fuse CHRYSLER VOYAGER 2001 Owner's Manual

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.
240
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.
245
AUTOMATIC TEMPERATURE CONTROL

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
246
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.
252
AUTOMATIC TEMPERATURE CONTROL

Symptom:
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE)
When Monitored and Set Condition:
FRONT MODE 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
MODE DOOR ACTUATOR
MODE DOOR LINKAGE
AT C
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the FRONT MODE 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 Mode Door Actuator.
By hand, attempt to rotate the Mode Door Actuator in both directions.
Did the Mode Door Actuator turn in either direction?All
Ye s®Replace the Mode Door Actuator.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
254
AUTOMATIC TEMPERATURE CONTROL

Symptom:
FRONT MODE DOOR TRAVEL TOO SMALL (ACTIVE)
When Monitored and Set Condition:
FRONT MODE 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 MODE DOOR
MODE DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the FRONT MODE 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.
Disconnect the Mode Door Actuator harness connector.
Connect a 12-volt Test Light between the Mode Door Actuator harness connector
cavities.
Turn the ignition on.
While monitoring the test light, turn the mode control knob in each position.
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
complete.
Perform BODY VERIFICATION TEST - VER 1.
256
AUTOMATIC TEMPERATURE CONTROL

Symptom:
PASS BLEND DOOR NOT RESPONDING (ACTIVE)
When Monitored and Set Condition:
PASS 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
PASSENGER BLEND DOOR DRIVER CIRCUIT (A) SHORTED TO GROUND
PASSENGER BLEND DOOR DRIVER CIRCUIT (B) SHORTED TO GROUND
PASSENGER BLEND DOOR DRIVER CIRCUITS (A) AND (B) SHORTED TOGETHER
PASSENGER BLEND DOOR DRIVER CIRCUIT (A) OPEN
PASSENGER BLEND DOOR DRIVER CIRCUIT (B) OPEN
AT C
PASSENGER BLEND DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Passenger Blend Door Driver (A)
circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 2
No®Repair the Passenger 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 ATC C1 harness connector.
Measure the resistance between ground and the Passenger Blend Door Driver (B)
circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 3
No®Repair the Passenger 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.
261
AUTOMATIC TEMPERATURE CONTROL

Symptom:
PASS BLEND DOOR TRAVEL TOO LARGE (ACTIVE)
When Monitored and Set Condition:
PASS 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
PASSENGER BLEND DOOR ACTUATOR
PASSENGER BLEND DOOR LINKAGE
AT C
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the PASSENGER 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 Passenger Blend Door Actuator.
By hand, attempt to rotate the Passenger Blend Door Actuator in both directions.
Did the blend door actuator turn in either direction?All
Ye s®Replace the Passenger Blend Door Actuator.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
263
AUTOMATIC TEMPERATURE CONTROL

Symptom:
PASS BLEND DOOR TRAVEL TOO SMALL (ACTIVE)
When Monitored and Set Condition:
PASS 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
PASSENGER BLEND DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the PASSENGER 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.
Disconnect the Passenger Blend Door Actuator harness connector.
Connect a 12-volt Test Light between the Passenger Blend Door Driver (A) and (B)
circuits in the Passenger Blend Door Actuator harness connector.
Turn the ignition on.
While monitoring the test light, turn the passenger 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
complete.
Perform BODY VERIFICATION TEST - VER 1.
265
AUTOMATIC TEMPERATURE CONTROL

Symptom:
REAR BLEND DOOR NOT RESPONDING (ACTIVE)
When Monitored and Set Condition:
REAR 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
REAR BLEND DOOR DRIVER CIRCUIT (A) SHORTED TO GROUND
REAR BLEND DOOR DRIVER CIRCUIT (B) SHORTED TO GROUND
REAR BLEND DOOR DRIVER CIRCUITS (A) AND (B) SHORTED TOGETHER
REAR BLEND DOOR DRIVER CIRCUIT (A) OPEN
REAR BLEND DOOR DRIVER CIRCUIT (B) OPEN
AT C
REAR BLEND DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Rear Blend Door Driver (A) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 2
No®Repair the Rear 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 Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Rear Blend Door Driver (B) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 3
No®Repair the Rear 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.
268
AUTOMATIC TEMPERATURE CONTROL