Inspection and verification
1. Check the validity of the customer's complaint.
2. Perform a visual check for obvious signs of mechanical or electrical damage.
Visual Inspection Table
|
Mechanical factors |
Electrical Factors |
|
– Speaker (And) – Microphone – Antenna |
- Fuse (And) – wiring harness – Electrical connector (s) – Antenna – Audio unit – Telematic system control unit |
3. If there is an obvious cause for a noted or received complaint, troubleshoot (if it is possible) before moving on to the next step.
4. If the cause is not visually obvious, check the symptom and refer to the Symptom Chart.
Symptom table
|
State |
Possible Causes |
Action |
|
• FAULT is displayed on the audio unit |
• Telematic system. |
• REFER to Self-diagnosis Mode. |
|
• GPS is displayed on the audio unit |
• GPS antenna. |
•CHECK the number of GPS satellites received. REFER to Self-diagnostic Mode. • Go to PINPOINT TEST B. |
|
•NO SVC is displayed on the audio unit |
•Global System for Mobile Communications signal (GSM). |
•Contact your telematics service provider for information on GSM signal strength. Notify the customer of the differences in GSM signal strength depending on the vehicle's location. |
|
•Chain (And). • GSM antenna. |
• Go to PINPOINT TEST A |
|
|
•NO PHONE is displayed on the audio unit |
• Telematic system. |
•Select the PHONE mode on the audio unit. |
|
•NO SIM is displayed on the audio unit |
•Subscriber Identity Module Card (SIM). • Control unit for telematics system. |
• INSTALL a new SIM card. • INSTALL a new telematics control unit. |
|
•SIM ERR is displayed on the audio unit |
• SIM card. • Control unit for telematics system. |
• INSTALL a new SIM card. • INSTALL a new telematics control unit. |
Self-diagnosis mode
1. To enter the Self-diagnosis mode of the telematics system, turn on the audio unit.
2. Press the MENU button on the audio unit until PHONE appears.
3. To enter the Self-diagnostic mode, press the presetting buttons of the audio unit in the following sequence for no more than five seconds: 6, 6, 1 and 6.
4. If the message SYS OK appears, there are no problems with the telematics system.
5. To navigate through the telematics system trouble codes in Self-Diagnostic Mode, press the SEEK UP or SEEK DOWN buttons on the audio unit.
NOTE: When you exit the diagnostic mode, all fault codes stored in memory are deleted.
6. To exit the Self-diagnosis mode, press any button on the audio unit that is not related to the telematics system, or on the MENU button on the audio unit.
|
Display message |
Test chain |
Description |
Actions |
|
SYS OK, number from 0 to 8 |
System as a whole, GPS satellites |
No faults detected, current number of received GPS satellites |
If the number shown is less than three, make sure the vehicle is outside the workshop and there are no large buildings/structures or metal objects in the immediate vicinity. |
|
GSM BUS |
GSM/DSC BUS |
GSM/DSC BUS failure |
INSTALL a new telematics control unit |
|
GPS RXHW |
GPS receiver circuit |
GPS receiver failure |
Go to PINPOINT TEST B |
|
FLASH CS |
Blink Code Checksum Error |
Internal malfunction of the telematics control unit |
INSTALL a new telematics control unit |
|
EE FAULT |
EEprom checksum error |
Internal malfunction of the telematics control unit |
INSTALL a new telematics control unit |
|
EE ERASE |
Erase EEprom on demand |
Internal malfunction of the telematics control unit |
INSTALL a new telematics control unit |
|
SPEEDSIG |
Vehicle speed sensor (VSS) |
No VSS input |
Go to PINPOINT TEST C |
|
AIRBAG |
Airbag circuit |
Missing airbag signal |
Go to PINPOINT TEST D |
|
ACP BUS |
Communication ACP |
ACP communication error |
See Section 415-00 for more information. |
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