Had this problem before... recheck part#....is it for EATC or MANUAL...??? eatc on a manual will only go to half way...sounds like they gave you the wrong part....its a pain to replace wasn't it.....hope this helped you...GL
thanks for more info..sound like more of a control problem than actuator.. test the "RCC" (control unit)...with the ign ON,push - OFF/FLR buttons at the same time.....then AUTO .....wait for diag to begin....it will show numbers (flash-out codes) you need to note down....If it's ok the display will ALL light-up..to exit this turn the IGN. off, and it will go back to normal .... attached is the wire diagram for this system...be sure to test the LOOM and CONNECTORS (wire & contact) while your got it apart.... there is a publication for erratic operation (TSB 02-23-4) but the actuator does work in this case....
yes due to some model design changes its always been OFF/FLR, or OFF/DEF, then AUTO/ON....I will try to paste the diagram again...
sorry it would accept the picture
codes 24/25= a/c blend door actuator failure......follow these steps...
PINPOINT TEST A: A/C ELECTRONIC BLEND DOOR ACTUATOR INOPERATIVE, INTERMITTENT OR IMPROPER OPERATION
A1 CHECK ACTUATOR DRIVE Disconnect electrical connector C2044 from remote climate control module. Operate the A/C electronic blend door actuator in both directions using any 12-volt battery. The following pins can be jumped to use the vehicle battery. Make sure the ignition switch is in the RUN position.
Trial 1: Pin C2044 , Circuit 249 (DB/LG) to good ground, Pin C2044 , Circuit 250 (O) to 12 volts.
Trial 2: Pin C2044 , Circuit 250 (O) to good ground, Pin C2044 , Circuit 249 (DB/LG) to 12 volts.
Does the A/C electronic blend door actuator drive in both directions?
Yes
No
GO to A5 .
GO to A2 .
A2 CHECK CIRCUIT 249 (DB/LG) Using an ohmmeter connected to a known good ground, connect second lead to Pin C2044 , Circuit 249 (DB/LG) at remote climate control module connector.
Is resistance greater than 12 ohms?
Yes
No
GO to A3 .
SERVICE Circuit 249 (DB/LG) for short to ground. RESTORE vehicle. CLEAR codes. RETEST system.
A3 CHECK CIRCUIT 250 (O) Using an ohmmeter connected to a known good ground, connect second lead to Pin C2044 , Circuit 250 (O) at remote climate control module connector.
Is resistance greater than 12 ohms?
Yes
No
GO to A4 .
SERVICE Circuit 250 (O) for short to ground. RESTORE vehicle. CLEAR codes. RETEST system.
A4 CHECK CIRCUITS 249 (DB/LG) AND 250 (O) FOR OPEN Check vehicle wiring harness and connector resistance as shown below. Disconnect harness connector from remote climate control module and A/C electronic blend door actuator.
Remote Climate Control Module Connector C2044
A/C Electronic Blend Door Actuator Connector C2046
C2044, Circuit 250 (O)
to
C2046, Circuit 250 (O)
C2044, Circuit 249 (DB/LG)
to
C2046, Circuit 249 (DB/LG)Reconnect all harness connectors at end of this test.
Is there 5 ohms or less on both circuits?
Yes
No
REPLACE A/C electronic blend door actuator. RESTORE vehicle. RETEST system.
SERVICE Circuit 249 (DB/LG) or 250 (O) for open. RESTORE vehicle. RETEST system. CONT...................................
CONT>>>>>>>>>>>>>>>
A5 CHECK CIRCUITS 437 (Y/LG), 438 (R/W) AND 436 (R/LG) FOR OPEN Check vehicle wiring harness and connector resistance as shown below. Disconnect harness connector from remote climate control module and A/C electronic blend door actuator.
Remote Climate Control Module Connector C2044
A/C Electronic Blend Door Actuator Connector C2046
C2044, Circuit 437 (Y/LG)
to
C2046, Circuit 437 (Y/LG)
C2044, Circuit 438 (R/W)
to
C2046, Circuit 438 (R/W)
C2044, Circuit 436 (R/LG)
to
C2046, Circuit 436 (R/LG)Reconnect all harness connectors at end of this test.
Is there 5 ohms or less on all 3 circuits?
Yes
No
GO to A6 .
SERVICE Circuits 437 (Y/LG), 438 (R/W) or 436 (R/LG) for open. RESTORE vehicle. RETEST system.
A6 CHECK RESISTANCES Adjust the set temperature on the control head to 16°C (60°F) (wait for actuator to stop moving).
Using an ohmmeter connect to Pins C2044 and C2044 ( C2044 should be connected to the back of the remote climate control module).
Adjust the set temperature on the control head to 32°C (90°F).
Observe ohmmeter readings to verify a smooth change in resistance with no spikes or jumps.
Disconnect harness connector C2044 from rear of remote climate control module. Measure resistance between the pins shown below at the harness connector.
Pin C2044 , Circuit 438 (R/W) to Pin C2044 , Circuit 436 (R/LG) —5000-7000 ohms
Pin C2044 , Circuit 437 (Y/LG) to Pin C2044 , Circuit 436 (R/LG) —250-1500 ohms
Pin C2044 , Circuit 437 (Y/LG) to Pin C2044 , Circuit 438 (R/W) —3500-6000 ohms
Is there a smooth change in resistance and are all resistances within value given?
Yes
No
GO to A7 .
REPLACE A/C electronic blend door actuator. RESTORE vehicle. CLEAR codes. RETEST system.
A7 CHECK ACTUATOR POWER Turn ignition switch to RUN.
Disconnect harness connector C2046 from A/C electronic blend door actuator.
Using a voltmeter, connect one end to A/C electronic blend door actuator connector Pin C2046 , Circuit 249 (DB/LG) and the other end to Pin C2046 , Circuit 250 (O).
Adjust the set temperature on the control head to 16°C (60°F).
Verify an 8 to 12 volt reading on the voltmeter (may be + or - 8 to 12 volts depending on the polarity of the voltmeter leads).
Adjust the set temperature on the control head to 32°C (90°F).
Verify an 8 to 12 volt reading on the voltmeter (may be + or - 8 to 12 volts depending on the polarity of the voltmeter leads).
Is the voltage correct on both circuits?
Yes
No
GO to A8 .
REPLACE remote climate control module. RESTORE vehicle. CLEAR codes. RETEST system.
A8 CHECK REFERENCE VOLTAGES Disconnect connector C2046 from the A/C blend door actuator.
Using a voltmeter, connect one end to Pin C2046 , Circuit 438 (R/W) and the other end to Pin C2046 , Circuit 436 (R/LG).
Is there at least 4 volts present?
Yes
No
System Operational.
REPLACE remote climate control module. RESTORE vehicle. CLEAR codes. RETEST system. >>>
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Yes, it is the automatic climate control and is the correct actuator. the actuator doesnt move at all when i operate the ac. only way to get ac is to manually open blend door which sucks but doesnt cost a dime!. would like to put dash back together some day though!
auto climate control. neither new or old actuator moves at all. i have the ac rigged for now but looks like crap with cover off dash!
thanks a million for all the info. I have one problem however. I dont see and flr button on the control. Do u mean the button that puts the airflow to the floor? Also, the diagram is missing. I truly appreciate any help you can give me with this thing. It's driving me up one wall and down another! Thanks again.
thanks a million for all the info. I have one problem however. I dont see and flr button on the control. Do u mean the button that puts the airflow to the floor? Also, the diagram is missing. I truly appreciate any help you can give me with this thing. It's driving me up one wall and down another! Thanks again.
I will try to find that diadram online. Thanks again for the help. I'm going to try it out right now.
Ok, I got it to work. It ended up being the off and bi-level buttons. The codes 024 and 025 flashed. Is there a way for me to find out what the codes mean? Thanks again for the info.
thats a little bit to read! Thanks again for the mass of info! I will try it and let you know what I find. Thanks again.
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