Dodge Durango (HB). Manual - part 371

The ambient temperature sensor circuit can also be diagnosed using the following Sensor Test, and Sensor Circuit
Test. If the temperature sensor and circuit are confirmed to be OK, but the temperature display is inoperative or
incorrect, test the mini-trip computer (Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE/COMPASS/MINI-TRIP
COMPUTER - DIAGNOSIS AND TESTING).

SENSOR TEST

1. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Disconnect the

ambient temperature sensor harness connector.

2. Measure the resistance of the ambient temperature sensor. At - 40° C (- 40° F), the sensor resistance is 336

kilohms. At 55° C (130° F), the sensor resistance is 2.488 kilohms. The sensor resistance should read between
these two values. If OK, refer to Sensor Circuit Test in this group. If not OK, replace the faulty ambient temper-
ature sensor.

SENSOR CIRCUIT TEST

1. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Disconnect the

wire harness connectors from the ambient temperature sensor and the A/C-heater control.

2. Connect a jumper wire between the two terminals in the body half of the ambient temperature sensor harness

connector.

3. Check for continuity between the sensor return circuit and the ambient temperature sensor signal circuit cavities

of the A/C-heater control harness connector. There should be continuity. If OK, go to Step 4. If not OK, repair the
open sensor return circuit or ambient temperature sensor signal circuit to the ambient temperature sensor as
required.

4. Check for continuity between the ambient temperature sensor signal circuit cavity of the A/C-heater control har-

ness connector and a good ground. There should be no continuity. If OK, test the mini-trip computer (Refer to 8
- ELECTRICAL/OVERHEAD CONSOLE/COMPASS/MINI-TRIP COMPUTER - DIAGNOSIS AND TESTING). If
not OK, repair the shorted ambient temperature sensor signal circuit as required.

REMOVAL

1. Disconnect and isolate the battery negative cable.

2. Locate the ambient temperature sensor (1), on the

right side of the radiator yoke (2) behind the grille.

3. Disconnect the wire harness connector (3) from the

ambient temperature sensor connector receptacle.

4. Remove the one screw that secures the ambient

temperature sensor bracket to the radiator yoke.

5. Remove the ambient temperature sensor from the

radiator yoke.

OVERHEAD CONSOLE - SERVICE INFORMATION

8M - 37

INSTALLATION

1. Position the ambient temperature sensor (1) onto

the radiator yoke (2).

2. Install the screw that secures the ambient temper-

ature sensor to the radiator yoke. Tighten the
screw to 5.6 N·m (50 in. lbs.).

3. Connect the wire harness connector (3) to the

ambient temperature sensor (1).

4. Reconnect the negative battery cable.

UNIVERSAL TRANSMITTER

DESCRIPTION

On some models a Universal Transmitter transceiver is standard factory-installed equipment. The universal trans-
mitter transceiver is integral to the overhead console. The only visible component of the universal transmitter are the
three transmitter push buttons at the rear of the CMTC. The three universal transmitter push buttons can be easily
identified by sight.

Each of the three universal transmitter push buttons controls an independent radio transmitter channel. Each of
these three channels can be trained to transmit a different radio frequency signal for the remote operation of garage
door openers, motorized gate openers, home or office lighting, security systems or just about any other device that
can be equipped with a radio receiver in the 286 to 399 MegaHertz (MHz) frequency range for remote operation.
The universal transmitter is capable of operating systems using either rolling code or non-rolling code technology.

The universal transmitter cannot be repaired, and is available for service only as a unit. This unit includes the push
button switches and the plastic module.

DIAGNOSIS AND TESTING

UNIVERSAL TRANSMITTER

If the Universal Transmitter is inoperative, but the Electronic Vehicle Information Center (EVIC) is operating nor-
mally, see the owner’s manual in the vehicle glove box for instructions on training the Transmitter. Retrain the Trans-
mitter with a known good transmitter as instructed in the owner’s manual and test the Transmitter operation again.
If the unit is still inoperative, test the universal transmitter with Radio Frequency Detector special tool. If both the
Transmitter and the EVIC module are inoperative, refer to Electronic Vehicle Information Center Diagnosis and
Testing in this group for further diagnosis. For complete circuit diagrams, refer to Wiring Diagrams. as described
below:

1. Turn the Radio Frequency (RF) Detector ON. A “chirp” will sound and the green power LED will light. If the green

LED does not light, replace the battery.

2. Hold the RF detector within one inch of the TRAINED universal transmitter and press any of the transmitters

buttons.

8M - 38

OVERHEAD CONSOLE - SERVICE INFORMATION

3. The red signal detection LEDs will light and the tool will beep if a radio signal is detected. Repeat this test three

times.

STANDARD PROCEDURE

PROGRAMMING TRANSMITER CODES

CAUTION: Vehicle exhaust contains carbon monoxide, a dangerous gas. Do not run the vehicle’s exhaust
while training the transceiver. Exhaust gas can cause serious injury or death.

CAUTION: Your motorized door or gate will open and close while you are training the Universal Transceiver.
Do not train the transceiver if people or pets are in the path of the door or gate. A moving door or gate can
cause serious injury or death to people and pets or damage to objects.

1. Press and hold the two outer HomeLink buttons, and release only when the indicator light begins to flash (after

20 seconds). Do not hold the buttons for longer than 30 seconds and do not repeat step one to program a
second and/or third hand-held transmitter to the remaining two HomeLink buttons.

2. Position the end of your hand-held transmitter 1-3 inches (3-8 cm) away from the HomeLink buttons while keep-

ing the indicator light in view.

3. Simultaneously press and hold both the HomeLink button that you want to train and the hand-held transmitter

buttons. Do not release the buttons until step 4 has been completed.

4. The HomeLink indicator light will flash slowly and then rapidly after HomeLink successfully receives the fre-

quency signal from the hand-held transmitter. Release both buttons after the indicator light changes from the
slow to the rapid flash.

5. Release the buttons.

6. Press and hold the just trained HomeLink button and observe the indicator light. If the indicator light stays on

constantly, programming is complete and your device should activate when the HomeLink button is pressed
and released.

7. To program the remaining two HomeLink buttons, begin with

Programming

step two. Do not repeat step one.

8. If the indicator light blinks rapidly for two seconds and then turns to a constant light, continue with

(

Pro-

gramming

(

steps 6-8 to complete the programming of a rolling code equipped device (most commonly a garage

door opener).

9. At the garage door opener receiver (motor-head unit) in the garage, locate the

learn

smart

button. This can

usually be found where the hanging antenna wire is attached to the motor-head unit.

10. Firmly press and release the

learn

smart

button. (The name and color of the button may vary by manu-

facturer.)

11. There are 30 seconds in which to initiate step eight.

12. Return to the vehicle and firmly press, hold for two seconds and release the programmed HomeLink button.

Repeat the

(

press/hold/release

(

sequence a second time, and, depending on the brand of the garage door

opener (or other rolling code equipped device), repeat this sequence a third time to complete the programming.

13. HomeLink should now activate your rolling code equipped device.

ERASING TRANSMITTER CODES

Note: Individual channels cannot be erased. Erasing the transmitter codes will erase ALL programmed
codes.

To erase programming from the three buttons (individual buttons cannot be erased but can be

reprogrammed

note below), follow the step noted:

•

Press and hold the two outer HomeLink buttons until the indicator light begins to flash-after 20 seconds.
Release both buttons. Do not hold for longer that 30 seconds. HomeLink is now in the train (or learning)
mode and can be programmed at any time beginning with

Programming

(Refer to 8 - ELECTRICAL/

OVERHEAD CONSOLE/UNIVERSAL TRANSMITTER - STANDARD PROCEDURE).

OVERHEAD CONSOLE - SERVICE INFORMATION

8M - 39

REPROGAMMING TRANSMITTER CODES

CAUTION: Vehicle exhaust contains carbon monoxide, a dangerous gas. Do not run the vehicle’s exhaust
while training the transceiver. Exhaust gas can cause serious injury or death.

To program a device to HomeLink using a HomeLink button previously trained, follow these steps:

1. Press and hold the desired HomeLink button. Do NOT release the button.

2. The indicator light will begin to flash after 20 seconds. Without releasing the HomeLink button, proceed with

Programming

step 3

3. Press and hold the two outer HomeLink buttons, and release only when the indicator light begins to flash
(after 20 seconds). Do not hold the buttons for longer than 30 seconds and do not repeat step one to pro-
gram a second and/or third hand-held transmitter to the remaining two HomeLink buttons.

4. Position the end of your hand-held transmitter 1-3 inches (3-8 cm) away from the HomeLink buttons while
keeping the indicator light in view.

5. Simultaneously press and hold both the HomeLink button that you want to train and the hand-held trans-
mitter buttons. Do not release the buttons until step 4 has been completed.

6. The HomeLink indicator light will flash slowly and then rapidly after HomeLink successfully receives the
frequency signal from the hand-held transmitter. Release both buttons after the indicator light changes from
the slow to the rapid flash.

7. Release the buttons.

8. Press and hold the just trained HomeLink button and observe the indicator light. If the indicator light stays
on constantly, programming is complete and your device should activate when the HomeLink button is
pressed and released.

9. To program the remaining two HomeLink buttons, begin with

Programming

step two. Do not repeat step

one.

10. If the indicator light blinks rapidly for two seconds and then turns to a constant light, continue with

(

Programming

(

steps 6-8 to complete the programming of a rolling code equipped device (most commonly a

garage door opener).

11. At the garage door opener receiver (motor-head unit) in the garage, locate the

learn

smart

button.

This can usually be found where the hanging antenna wire is attached to the motor-head unit.

12. Firmly press and release the

learn

smart

button. (The name and color of the button may vary by

manufacturer.)

13. There are 30 seconds in which to initiate step eight.

14. Return to the vehicle and firmly press, hold for two seconds and release the programmed HomeLink
button. Repeat the

(

press/hold/release

(

sequence a second time, and, depending on the brand of the garage

door opener (or other rolling code equipped device), repeat this sequence a third time to complete the pro-
gramming.

15. HomeLink should now activate your rolling code equipped device.

8M - 40

OVERHEAD CONSOLE - SERVICE INFORMATION

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