Operation CHARM: Car repair manuals for everyone.

Accessories and Optional Equipment: Testing and Inspection






Troubleshooting

Most of the communications systems are equipped with on board diagnostic (OBD).

When performing fault finding, refer to Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052) in the function "Guided Fault Finding".

The radio system is equipped with on board diagnostic (OBD).

When performing fault finding, refer to Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052) in the function "Guided Fault Finding".

View of the RCD 510 radio





Before troubleshooting or servicing, the technicians must be familiar with the function and operation of the radio unit.

For additional information, refer to=> operating instructions.

Antitheft coding is equipped with protection code number, refer to => [ Electronic Antitheft System ] Electronic Antitheft System

When performing service work or fault finding, refer to => Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052), Guided Fault Finding,.

When the battery is reconnected, check any affected system or component (radio, clock, comfort electrical connection etc.) according to the repair information and/or the operating instructions.

The CD changer in the RCD 510 has a transportation safeguard that must be deactivated when a new unit is installed. The transportation safeguard must also be switched on in an uninstalled unit before shipping. To do this, the RCD 510 must still be connected to the voltage supply. CD changer transportation safeguard in RCD 510, refer to => [ CD Changer Transport Protection Device, Activating/Deactivating ] CD Changer Transport Protection Device, Activating/Deactivating.

Sound System Amplifier

Amplifier is equipped with on board diagnostic (OBD) capabilities

When performing fault finding, use Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052) in the function "Guided Fault Finding ".

Rear Seat Entertainment Multimedia System, Golf Plus

The multimedia system is not equipped with on board diagnostic (OBD) at this time.

Always pay attention to notes and the compulsory registration before every repair on the multimedia system. Refer to => technical service handbook.

Digital Satellite Radio

The digital satellite radio tuner is equipped with on board diagnostic (OBD) capabilities

When performing fault finding, use Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052) in the function "Guided Fault Finding ".

Apple iPOD Mount

The iPOD mount is not equipped with on board diagnostics (OBD).

Procedure for troubleshooting, refer to => [ Apple iPOD Mount ]

iPod Mount Connector

Special tools, testers and auxiliary items required

Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052)

Diagnostic adapter cable (VAS 5051/5a) or (VAS 5051/6a) or (VAS 5052/3)

Select "Test Instruments" in Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052).



Troubleshooting Procedure

The iPOD mount is not equipped with on board diagnostics (OBD).

If signal transmission to radio/radio-navigation system is not functioning, then the voltage supply at harness connector can be checked.

Test Prerequisites

First make certain that the iPOD itself is not the source of the problem, refer to=> owner's manual.

First, perform a "RESET" on the iPOD. Refer to => owner's manual.

Make sure fuse is OK.

Check radio/radio-navigation system is free of malfunctions via OBD.

Procedure

- Remove iPOD mount. Refer to => [ iPod Mount ] Communication.

- Disconnect mount connector under storage compartment.

- Using Vehicle Diagnosis, Testing and Information System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052), measure the following voltages at harness connector on wiring harness side.

at 12-pin harness connector T12, at voltage supply terminal 6, positive, with radio unit switched on.

at 12-pin harness connector T12, at voltage supply terminal 8, positive, control wire, with radio unit switched on.

at 12-pin harness connector T12, at terminal 3 voltage supply terminal 31, negative

If the voltage values specified cannot be measured, repair wire connections according to wiring diagram.

If a fault cannot be found, replace iPOD mount.

USB Sticks and mp3 Player, USB Connector

The USB connection is not capable of on board diagnostics (OBD).

USB Connection

Special tools, testers and auxiliary items required

Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052)

Diagnostic adapter cable (VAS 5051/5a) or (VAS 5051/6a) or (VAS 5052/3)

Select "Test Instruments" in Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052).

Troubleshooting Procedure

The USB connection is not capable of on board diagnostics (OBD).

If signal transmission to radio/radio-navigation system is not functioning, then the voltage supply at harness connector can be checked.

Test Prerequisites

Beforehand, make sure that USB stick or mp3 player is not the malfunction source. Refer to=> Owner's Manual.

Check that the fuse is OK.

Check radio/radio-navigation system is free of malfunctions via on board diagnostic (OBD).

Procedure

- Remove storage compartment with USB connection installed. Refer to => [ Storage Compartment with USB Connector ] Communication.

- Disconnect electrical connection on bottom of storage compartment.

- Using Vehicle Diagnosis, Testing and Information System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052), measure the following voltages at harness connector on wiring harness side.

at 12-pin harness connector T12, at voltage supply terminal 6, positive, with radio unit switched on.

at 12-pin harness connector T12, at voltage supply terminal 8, positive, control wire, with radio unit switched on.

at 12-pin harness connector T12, at terminal 3 voltage supply terminal 31, negative

If the voltage values specified cannot be measured, then repair wire connections according to wiring diagram.

If no faults can be detected, replace storage compartment with USB connection.

Telephone Systems

Telephone systems are equipped with on board diagnostic (OBD) capabilities.

When performing fault finding, use Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052) in the function "Guided Fault Finding ".

Multifunction Steering Wheel

The control module in the steering wheel communicates with steering column electronic systems control module. Data commands are processed there once more for further communication.

The multifunction steering wheel has on board diagnostic (OBD) capabilities.

When performing fault finding, use Diagnostic Operation System (VAS 5051) or Vehicle Diagnosis and Service System (VAS 5052) in the function "Guided Fault Finding ".

The multifunction steering wheel is made up of the following components:





the control unit in the steering wheel with two button arrays with integrated electronics, left and right on the steering wheel.

Control unit for multifunction steering wheel.

Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the multifunction steering wheel. Always read the Owner's Manual and review specific communication system functions.

For additional information, refer to => operating instructions.