Code Help
Thread Starter
Racer
Joined: Apr 2005
Posts: 327
Likes: 0
From: My house in the middle of my street GA
Code Help
Need some advice on this code:
B0361 Left Actuator Feedback Short to GND
My A/C is only blowing cold air on the passager's side and I'm trying to figure out whats's wrong.
Tell me what this means and what can i do to fix it.
Thanks
B0361 Left Actuator Feedback Short to GND
My A/C is only blowing cold air on the passager's side and I'm trying to figure out whats's wrong.
Tell me what this means and what can i do to fix it.
Thanks
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Here's the description and and code conditions. Email me if you want the complete diagnostic procedure.
DTC B0361 Left Actuator Feedback Short to GND
Circuit Description
The HVAC Control Assembly 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 Assembly. The variable output from the potentiometer feeds back a position signal through CKT 733 to a pull-up resistor located in the HVAC Control Assembly. 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 Assembly.
Conditions for Setting the DTC
With the ignition in the ON position, CKT 733 is checked continuously.
CKT 733 stays at or near 0 volts.
Action Taken When the DTC Sets
The HVAC Control Assembly stores a DTC B0361 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 B0361 Left Actuator Feedback Short to GND
Circuit Description
The HVAC Control Assembly 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 Assembly. The variable output from the potentiometer feeds back a position signal through CKT 733 to a pull-up resistor located in the HVAC Control Assembly. 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 Assembly.
Conditions for Setting the DTC
With the ignition in the ON position, CKT 733 is checked continuously.
CKT 733 stays at or near 0 volts.
Action Taken When the DTC Sets
The HVAC Control Assembly stores a DTC B0361 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.
