A/C - Rear Console A/C Inspection Supplement
Group ENGINENumber 09-HA-003
Date: MAY, 2009
Model 2009-GENESIS SEDAN
Subject
REAR CONSOLE HVAC SYSTEM OPERATION INSPECTION
DESCRIPTION:
This TSB provides additional service information for the Rear Console HVAC System to supplement the applicable Shop Manual and Electrical Troubleshooting Manual.
Follow the inspection items outlined in this bulletin to confirm proper operation during system diagnosis.
APPLICABLE VEHICLE:
^ Model: 2009 model Genesis Sedan vehicles
VEHICLE PREPARATION:
^ Start the engine and idle or drive until engine reaches normal operating temperature.
^ Park the vehicle where ambient temperature is not extremely hot or cold.
NOTE:
^ Ideal ambient temperature should be 70°F (+/- 10°F) for inspection steps.
^ This is to reduce any effects of outside air temperature influencing system logic.
^ If inspection is performed under extremely cold or hot temperature conditions, then results may vary and may lead to improper diagnosis.
INSPECTION PROCEDURE
NOTE:
Since the rear console HVAC performance is dependent on the main HVAC system, begin the inspection by testing the main HVAC system first.
1. Restart the warmed engine and operate the main HVAC system by cycling through max HOT/COLD positions in AUTO mode using the main HVAC controller. Verify temperature change at the vents from warm to cold settings.
^ If the main HVAC system does not blow warm or cold air, then diagnose/repair any conditions of the main HVAC system before continuing on to the next steps.
2. With the engine still at idle, set the main HVAC temperature to 73°F AUTO for both front seating positions, as shown above.
NOTE:
Manually increase blower speed if necessary.
3. Using the Rear Console HVAC control, cycle through max HOT/COLD positions of the temperature control dial and flow ON/OFF positions of the flow control dial. Check the vented air at the Rear Console accordingly.
NOTE:
Once the rear console vented air temperature and flow has been verified to follow the various settings of the Rear Console HVAC control, then no further inspection is necessary.
NOTE:
If the vented air temperature or flow is incorrect, then proceed to the next inspection steps.
4. Turn engine off (IGN and ACC off).
5. Pull the release lever (A) and remove the crash pad side cover.
NOTE:
This will allow access to hidden side mounting screws of the crash pad lower panel.
6. After loosening the crash pad lower panel mounting screws, remove the lower panel (A).
IMPORTANT:
Carefully disconnect the connectors from the switch panel before fully removing the lower panel. Unscrew the IGN button from the panel, but leave it connected. Do not damage the IGN button surface.
7. After loosening the mounting bolts, remove the reinforcing panel (A).
IMPORTANT:
Unclip the DLC connector body from the reinforcing panel before removal.
IMPORTANT:
To prevent possible injury, be sure to wear protective gloves before handling any metal panels.
8. Remove the shower duct (A).
9. Remove the LH extension cover on the left side of the transmission tunnel.
NOTE:
Removing the LH extension cover allows access to the (2) console temperature control actuators. (ABOVE)
Refer to the location of the console temp control actuators during next inspection steps.
10. Press the IGN button without pressing the brake pedal for ignition ON / engine OFF.
11. Set main HVAC temperature to 73°F AUTO again and reduce the blower speed to minimum using manual control.
12. Cycle the rear console HVAC control settings to the following positions and confirm corresponding movement positions of Console Temp Control Actuator Lever:
NOTE:
Check the Console Temp Control Actuators while still installed on HVAC unit by feeling the lever position behind the actuator body. Movement of the actuator lever can be felt while cycling the setting of the rear control.
^ If a ticking type sound is heard repeatedly and movement is not smooth, then remove and inspect the affected actuator.
NOTE:
Replace the affected actuator and then verify repair, if a problem is found.
NOTE:
The Console Mode Levers are fitted at the shaft ends of the two Console Temp Control Actuators. Each Console Mode Arm rotates the flow control shaft as the pin follows the control groove at the end of the lever with actuator movement.
^ If the Console Mode Arm pin does not properly follow the entire grooved path of the lever, then further inspect the affected actuator and lever.
NOTE:
Replace the affected actuator lever and then verify repair, if a problem is found.
WARRANTY INFORMATION:
Normal warranty applies.