thanks guys for the help. now i need help with these.I tried the fuse pull and the code rest, but they came right back on as soon as i flicked to the next code. thanks again

B0365 Right Actuator Feedback Short to GND
B0367 Right Actuator Feedback Open
B0441 Left Actuator Out of Range
B0446 Right Actuator Out of Range

P0650 Malfunction Indicator Lamp (MIL) Control Circuit

U1176 Loss of Communications with RFA

 

Help

 

Did you actually push and hold the "reset" button for each code? What are the failing indictations that you are seeing in the car?

 

Ttt

 

yes i did

 

Sorry for taking so long to come back to this...super busy here at work. Next in line would be all the fuses of course. Battery voltage needs to be verified that its above 12.5vdc although thats a long shot in this case. The HVAC controller sounds like its having issues and frankly, I know nothing about them...so a TTT for you so someone else with more knowledge in this area will see your post. I remember something about a resync procedure for the controller, but I don't know what it is. Are you able to control any of the air doors within the hvac?

 

Still need help

 

Still need input

 

Ttt

 

Have you checked the appropriate fuses as already suggested?

 

yes that is done,

 

Ttt

 

Those codes can signal a damper door motor is bad. The actuator motor adjusts the HVAC air flow according to the mode setting of the AC/Heater/Defrost

 

So what do I do? Change the damper on the left or cahnge the hvac? I did have my have modded to the led lights, maybe the passenger side went bad?

 

Ttt

 

Still. Need more input please

 

Ttt

 

Read,HTH
--------------------------------------------------------------

DTC B0365 Right Actuator Feedback Short to GND




Circuit Description
The HVAC control head receives a RH electric actuator position signal from the RH electric actuator. The RH electric actuator position sensor is a potentiometer that is tied to a 5 volt reference source through CKT 1791 and to ground through CKT 1798, both from the HVAC control head. The variable output from the potentiometer feeds back a position signal through CKT 1646 to a pull-up resistor located in the HVAC control head. This signal is used to determine the necessary drive signal to the RH electric actuator motor to provide the proper air mix door position. This value is stored in the Keep Alive Memory (KAM) portion of the HVAC control head.

Conditions for Setting the DTC
With the ignition in the ON position, CKT 1646 is checked continuously.
CKT 1646 stays at or near 0 volts.
Action Taken When the DTC Sets
The HVAC control head stores a DTC B0365 in memory.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
Using the IPC clearing feature.
Using a scan tool.
A history DTC will clear after 50 consecutive ignition cycles if the conditions for the fault is no longer present.
Diagnostic Aids
If the DTC is a history or an intermittent. Try to perform the tests shown while "wiggling" wiring and connectors, this can often cause the malfunction to appear.
Visually inspect sensor connector and harness for damage, corrosion or water intrusion.
Check for adequate terminal tension, mis-routed harness, rubbed through wire insulation, and broken wire inside insulation.
Install a scan tool to the diagnostic link connector. Turn the ignition switch to the ON position. Select the OUTPUT CONTROL screen in HVAC special functions. Use the MISCELLANEOUS TEST screen to manually drive the RH electric actuator with the scan tool from fully open to fully closed. Monitor the RH MIX MTR POSITION FEEDBACK with the scan tool when this is done. A normal position feedback signal should range between 0-255 counts as the electric actuator is being moved.
-------------------------------------------------------------------------


DTC B0367 Right Actuator Feedback Open




Circuit Description
The HVAC control head receives a RH electric actuator position signal from the RH electric actuator. The RH electric actuator position sensor is a potentiometer that is tied to a 5 volt reference source through CKT 1791 and to ground through CKT 1798, both from the HVAC control head. The variable output from the potentiometer feeds back a position signal through CKT 1646 to a pull-up resistor located in the HVAC control head. This signal is used to determine the necessary drive signal to the RH electric actuator motor to provide the proper air mix door position. This value is stored in the Keep Alive Memory (KAM) portion of the HVAC control head.

Conditions for Setting the DTC
With the ignition in the ON position, CKT 1646 is checked continuously.
CKT 1646 stays at 4.5 volts or higher.
Action Taken When the DTC Sets
The HVAC control head stores a DTC B0367 in memory.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
Using the IPC clearing feature.
Using a scan tool.
A history DTC will clear after 50 consecutive ignition cycles if the conditions for the fault is no longer present.
Diagnostic Aids
If the DTC is a history or an intermittent. Try to perform the tests shown while "wiggling" wiring and connectors, this can often cause the malfunction to appear.
Visually inspect sensor connector and harness for damage, corrosion or water intrusion.
Check for adequate terminal tension, mis-routed harness, rubbed through wire insulation, and broken wire inside insulation.
Install a scan tool to the diagnostic link connector. Turn the ignition switch to the ON position. Select the OUTPUT CONTROL screen in HVAC special functions. Use the MISCELLANEOUS TEST screen to manually drive the RH electric actuator with the scan tool from fully open to fully closed. Monitor the RH MIX MTR POSITION FEEDBACK with the scan tool when this is done. A normal position feedback signal should range between 0-255 counts as the electric actuator is being moved.
--------------------------------------------------------------------


DTC B0441 Left Actuator Out of Range




Circuit Description
The HVAC control head receives a LH electric actuator position signal from the LH electric actuator. The LH electric actuator position sensor is a potentiometer that is tied to a 5 volt reference source through CKT 1791 and to ground through CKT 1798, both from the HVAC control head. The variable output from the potentiometer feeds back a position signal through CKT 733 to a pull-up resistor located in the HVAC control head. This signal is used to determine the necessary drive signal to the LH electric actuator motor to provide the proper air mix door position. This value is stored in the Keep Alive Memory (KAM) portion of the HVAC control head.

When the HVAC control head is first connected to power (or the battery connection is established), the system will perform an initialization routine lasting approximately 60 seconds. During this routine, both RH and LH electric actuators will cycle full travel in both directions learning the end positions. Position feedback readings are sent back to the HVAC control head and compared to a range of acceptable end readings. If during initialization the position feedback readings are not within the acceptable range, a diagnostic code will be set. If the position feedback readings reach values of 0-5 counts or 250-255 counts, the HVAC control head will then interpret the reading as a "feedback-short" or "feedback-open" condition respectively. NOTE: Feedback-short or feedback-open conditions can occur due to electric actuators being initialized while not being attached to the HVAC module case.

Conditions for Setting the DTC
A damaged or bound up temperature door mechanism.
Improper alignment of the temperature door after electric actuator replacement.
The electric actuator has not been initialized after replacement.
During initialization, the position feedback reading is not within an acceptable range.
Action Taken When the DTC Sets
The HVAC control head stores a DTC B0441 in memory.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
Using the IPC clearing feature.
Using a scan tool.
A history DTC will clear after 50 consecutive ignition cycles if the conditions for the fault is no longer present.
Diagnostic Aids
If the DTC is a history or an intermittent. Try to perform the tests shown while "wiggling" wiring and connectors, this can often cause the malfunction to appear.
Visually inspect sensor connector and harness for damage, corrosion or water intrusion.
Check for adequate terminal tension, mis-routed harness, rubbed through wire insulation, and broken wire inside insulation.
Install a scan tool to the diagnostic link connector. Turn the ignition switch to the ON position. Select the OUTPUT CONTROL screen in HVAC special functions. Use the MISCELLANEOUS TEST screen to manually drive the LH electric actuator with the scan tool from fully open to fully closed. Monitor the LH MIX MTR POSITION FEEDBACK with the scan tool when this is done. A normal position feedback signal should range between 0-255 counts as the electric actuator is being moved.
-------------------------------------------------------------------


DTC B0446 Right Actuator Out of Range




Circuit Description
The HVAC control head receives a RH electric actuator position signal from the RH electric actuator. The RH electric actuator position sensor is a potentiometer that is tied to a 5 volt reference source through CKT 1791 and to ground through CKT 1798, both from the HVAC control head. The variable output from the potentiometer feeds back a position signal through CKT 1646 to a pull-up resistor located in the HVAC control head. This signal is used to determine the necessary drive signal to the RH electric actuator motor to provide the proper air mix door position. This value is stored in the Keep Alive Memory (KAM) portion of the HVAC control head.

When the HVAC control head is first connected to power (or the battery connection is established), the system will perform an initialization routine lasting approximately 60 seconds. During this routine, both RH and LH electric actuators will cycle full travel in both directions learning the end positions. Position feedback readings are sent back to the HVAC control head and compared to a range of acceptable end readings. If during initialization the position feedback readings are not within the acceptable range, a diagnostic code will be set. If the position feedback readings reach values of 0-5 counts or 250-255 counts, the HVAC control head will then interpret the reading as a "feedback-short" or "feedback-open" condition respectively. NOTE: Feedback-short or feedback-open conditions can occur due to electric actuators being initialized while not being attached to the HVAC module case.

Conditions for Setting the DTC
A damaged or bound up temperature door mechanism.
Improper alignment of the temperature door after electric actuator replacement.
The electric actuator has not been initialized after replacement.
During initialization, the position feedback reading is not within an acceptable range.
Action Taken When the DTC Sets
The HVAC control head stores a DTC B0446 in memory.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
Using the IPC clearing feature.
Using a scan tool.
A history DTC will clear after 50 consecutive ignition cycles if the conditions for the fault is no longer present.
Diagnostic Aids
If the DTC is a history or an intermittent. Try to perform the tests shown while "wiggling" wiring and connectors, this can often cause the malfunction to appear.
Visually inspect sensor connector and harness for damage, corrosion or water intrusion.
Check for adequate terminal tension, mis-routed harness, rubbed through wire insulation, and broken wire inside insulation.
Install a scan tool to the diagnostic link connector. Turn the ignition switch to the ON position. Select the OUTPUT CONTROL screen in HVAC special functions. Use the MISCELLANEOUS TEST screen to manually drive the RH electric actuator with the scan tool from fully open to fully closed. Monitor the RH MIX MTR POSITION FEEDBACK with the scan tool when this is done. A normal position feedback signal should range between 0-255 counts as the electric actuator is being moved.
------------------------------------------------------------


DTC P0650 Malfunction Indicator Lamp (MIL) Control Circuit




Circuit Description
A voltage is supplied directly to the malfunction indicator lamp (MIL). The powertrain control module (PCM) controls the lamp by grounding the control circuit via an internal switch called a driver. The primary function of the driver is to supply the ground for the component being controlled. Each driver has a fault line which is monitored by the PCM. When the PCM is commanding a component ON, the voltage of the control circuit should be near 0 volts. When the PCM is commanding the control circuit to a component OFF, the voltage potential of the circuit should be near battery voltage. If the fault detection circuit senses a voltage other than what is expected, the fault line status will change causing the DTC to set.

Conditions for Running the DTC
The engine speed is greater than 600 RPM.
Ignition voltage greater than 6.0 volts but less than 16 volts.
Conditions for Setting the DTC
The PCM detects that the commanded state of the driver and the actual state of the control circuit do not match.
All above conditions exist for a minimum of 10.0 seconds.
Action Taken When the DTC Sets
The PCM will not command the MIL ON. The PCM stores DTC P0650 in memory when the diagnostic runs and fails.
The PCM records the conditions present at the time the diagnostic fails to the Freeze Frame.
Conditions for Clearing the MIL/DTC
A last test failed, or the current DTC, clears when the diagnostic runs and does not fail.
A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
Use a scan tool in order to clear the MIL/DTC.
Diagnostic Aids
If the ignition feed circuit is suspected of being open, check if other bulbs on that circuit illuminate.
Using Freeze Frame and/or Failure Records data may aid in locating an intermittent condition. If the DTC cannot be duplicated, the information included in the Freeze Frame and/or Failure Records data can be useful in determining how many miles since the DTC set. The Fail Counter and Pass Counter can also be used to determine how many ignition cycles the diagnostic reported a pass and/or a fail. Operate vehicle within the same Freeze Frame conditions (RPM, load, vehicle speed, temperature etc.) that were noted. This will isolate when the DTC failed.
---------------------------------------------------------------------


DTC U1176 Loss of Communications with RFA




Circuit Description
The serial data circuit is used to communicate information between each module connected to the serial data line. Each module is assigned a specific recognition code (source ID). This code is used to identify which module is communicating on the serial data line. Modules communicate with others by periodically sending messages on the serial data line. These messages contains specific information (or commands) a system requires to function properly. When a module receives a message it also learns the source ID of the system that sent it. This source ID is used to determine which module actually sent the message and for State of Health (SOH) monitoring. SOH monitoring determines if a module is unable to communicate properly. Modules periodically send a SOH message to each other containing their source ID. If a system fails to receive a SOH message from a module that it communicates with, then a DTC identifying what module did not respond will set. Any module that also cannot communicate properly, will also store the appropriate communication DTC that was assigned to that module.

Conditions for Setting the DTC
The Instrument Panel Cluster (IPC) sends out a State of Health (SOH) message to the Remote Function Actuation (RFA) system, and no SOH message response was sent back.
Condition must be present for 5 seconds.
Action Taken When the DTC Sets
Stores a DTC U1176 in the IPC memory.
No driver warning message will be displayed for this DTC.
If the IPC is unable to receive and/or send data, the IPC may display certain messages the are associated with certain systems that it cannot communicate with.
Conditions for Clearing the DTC
This DTC requires an ignition cycle in order to change from current to history.
The IPC receives a SOH message back from the RFA system.
A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.
Use the IPC clearing DTCs feature.
Use a scan tool.
Diagnostic Aids
If the problem is an intermittent loss of communications. Carefully inspect the serial data line and related components for the following intermittent conditions:
There is an intermittent open or short (to ground or voltage) in the serial data line.
Intermittent loss of communication with the RFA system.
Damaged or loose star connector terminals.
If the serial data line is shorted to ground or shorted to voltage, all systems connected to the same serial data line will not be able to communicate properly. Systems capable of storing loss of communication DTCs (DTCs with the letter U as a prefix) will have these codes stored in their memory. If a DTC U1176 is stored in the IPC, use a scan tool to monitor communications with the RFA system. If the IPC loses communications with the RFA system at any time, the IPC will store a DTC U1176. Test drive the vehicle while using a scan tool to monitor communications with the RFA system can assist in diagnosing an intermittent malfunction. Check for an open in the serial data line between only the IPC and the RFA system. The IPC and RFA system must also be checked for intermittent operation due to a loss of power or ground. After repairing a DTC U1176, clear all DTCs from all systems capable of storing this DTC.
Communication DTCs do not necessarily indicate a malfunction. These DTCs are only intended to aid in diagnosing an intermittent communication malfunction that is accompanied by a symptom. If the vehicle does not experience a symptom related to a communication malfunction, these DTCs can be disregarded.
If the DTC is a history DTC, the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur.

 

OK BUDDY THATS ALOT SO JUST CHANGE EVERTHING?

 

I think he actually thought you would look at the Diagnostic Aids in each section and check the wiring for starters.