . . . 9
B102E–REAR BLEND REQUEST INPUT
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . . 13
B102F–REAR BLEND REQUEST INPUT
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . . 17
B102F–REAR BLEND REQUEST INPUT
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . . 22
CIRCUIT/PERFORMANCE (ATC) . . . . . . . . . . 28
CIRCUIT/PERFORMANCE (MTC) . . . . . . . . . . 29
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . . 30
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . . 38
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . . 43
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . . 46
CIRCUIT OPEN (ATC) . . . . . . . . . . . . . . . . . . 49
CIRCUIT OPEN (MTC) . . . . . . . . . . . . . . . . . . 53
RANGE TOO SMALL (ATC & MTC) . . . . . . . . 57
B103F–REAR MODE DOOR TRAVEL RANGE
TOO LARGE (ATC & MTC) . . . . . . . . . . . . . . . 59
TRAVEL RANGE TOO SMALL (ATC & MTC) . . 61
TRAVEL RANGE TOO LARGE (ATC &
MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
B104C–BLEND DOOR CONTROL CIRCUIT/
PERFORMANCE (ATC) . . . . . . . . . . . . . . . . . 65
B104C–BLEND DOOR CONTROL CIRCUIT/
PERFORMANCE (ACTIVE) (MTC) . . . . . . . . . 66
B104D–BLEND DOOR CONTROL CIRCUIT
LOW (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . 67
B104D–BLEND DOOR CONTROL CIRCUIT
LOW (MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . 71
B104E–BLEND DOOR CONTROL CIRCUIT
HIGH (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . 75
B104E–BLEND DOOR CONTROL CIRCUIT
HIGH (MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . 78
B104F–BLEND DOOR CONTROL CIRCUIT
OPEN (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . 81
B104F–BLEND DOOR CONTROL CIRCUIT
OPEN (MTC) . . . . . . . . . . . . . . . . . . . . . . . . . 85
B105A–RECIRCULATION DOOR CONTROL
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . . 89
B105A–RECIRCULATION DOOR CONTROL
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . . 92
B105B–RECIRCULATION DOOR CONTROL
CIRCUIT OPEN (ATC) . . . . . . . . . . . . . . . . . . 95
B105B–RECIRCULATION DOOR CONTROL
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
HEATING & AIR CONDITIONING
24 - 1
B105F–CLIMATE CONTROL MOTOR(S)
COMMON 1 CONTROL CIRCUIT LOW
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
B105F–CLIMATE CONTROL MOTOR(S)
COMMON 1 CONTROL CIRCUIT LOW
(MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
CONTROL CIRCUIT LOW (ATC) . . . . . . . . . . 119
CONTROL CIRCUIT LOW (MTC) . . . . . . . . . 122
SENSOR INTERNAL (ATC) . . . . . . . . . . . . . . 125
CONTROL SYSTEM PERFORMANCE
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
B1001–A/C SWITCH REQUEST INPUT
CIRCUIT LOW (ATC & MTC) . . . . . . . . . . . . 129
B1004–PANEL MODE SWITCH REQUEST
INPUT CIRCUIT LOW (ATC) . . . . . . . . . . . . . 130
B1007–BI-LEVEL SWITCH REQUEST INPUT
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 131
B1010–MIX SWITCH REQUEST INPUT
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 132
INPUT CIRCUIT LOW (ATC) . . . . . . . . . . . . . 133
B1016–REAR DEFROST SWITCH REQUEST
INPUT CIRCUIT LOW (ATC & MTC) . . . . . . . 134
B1019–TEMP UP SWITCH REQUEST INPUT
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 135
REQUEST INPUT CIRCUIT LOW (ATC) . . . . 136
B1025–BLOWER SPEED DOWN SWITCH
REQUEST INPUT CIRCUIT LOW (ATC) . . . . 137
REQUEST INPUT CIRCUIT/
PERFORMANCE (ATC) . . . . . . . . . . . . . . . . 138
B1031–EVAPORATOR FIN TEMPERATURE
SENSOR CIRCUIT LOW (ATC) . . . . . . . . . . . 144
B1031–EVAPORATOR FIN TEMPERATURE
SENSOR CIRCUIT LOW (MTC) . . . . . . . . . . 148
B1032–EVAPORATOR FIN TEMPERATURE
SENSOR CIRCUIT HIGH (ATC) . . . . . . . . . . 152
B1032–EVAPORATOR FIN TEMPERATURE
SENSOR CIRCUIT HIGH (MTC) . . . . . . . . . . 157
B1034–INFRARED TEMPERATURE SENSOR
INPUT CIRCUIT LOW . . . . . . . . . . . . . . . . . . 162
B1035–INFRARED TEMPERATURE SENSOR
INPUT CIRCUIT HIGH . . . . . . . . . . . . . . . . . 163
B1038–AUTO SWITCH REQUEST INPUT
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 164
B1040–PANEL MODE DOOR 1 CONTROL
CIRCUIT/PERFORMANCE (ATC) . . . . . . . . . 165
B1040–PANEL MODE DOOR 1 CONTROL
CIRCUIT/PERFORMANCE (MTC) . . . . . . . . . 166
B1041–PANEL MODE DOOR 1 CONTROL
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 167
B1041–PANEL MODE DOOR 1 CONTROL
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . 171
B1042–PANEL MODE DOOR 1 CONTROL
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . 175
B1042–PANEL MODE DOOR 1 CONTROL
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . 178
B1043–PANEL MODE DOOR 1 CONTROL
CIRCUIT OPEN (ATC) . . . . . . . . . . . . . . . . . 181
B1043–PANEL MODE DOOR 1 CONTROL
CIRCUIT OPEN (MTC) . . . . . . . . . . . . . . . . . 185
B1044–PANEL MODE DOOR 1 TRAVEL
RANGE TOO SMALL (ATC & MTC) . . . . . . . . 189
B1045–PANEL MODE DOOR 1 TRAVEL
RANGE TOO LARGE (ATC & MTC) . . . . . . . 191
CONTROL CIRCUIT/PERFORMANCE
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
CONTROL CIRCUIT/PERFORMANCE
(MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
CONTROL CIRCUIT LOW (ATC) . . . . . . . . . . 195
CONTROL CIRCUIT LOW (MTC) . . . . . . . . . 199
CONTROL CIRCUIT HIGH (ATC) . . . . . . . . . 203
CONTROL CIRCUIT HIGH (MTC) . . . . . . . . . 206
CONTROL CIRCUIT OPEN (ATC) . . . . . . . . . 209
CONTROL CIRCUIT OPEN (MTC) . . . . . . . . 213
B1050–BLEND DOOR TRAVEL RANGE TOO
SMALL (ATC & MTC) . . . . . . . . . . . . . . . . . . 217
B1051–BLEND DOOR TRAVEL RANGE TOO
LARGE (ATC & MTC) . . . . . . . . . . . . . . . . . . 219
CIRCUIT/PERFORMANCE (ATC) . . . . . . . . . 221
CIRCUIT/PERFORMANCE (MTC) . . . . . . . . . 221
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 222
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . 230
CIRCUIT HIGH (ATC) . . . . . . . . . . . . . . . . . . 234
CIRCUIT HIGH (MTC) . . . . . . . . . . . . . . . . . 237
CIRCUIT OPEN (ATC) . . . . . . . . . . . . . . . . . 240
CIRCUIT OPEN (MTC) . . . . . . . . . . . . . . . . . 244
RANGE TOO SMALL (ATC & MTC) . . . . . . . . 248
RANGE TOO LARGE (ATC & MTC) . . . . . . . 250
B1058–RECIRCULATION DOOR CONTROL
CIRCUIT/PERFORMANCE (ATC) . . . . . . . . . 252
B1058–RECIRCULATION DOOR CONTROL
CIRCUIT/PERFORMANCE (MTC) . . . . . . . . . 253
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HVAC - ELECTRICAL DIAGNOSTICS
HB
B1059–RECIRCULATION DOOR CONTROL
CIRCUIT LOW (ATC) . . . . . . . . . . . . . . . . . . 254
B1059–RECIRCULATION DOOR CONTROL
CIRCUIT LOW (MTC) . . . . . . . . . . . . . . . . . . 258
B1060–CLIMATE CONTROL MOTOR(S)
COMMON 1 CONTROL CIRCUIT HIGH
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
B1060–CLIMATE CONTROL MOTOR(S)
COMMON 1 CONTROL CIRCUIT HIGH
(MTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
B1063–CLIMATE CONTROL MOTOR(S)
COMMON 2 CONTROL CIRCUIT LOW
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
B1064–CLIMATE CONTROL MOTOR(S)
COMMON 2 CONTROL CIRCUIT HIGH
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
B1067–CLIMATE CONTROL MOTOR(S)
COMMON 3 CONTROL CIRCUIT LOW
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
B1068–CLIMATE CONTROL MOTOR(S)
COMMON 3 CONTROL CIRCUIT HIGH
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
B1070–REAR BLOWER CONTROL CIRCUIT
HIGH (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . 282
B1079–CLIMATE CONTROL COOL DOWN
TEST EXCESSIVE TIME (ATC & MTC) . . . . . 286
CONTROL CIRCUIT OPEN (ATC) . . . . . . . . . 288
CONTROL CIRCUIT OPEN (MTC) . . . . . . . . 292
PERFORMANCE (ATC & MTC) . . . . . . . . . . . 296
INTERNAL (ATC & MTC) . . . . . . . . . . . . . . . 298
B2310–REAR WASHER SWITCH INPUT
CIRCUIT LOW (ATC & MTC) . . . . . . . . . . . . 299
. . . . . . . . . . . . . . 300
. . . . . . . . . . . . . . 303
FRONT CONTROL MODULE (ATC & MTC) . 306
CLUSTER/CCN (ATC & MTC) . . . . . . . . . . . . 307
U0156–LOST COMMUNICATION WITH EOM
(ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
DTC SET DURING ROUTINE - TEST NOT
PASSED (ATC & MTC) . . . . . . . . . . . . . . . . . 309
NOT RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
REFRIGERANT TEMPERATURE SENSOR
ERROR (ATC & MTC) . . . . . . . . . . . . . . . . . . 311
HVAC - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
HB
HVAC - ELECTRICAL DIAGNOSTICS
24 - 3
B100A–RECIRCULATION SWITCH REQUEST INPUT CIRCUIT LOW (ATC)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
If the Recirculation mode switch is stuck in a pushed position for more than two minutes. This DTC has a
maturing time of two minutes and a de-maturing time of two seconds. If the DTC’s status changes from active
to stored it will stay in memory for 100 ignition cycles.
Possible Causes
OBJECT HOLDING SWITCH IN A PUSHED POSITION
A/C HEATER CONTROL
Theory of Operation
The switch input changes when the switch is pushed down. An active DTC indicates that the switch is stuck in a
pushed position. A stored DTC indicates that the switch was stuck in a pushed position for more than two minutes,
but has since returned to its normal state.
NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC
is stored. Refer to HVAC System Test (ATC) for stored DTC test procedures.
Diagnostic Test
1.
INSPECT FOR OBJECT HOLDING SWITCH IN A PUSHED POSITION
Inspect the A/C Heater Control for an object holding the switch in a pushed position. If present, remove the object.
Turn the ignition on.
With the scan tool, erase HVAC DTCs.
Turn the ignition off, wait 10 seconds, and then turn the ignition on.
Wait two minutes, then with the scan tool, read HVAC DTCs.
Does the scan tool display active: B100A–RECIRCULATION SWITCH REQUEST INPUT CIRCUIT LOW?
Yes
>> Replace the A/C Heater Control in accordance with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1).
No
>> Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1).
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HVAC - ELECTRICAL DIAGNOSTICS
HB
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