Telematics System TroubleshootingW/Onstar System Status Light

Telematics System, Troubleshooting Using OnStar System Status Light

The following allows technicians to perform an initial evaluation of Telematics system operation status for troubleshooting using the OnStar system status light (and pre-recorded system messages where applicable).

NOTE: After pressing either the OnStar or Emergency button, a recorded message announces: "connecting to OnStar," followed by progression tones. Normal connection time is 10 - 15 seconds. However, due to local cellular/GPS conditions, making a connection could take up to three minutes. Be patient.

Condition - system status light "green" plus:
- message "unable to contact OnStar " and disconnect,
- message "OnStar request ended",
- nothing happens,
- or a cellular message

indicates system cellular reception is affected. Proceed as follows:
- Relocate vehicle to a more elevated or open area and repeat connection attempts. Depending on the local cellular/GPS traffic conditions, several connection attempts may be necessary (and are normal).

Shortcomings in the vehicle's cellular/GPS antenna system also affects connectivity.
- Check all cellular/GPS antenna connections, and perform OBD program using VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Vehicle Self Diagnosis" and/or "Guided Fault Finding". Check for DTCs related to antenna function.

If you are still unable to connect:
- Record the VIN and customer details and call the OnStar Customer Care at 1-888-390-4050. Identify yourself to the advisor as an Audi technician. The advisor will verify the customer's OnStar account is active. Further troubleshooting assistance may be given.

Condition - system status light "red"
System hardware (vehicle portion) is affected. Perform OBD program using VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Vehicle Self Diagnosis" and/or "Guided Fault Finding". Proceed as follows:

Using VAS 5051 in mode: "Vehicle Self-Diagnosis":
- Select vehicle system 75 - "Telematics"
- Perform/check:
- DTC memory (function 02)
- Output DTM (function 03)
- Read Measuring Value Block (function 08)

Using VAS 5051 in mode: "Guided Fault Finding":
- Enter appropriate model, equipment and model year information and press ">" to confirm.

After all control modules have been registered and DTC memories checked,
- Press "Go to"
- Select "Function/Component Selection"
- Select "Body"
- Select "Electrical Equipment"
- Select "01 - On Board Diagnostic (OBD)"
- Select "Telematic"
- Select "Functions -Telematic"
- Review list and perform applicable guided fault finding function(s).

NOTE: In the event any of the OnStar control buttons are either inadvertently or deliberately pressed for longer than 15 seconds, the OBD program assumes a button is sticking. The red status light will come on and a DTC loads in memory. Perform OBD program using VAS 5051 and check DTC memory for DTC 01526 "mechanical malfunction". Inform customers accordingly.