MOST system check (with engine running)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

MOST SYSTEM CHECK (WITH ENGINE RUNNING)

Menu item	Function
MOST system check (with engine running)	Using this menu item, a MOST system check can be carried out with the ignition on. The following checks are carried out automatically and their results are displayed. Gateway start-up condition is read out. MOST installed components list (required and actual installed components list) is analysed. Ring line diagnosis. Connect and start the Porsche System Tester II 9588 and switch on the ignition. Select Cayenne in the Vehicle type menu and confirm with the "FORWORD" key. Select PCM2 in the Control modules menu and confirm with the "FORWORD" key. Select MOST components check in the PCM2 function selection and confirm with the "FORWORD" key. Select MOST system check (bottom) in the Cayenne PCM2 MOST components check function selection and confirm with the "FORWORD" key. Follow the Tester instructions. Whenever there are several ring breaks, the 1st ring break is displayed in the following order: PCM2 Gateway > external amplifier External amplifier > CD changer CD changer > telephone Telephone > PCM2 MMI is displayed. Then the check is terminated. Start the optical performance check.

Menu item

Function

MOST system check (with engine running)

Using this menu item, a MOST system check can be carried out with the ignition on. The following checks are carried out automatically and their results are displayed.

Gateway start-up condition is read out.
MOST installed components list (required and actual installed components list) is analysed.
Ring line diagnosis.
Connect and start the Porsche System Tester II 9588 and switch on the ignition.
Select Cayenne in the Vehicle type menu and confirm with the "FORWORD" key.
Select PCM2 in the Control modules menu and confirm with the "FORWORD" key.
Select MOST components check in the PCM2 function selection and confirm with the "FORWORD" key.
Select MOST system check (bottom) in the Cayenne PCM2 MOST components check function selection and confirm with the "FORWORD" key.
Follow the Tester instructions.

Whenever there are several ring breaks, the 1st ring break is displayed in the following order:

PCM2 Gateway > external amplifier
External amplifier > CD changer
CD changer > telephone
Telephone > PCM2 MMI

is displayed. Then the check is terminated.

Start the optical performance check.