Chrysler Voyager. Manual — part 203

TEST

ACTION

APPLICABILITY

3

Remove the Passenger 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 Passenger 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 Passenger Blend Door as necessary.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

239

AUTOMATIC TEMPERATURE CONTROL

PASS BLEND DOOR TRAVEL TOO SMALL (ACTIVE) —

Continued

Symptom List:

PCI BUS SHORTED HIGH (ACTIVE)
PCI BUS SHORTED LOW (ACTIVE)

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be PCI BUS SHORTED HIGH
(ACTIVE).

When Monitored and Set Condition:

PCI BUS SHORTED HIGH (ACTIVE)

When Monitored:

With the ignition on.

Set Condition:

This DTC is set if the ATC detects a short to voltage on the PCI Bus circuit.

PCI BUS SHORTED LOW (ACTIVE)

When Monitored:

With the ignition on.

Set Condition:

This DTC is set if the ATC detects a short to ground on the PCI Bus circuit.

POSSIBLE CAUSES

DTC CONDITION

TEST

ACTION

APPLICABILITY

1

NOTE: For this code to be active, the DRB will not be able to communicate
with any modules on the vehicle (except the PCM/ECM).
NOTE: If this code is set and active it will be necessary to replace the
Automatic Temperature Control Module for displaying a false DTC.
NOTE: If this code is NOT active do not perform this test.
If there are no possible causes remaining, view repair.

All

Repair

Replace the ATC.
With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

240

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

ATC

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

Yes

→ Go To 2

No

→ Repair the Rear Blend Door Driver (A) circuit for a short to

ground.
With the DRBIII

t, reset the ATC after repair 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

Yes

→ Go To 3

No

→ Repair the Rear Blend Door Driver (B) circuit for a short to

ground.
With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

241

AUTOMATIC TEMPERATURE CONTROL

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connectors.
Measure the resistance between the Rear Blend Door Driver (A) and (B) circuits.
Is the resistance above 100k ohms?

All

Yes

→ Go To 4

No

→ Repair the Rear Blend Door Driver (A) and (B) circuits for a short

together.
With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

4

Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Rear Blend Door Driver (A) circuit.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 5

No

→ Repair the Rear Blend Door Driver (A) circuit for an open.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

5

Turn the ignition off.
Disconnect the Rear Blend Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Rear Blend Door Driver (B) circuit.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 6

No

→ Repair the Rear Blend Door Driver (B) circuit for an open.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

6

Turn the ignition off.
Disconnect the ATC C1 harness connector.
Measure the resistance between the Rear Blend Door Driver (A) and (B) circuits.
Is the resistance between 26.0 and 46.0 ohms?

All

Yes

→ Replace the ATC.

With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 7

7

If there are no possible causes remaining, view repair.

All

Repair

Replace the Rear Blend Door Actuator.
With the DRBIII

t, reset the ATC after repair is complete.

Perform BODY VERIFICATION TEST - VER 1.

242

AUTOMATIC TEMPERATURE CONTROL

REAR BLEND DOOR NOT RESPONDING (ACTIVE) —

Continued