2001 CHRYSLER VOYAGER fuse

REAR MODE DOOR NOT RESPONDING (STORED)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
REAR MODE DOOR TRAVEL TOO LARGE (STORED)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
REAR MODE DOOR TRAVEL TOO SMALL (STORED)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
REAR MODE POT OPEN (STORED)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC reads the rear mode select switch value and it
is above 250 A/D counts.
REAR MODE POT SHORTED (STORED)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC reads the rear mode select switch value and it
is below 5 A/D counts.
RECIRC DOOR NOT RESPONDING (STORED)
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: This DTC is set when the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
RECIRC DOOR TRAVEL TOO LARGE (STORED)
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
RECIRC DOOR TRAVEL TOO SMALL (STORED)
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
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AUTOMATIC TEMPERATURE CONTROL
AC PRESSURE TOO HIGH (STORED) ÐContinued

Symptom:
DRIVER BLEND DOOR NOT RESPONDING (ACTIVE)
When Monitored and Set Condition:
DRIVER BLEND DOOR NOT RESPONDING (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
POSSIBLE CAUSES
DRIVER BLEND DOOR DRIVER CIRCUIT (A) SHORTED TO GROUND
DRIVER BLEND DOOR DRIVER CIRCUIT (B) SHORTED TO GROUND
DRIVER BLEND DOOR DRIVER CIRCUITS (A) AND (B) SHORTED TOGETHER
DRIVER BLEND DOOR DRIVER CIRCUIT (A) OPEN
DRIVER BLEND DOOR DRIVER CIRCUIT (B) OPEN
AT C
DRIVER BLEND DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the Driver Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Driver Blend Door Driver (A) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 2
No®Repair the Driver Blend Door Driver (A) circuit for a short to
ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Driver Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Driver Blend Door Driver (B) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 3
No®Repair the Driver Blend Door Driver (B) circuit for a short to
ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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AUTOMATIC TEMPERATURE CONTROL

Symptom:
DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE)
When Monitored and Set Condition:
DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
POSSIBLE CAUSES
CHECK THE ATC FOR DTCS
DRIVER BLEND DOOR ACTUATOR
DRIVER BLEND DOOR LINKAGE
AT C
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the DRIVER BLEND DOOR NOT RESPONDING DTC set?All
Ye s®Return to the symptom list and choose the symptom.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Turn the ignition off.
Remove the Driver Blend Door Actuator.
By hand, attempt to rotate the driver blend door motor in both directions.
Did the blend door actuator turn in either direction?All
Ye s®Replace the Driver Blend Door Actuator.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
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AUTOMATIC TEMPERATURE CONTROL

Symptom:
DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE)
When Monitored and Set Condition:
DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
POSSIBLE CAUSES
CHECK THE ATC FOR DTCS
AT C
OBSTRUCTED BLEND DOOR
DRIVER BLEND DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the DRIVER BLEND DOOR NOT RESPONDING DTC set?All
Ye s®Return to the symptom list and choose the symptom.
With the DRBIIIt, reset the ATC after repair/replacement is
completed.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Turn the ignition off.
Disconnect the Driver Blend Door Actuator harness connector.
Connect a 12-volt Test Light between the Driver Blend Door Actuator harness
connector cavities.
Turn the ignition on.
While monitoring the test light, turn the driver blend control knob from lo to hi.
Note: Observe test light for approximately 30 seconds.
Does the test light start to flash and stay flashing?All
Ye s®Go To 3
No®Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
completed.
Perform BODY VERIFICATION TEST - VER 1.
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AUTOMATIC TEMPERATURE CONTROL

Symptom:
EEPROM CHECKSUM ERROR (ACTIVE)
When Monitored and Set Condition:
EEPROM CHECKSUM ERROR (ACTIVE)
When Monitored: Ignition in RUN and IOD fuse installed after a battery disconnect.
Set Condition: This DTC is set if the calibrated check sum does not match the stored
value.
POSSIBLE CAUSES
ATC - EEPROM CHECKSUM ERROR
TEST ACTION APPLICABILITY
1 When this code is present, the ATC must be replaced.
View repair.All
Repair
Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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AUTOMATIC TEMPERATURE CONTROL

Symptom List:
FRONT IR SENSOR AND CONTROL HEAD MISMATCH (ACTIVE)
FRONT IR SENSOR CHANGE TOO LARGE (ACTIVE)
FRONT IR SENSOR HIGH (ACTIVE)
FRONT IR SENSOR LOW (ACTIVE)
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be FRONT IR SENSOR AND
CONTROL HEAD MISMATCH (ACTIVE).
When Monitored and Set Condition:
FRONT IR SENSOR AND CONTROL HEAD MISMATCH (ACTIVE)
When Monitored: Every 8 seconds with the ignition on.
Set Condition: This condition is set if the ATC does not receive the intake air temperature
response message within 8 seconds.
FRONT IR SENSOR HIGH (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC reads the Front IR Sensor value and it is above
250 A/D counts.
FRONT IR SENSOR LOW (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC reads the Front IR Sensor value and it is below
5 A/D counts.
POSSIBLE CAUSES
ATC REMOTE SENSOR
TEST ACTION APPLICABILITY
1 This DTC indicates a fault in the ATC Remote Sensor.
View repair.All
Repair
Replace the ATC Remote Sensor.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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Symptom List:
FRONT IR SENSOR NOT CALIBRATED (ACTIVE)
FRONT KEYBOARD FAULT (ACTIVE)
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be FRONT IR SENSOR NOT
CALIBRATED (ACTIVE).
When Monitored and Set Condition:
FRONT IR SENSOR NOT CALIBRATED (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC cannot read the IR sensor values or the IR
sensor values are not within a defined range of the HVAC air door motor counts.
POSSIBLE CAUSES
ATC - PROTECTED IGNITION CIRCUIT FAULT
KDB 2 CLOCK CIRCUIT SHORTED TO VOLTAGE
KDB 2 DATA CIRCUIT SHORTED TO GROUND
KDB 2 DATA CIRCUIT SHORTED TO VOLTAGE
PROTECTED IGNITION CIRCUIT OPEN
SENSOR RETURN CIRCUIT OPEN
KDB 2 CLOCK CIRCUIT SHORTED TO GROUND
KDB 2 DATA CIRCUIT OPEN
ATC - KDB 2 DATA CIRCUIT FAULT
ATC - SENSOR RETURN CIRCUIT FAULT
KDB 2 CLOCK CIRCUIT OPEN
ATC - KDB 2 CLOCK CIRCUIT FAULT
ATC REMOTE SENSOR
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Turn the ignition on.
Measure the voltage of the Protected Ignition circuit.
Is the voltage above 10.0 volts?All
Ye s®Go To 2
No®Go To 16
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AUTOMATIC TEMPERATURE CONTROL

Symptom:
FRONT MODE DOOR NOT RESPONDING (ACTIVE)
When Monitored and Set Condition:
FRONT MODE DOOR NOT RESPONDING (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
POSSIBLE CAUSES
MODE DOOR DRIVER CIRCUIT (A) SHORTED TO GROUND
MODE DOOR DRIVER CIRCUIT (B) SHORTED TO GROUND
MODE DOOR DRIVER CIRCUITS (A) AND (B) SHORTED TOGETHER
MODE DOOR DRIVER CIRCUIT (A) OPEN
MODE DOOR DRIVER CIRCUIT (B) OPEN
AT C
MODE DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Mode Door Driver (A) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 2
No®Repair the Mode Door Driver (A) circuit for a short to ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Mode Door Driver (B) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 3
No®Repair the Mode Door Driver (B) circuit for a short to ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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