gschreff

2004 F150 Heritage, 4x4, 5.7

Can't get AC to come on. All I get is what you see in the attached images.

Thank you for your assistance.

Greg

BadFish523

Run it through a diagnostic test and see if it does anything. Also disconnect battery cables and reset the computer.

BadFish523

Here is a bunch of copy paste about the diagnostic self test.

ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE ON-DEMAND SELF-TEST

The EATC module on-demand self-test will retrieve on-demand (hard fault) DTCs only, it will not retrieve continuous DTCs. Continuous DTCs can be cleared when exiting the EATC module on-demand self-test. Make sure to retrieve continuous DTCs by carrying out the Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs procedure before clearing any continuous DTCs.

• The EATC module on-demand self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A diagnostic tool must be used to retrieve these concerns.
• The EATC module on-demand self-test will detect concerns in the system control functions and will display on-demand (hard fault) DTCs for concerns that are present during the self-test. The vehicle interior temperature should be between 4°C - 38°C (40°F - 100°F) when performing the self-test. If the temperatures are not within the specified ranges, false DTCs may be displayed.
• The self-test can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when the self-test is activated.
• To enter the self-test press the OFF and DEFROST buttons simultaneously and release, then press the AUTO button within two seconds . The display will show a flashing blower icon for 20 seconds , after which all vacuum fluorescent segments will be displayed if there are no on-demand DTCs present. If DTCs are present the EATC module will display "00 00" and then on-demand DTCs. Record all DTCs displayed.
• If any DTCs appear during the self-test, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given.
• To exit the self-test and retain all DTCs, press any button except DEFROST. The EATC module will exit the self-test and retain all DTCs.
• To exit the self-test and clear all DTCs, press the DEFROST button. The EATC module will exit the self-test and all DTCs will be cleared.
• Always exit the self-test before powering the system down (system turned OFF). Once the self-test is exited the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
• Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

CONTINUOUS CODES

ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE - RETRIEVE CONTINUOUS DTCS

The EATC module will retrieve only continuous (intermittent and hard) DTCs when carrying out this procedure.


Retrieval of continuous DTCs can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when retrieving continuous DTCs.
To retrieve continuous DTCs, press the OFF and DEFROST buttons simultaneously and release, then press the RECIRC button within two seconds . All vacuum fluorescent segments will be displayed if there are no continuous DTCs present. Continuous DTCs are indicated by the presence of the degrees Celsius symbol (°C) on the EATC module display. Record all DTCs displayed.
If any DTCs appear, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Trouble Code Descriptions
If a condition exists but no DTCs appear, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Diagnosis By Symptom
To exit and retain all continuous DTCs, press any button except DEFROST. The EATC module will exit the retrieved continuous DTCs mode and retain all continuous DTCs.
To exit and clear all continuous DTCs, press the DEFROST button. The EATC module will exit the retrieve continuous DTCs mode and all continuous DTCs will be cleared.
Always exit the procedure before powering the system down (system turned OFF). Once the procedure is exited the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Summers22

iTrader: (2)

Also you dont have a Heritage (97-03 F150 body style). Nor do you have a 5.7

Try unplugging and plugging the HVAC controls on the backside of the bezel several times.

joe mcmillan

Jon,
Google 2004 f150 Heritage - it was of the 1997 - 2003 body style.

Summers22

iTrader: (2)

Thats what I said.....he doesnt have an 04 Heritage F150....he has the new body style according to the dash bezel he showed pictures of.

joe mcmillan

Surprise yourself and google it.
The old body style was the 2004 F150 Heritage.

Summers22

iTrader: (2)

Holy crap man, thats what I said......can you not see the pictures he listed????? He has the new body style 04 up F150 not a 04 Heritage. He also doesnt have a 5.7 Hemi unless he swapped one in.

screamineagle

Bunch of troll feeding up in here. Stop feeding them and they will die off

Summers22

iTrader: (2)

Well I have a Heritage 07 with a 5.9