Chrysler Voyager. Manual — part 196

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

ATC

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

Yes

→ Return to the symptom list and choose the symptom.

With the DRBIII

t, reset the ATC after repair is complete.

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, press the driver blend control to change the setting
from lo to hi.
Note: Observe test light for approximately 30 seconds.
Does the test light start to flash and stay flashing?

All

Yes

→ Go To 3

No

→ Replace the ATC.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

211

AUTOMATIC TEMPERATURE CONTROL

TEST

ACTION

APPLICABILITY

3

Remove the Driver Blend Door Actuator. Rotate the blend door (door only). Note: This
should rotate approximately 45 degrees from stop to stop.
Does the blend door move smoothly in both directions?

All

Yes

→ Replace the Driver Blend Door Actuator.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Repair or replace the driver blend door as necessary.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

212

AUTOMATIC TEMPERATURE CONTROL

DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE) —

Continued

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 calculated 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 DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

213

AUTOMATIC TEMPERATURE CONTROL

Symptom:

EVAP TEMP SENSOR OPEN (ACTIVE)

When Monitored and Set Condition:

EVAP TEMP SENSOR OPEN (ACTIVE)

When Monitored:

With the ignition on and the IOD fuse installed. Also, during the

Cooldown Test.

Set Condition:

This DTC is displayed if the ATC detects an abnormally high voltage on

the evaporator temperature sensor signal. Evap Temp Sensor Open is also displayed as a
Cooldown Test Message if the ATC detects an abnormally high voltage on the evaporator
temperature sensor signal during the Cooldown Test.

POSSIBLE CAUSES

EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE

EVAPORATOR TEMP SENSOR SIGNAL CKT SHORTED TO BLOWER MOTOR CONTROL CKT

EVAP TEMP SENSOR SIGNAL CKT SHORTED TO REAR BLOWER MOTOR CONTROL CKT

ATC

EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN

SENSOR GROUND CIRCUIT OPEN

EVAPORATOR TEMPERATURE SENSOR

TEST

ACTION

APPLICABILITY

1

Turn the ignition off.
Disconnect the ATC C2 harness connector.
Turn the ignition on.
Measure the voltage of the Evaporator Temperature Sensor Signal circuit.
Is there any voltage present?

All

Yes

→ Repair the Evaporator Temperature Sensor Signal circuit for a

short to voltage.
With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 2

2

Turn the ignition off.
Disconnect the ATC C2 harness connector.
Measure the resistance between the Evaporator Temperature Sensor Signal circuit
and the Blower Motor Control circuit.
Is the resistance below 10K ohms?

All

Yes

→ Repair the Evaporator Temperature Sensor Signal circuit for a

short to the Blower Motor Control circuit.
With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 3

214

AUTOMATIC TEMPERATURE CONTROL