Checking The Parking Assistance System, No Diagnostic Trouble Codes

If the customer has problems with the parking assistance system not functioning even though there are no fault codes stored in the parking assistance module (PAM), the problem may be due to a software error in the parking assistance module (PAM).

A new Parking Assistance Module (PAM) was introduced into production structure week 200923.

The control module can also be installed in older vehicles due to aftermarket installation or replacement warranty.

A software fault in the control module means that VIDA cannot read DTCs in this control module. The control module will appear to be fault free in VIDA despite there being DTCs stored.

Action 

If it is suspected that there are DTCs stored in the Parking Assistance Module (PAM) although VIDA does not present any, the software will need to be upgraded in the parking assistance module (PAM).

After the upgrade, VIDA (Volvo Scan Tool) reads DTCs from the control module.