General Information

Radio On Board Diagnostic (OBD) ("Sound System" only)

General information

A new radio generation was installed as a running change from late 10.97 production as follows: Jetta VIN WM142005, Golf/Cabrio VIN: WM146415 (VINs approximate). Radio descriptions "Deluxe" and "Premium"are no longer used. The new radio generation is referred to as "Sound System".

Sound System units are controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory together with an indication of malfunction type. A maximum of 4 DTCs can be stored simultaneously.

Sporadic malfunctions (indicated in the readout by "SP") are automatically cancelled if not repeated in the next 50 engine starts.

Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with VAG 1551 or VAG 1552 Scan Tool (ST).

Notes on exchanging radio

- Do not disassemble radio.

- When the replacement of a malfunctioning radio is necessary, follow exchange part procedures.

- Complete the report form and return together with radio.

- Use the original packaging from the new radio when returning.

Additional information:

- See complaint/symptom based Technical Bulletins ("Service Fixes").