Porsche Cayenne Turbo (9PA) Technical Service Bulletin # 319/10 Date: 100326 Drivetrain - All Wheel Drive Defective Message Displayed 3 19/10 ENU 3978

Porsche Cayenne Turbo (9PA) Technical Service Bulletin # 319/10 Date: 100326
Drivetrain - All Wheel Drive Defective Message Displayed
3
19/10 ENU 3978
Mar 26, 2010
Transfer Gear: Servo Motor and Control Unit
(19/10)
Model year: as of 2003 up to 2010
Vehicle Type:
Cayenne/Cayenne S/Cayenne GTS/Cayenne Turbo/Cayenne Turbo S
Equipment:
Porsche Traction Management (PTM)
Concerns:
Servo motor and control unit for transfer gear.
Information:
- Display in instrument cluster: "All-wheel drive system defective",
- Fault code 2033, 2039, 2041, 2042 in transfer gear control unit.
This is caused by overheating of the servo motor in the "Low Range" driving program afier driving long distances due to a fault in the transfer gear
control unit. As a result, the fault codes specified above are entered in the control unit.
A modified transfer gear control unit is installed since October 30, 2009.
Date of Introduction:
October 30, 2009
Action Required:
In the event of a complaint, replace the servo motor and install a new control unit.
Control unit
Model year 2003 to 2006: ----> 391319 Removing and insta11ing transfer gear control unit.
Model year as of 2008: ----> 391319 Removing and installing transfer gear control unit.
Servo motor
--> 397819 Removing and installing servo motor on transfer gear.
2010 Porsche Cayenne Turbo (9PA) V8-4.8L Turbo   Page 11
Parts Info:
References:
--> 391319 Removing and installing transfer gear control unit
--> 391319 Removing and installing transfer gear control unit
--> 397819 Removing and installing servo motor on transfer gear