Lincoln vs Cadillac Forums

(This is the forums archive - If you want to get back to the main site simply click the banner above and you will be taken to our homepage.)

Lincoln vs Cadillac Forums is the Ultimate Online Resource for Owners and Enthusiasts of American Luxury Cars. Feel free to browse through our archive - but make sure you make it back to our main site - Lincoln vs Cadillac Forums

Cadillac XLR : Cadillac CTS : Cadillac : 2005 Cadillac STS : Cadillac Forums : 2000 Lincoln LS : Lincoln Mark VIII : Lincoln Mark VII : Car Wax
Lincoln Town Car : Lincoln Air Suspension : Lincoln Continental : Lemon Law : Do It Yourself Car Repair : Lincoln vs Cadillac Forums : Mesothelioma

Back to the Archive Main Page

Pages: 1

Self Diagnostic

(Click here to view the original thread with full colors/images)

Posted by: Iwantmymarkback

Does anyone have the link, or know where I can find the self diacnostic for the A/C console for a mark viii?

Thanks

-Rick

Posted by: driller

Electronic Automatic Temperature Control Unit Self Test

1. Turn ignition switch to RUN position.

2. Push and release both OFF and FLOOR buttons simultaneously; then within two seconds, press and release the AUTO button.

3. Note: Display will be blank during testing.

After about 20 seconds, a code will appear in the window. Refer to the following Diagnostic Trouble Code Directory to identify the error for the proper diagnostic procedure:

01 Damaged EATC Module.
02 A/C air temperature control door cannot reach desired position.
03 Automatic temperature control sensor open.
04 A/C ambient air temperature sensor and bracket
05 A/C sunload sensor short.

Posted by: Iwantmymarkback

Thank you for getting this for me, but I have an error message of 155, and that doesnt seem to be on the list.

-Rick

Posted by: driller

Must be different on a Gen2 then.

Posted by: MaloriaN

My EATC Self test shows me error code 02 and 03

How can I fix this?

Posted by: driller

Quote:

Originally Posted by MaloriaN

My EATC Self test shows me error code 02 and 03

How can I fix this?

Error Code 02 = A/C air temperature control door cannot reach desired position.

PINPOINT TEST B: EATC CONTROL ASSEMBLY CONNECTOR AND BLEND DOOR ACTUATOR DIAGNOSIS

B2 CHECK EATC CONTROL OPERATION

l Disconnect both connectors from EATC control assembly and drive actuator in both directions using any 9-12 volt battery. The following pins can be jumped to utilize the vehicle battery. Ensure the ignition is in the RUN position. All pins are located on the LH side connector.

-- Trial 1: Pin 24 (57, BK) to Pin 22 (249 DB/LG)

-- Trial 2: Pin 24 (57, BK) to Pin 21 (250 O)

l Is actuator driven in both directions?

On-Board Diagnostic DTC 03 (Warm Air Discharge at 65°F or Cool Air Discharge at 85°F).

Possible Source(s):
§ Sensor open or shorted.

Action(s) to Take:
§ Disconnect wire harness connector at in-vehicle temperature sensor. Measure resistance across sensor terminals and compare with specifications in the following In-Vehicle Sensor Resistance Table. If resistance is out of specifications, replace sensor. If sensor is ok, proceed to "Wire harness open or shorted".

Possible Source(s):
§ Wire harness open or shorted.

Action(s) to Take:
§ Disconnect battery cables. Disconnect wire harness connector from sensor and disconnect both connectors from EATC control assembly. Check for continuity and for possible shorting between the two wires (Pin 2 (470 PK/BK) and Pin 17 (790 W/O)). Service as necessary. Reconnect wire harness and battery cables.

Loans:Remortgages:Proxy:Ringtones:Debt Consolidation Loans