CARSNBIKES

I bought a 2000 gs400 a few months back and havent completely begun dailying it until a few weeks ago, and thats when I noticed the problem. None of my air vents are getting supplied air from the blower except for those in the dash, none on feet, none on the windshield. The temperature and blower intensity vary and it seems as though the control panel in the dash works as designed. Does anyone know if there is a control module in this system as well as the blower box with all the doors? I work for Porsche as a technician (Hence why I question the number of control modules) and have no access to a factory scan tool to check for codes or dig up a diagnostic chart.

CARSNBIKES

... Bump??

Mcon

iTrader: (1)

Check this link and you can have better idea of that are you looking for. Good luck

http://www.lexussouthatlantaparts.co...category=21751

Mcon

iTrader: (1)

Also, this other link.

http://www.lexussouthatlantaparts.co...ze/87A880A.jpg

The part # 87106L is the Servo motor for the motor blower. This one control the recicle air and out side air.
The part # 87106H2 is the Driver Side Servo. This servo control the air mix temp.
The part # 87106H1 is the Passenger Side Servo. This servo control the air mix temp.
The part # 87106D is the Mode Servo. This servo control the different position on your vents.

Again, good luck and I hope this help you with the issue that you have with you car.

Mcon

iTrader: (1)

Also, if you want to check any code on the A/C screen, follow these steps and do it outside, outdoors without shade.
At the same time press the Auto and Recirculation Buttons
Put the key in to the ignition switch and to ON position. ****Do not turn the engine ON****
The display will start flashing 4 times.
If the display show you 00 after the 4 time flashing, the system is okay. But if the screen gives you different code, Tell me those codes to continue helping you.

Mcon

iTrader: (1)

You're in luck with me. Look what I found for you.

TROUBLE SHOOTING
SELF-DIAGNOSTICS
An Electronic Control Unit (ECU) within A/C-heater control
panel monitors system circuits and stores trouble codes in memory if
problems are detected. All codes, except Codes 22 and 23, are stored
in memory. Malfunction is current if Code 22 or 23 is displayed. To
retrieve stored codes, see RETRIEVING CODES. Codes are displayed at
temperature display. See Fig. 2.
RETRIEVING CODES
1) Simultaneously press and hold AUTO and recirculated air
switches. See Fig. 2. Turn ignition on. All indicators will flash 4
times, at one-second intervals. Tone will sound when indicators flash.
2) A/C system will enter self-diagnostic mode. To end
indicator check, press and release OFF switch. Read codes at
temperature display.
3) If trouble code is displayed, proceed to appropriate
trouble shooting procedure. See DIAGNOSTIC CODE IDENTIFICATION table.
Codes are displayed in ascending order. To slow rate at which codes
are displayed, press fresh air button to change display to step
operation. Each time fresh air button is pressed, display changes by
one step.
4) If tone sounds as code is displayed, problem currently
exists. If tone does not sound as code is displayed, problem occurred
in past and does not presently exist.
Code Diagnosis
00 ................................................ Normal
11 (1) ............. In-Vehicle Temperature Sensor Circuit
12 (2) ................ Ambient Temperature Sensor Circuit
13 ................. Evaporator Temperature Sensor Circuit
14 .................... Coolant Temperature Sensor Circuit
21 (3) .............................. Solar Sensor Circuit
22 (4) .................... Compressor Lock Sensor Circuit
23 (4) ........................... Pressure Switch Circuit
31 .................. Air Mix Door Position Sensor Circuit
32 ................ Air Inlet Door Position Sensor Circuit
33 ............... Air Outlet Door Position Sensor Circuit
41 ....................... Air Mix Door Servomotor Circuit
42 ..................... Air Inlet Door Servomotor Circuit
43 .................... Air Outlet Door Servomotor Circuit
(1) - If in-vehicle temperature is -4  F (-20  C) or less,
Code 11 may set even though system is normal.
(2) - If outside air temperature is -58  F (-50  C) or less,
Code 12 may occur set though system is normal.
(3) - If testing is done in a dark area, Code 21 may set
even though system is normal. Shine a light at solar
sensor and recheck codes.
(4) - Malfunction is current. Code is not stored in memory.

ACTUATOR CHECK
1) Perform step 1) of RETRIEVING CODES. When system enters
self-diagnostic mode, press recirculated air button. Each mode door,
motor, and relay will operate at one-second intervals. Press fresh air
button to display codes one at a time, and perform step-by-step
actuator check.
2) Check airflow and temperature by hand. Tone will sound
each time display code changes. Each display code is associated with a
system operating condition. See Fig. 3 or 4. Press OFF button to
cancel actuator check mode.