Telematics — diagnostics and testing (Focus 1)

Contents: Inspection and verification ↳ Table of signs of malfunction ↳ Self-diagnostic mode ↳

Inspection and verification

1. Check the validity of the customer's complaint.

2. Perform a visual inspection for obvious signs of mechanical or electrical damage.

Visual inspection table

Mechanical factors

Electrical factors

– Speaker(s)

- Microphone

- Antenna

– Fuse(s)

- Wiring harness

– Electrical connector(s)

- Antenna

- Audio block

– Telematics system control unit

3. If an obvious cause for a reported or received complaint is found, correct the problem (if possible) before proceeding to the next step.

4. If the cause is not visually obvious, clarify the malfunction symptom and refer to the Malfunction Symptom Table.

Table of signs of malfunction

State	Possible Causes	Action
•The audio unit displays FAULT	•Telematic system.	•REFER to Self-Diagnostic Mode.
•GPS is displayed on the audio unit	•GPS antenna.	•CHECK the number of GPS satellites received. REFER to Self-Diagnostic Mode. • Proceed to PINPOINT TEST B.
•The audio unit displays NO SVC	•Global System for Mobile Communications (GSM) signal.	•Contact the telematics service provider for information on GSM signal strength. Advise the customer of differences in GSM signal strength depending on the vehicle location.
	•Chain(s). •GSM antenna.	• Proceed to PINPOINT TEST A
•The audio unit displays NO PHONE	•Telematic system.	•Select PHONE mode on the audio unit.
•The audio unit displays NO SIM	•Subscriber Identity Module (SIM) card. •Telematic system control unit.	•INSTALL a new SIM card. •INSTALL a new telematics control unit.
•SIM ERR is displayed on the audio unit	•SIM card. •Telematic system control unit.	•INSTALL a new SIM card. •INSTALL a new telematics control unit.

Self-diagnostic 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-Diagnostics Mode, press the audio unit preset buttons 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 malfunctions in the telematics system.

5. To switch between telematics system fault 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 cleared.

6. To exit the Self-diagnostic mode, press any button on the audio unit that is not related to the telematics system, or the MENU button on the audio unit.

Message on display	Circuit under test	Description	Actions
SYS OK, number from 0 to 8	The 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 malfunction	Proceed to PINPOINT TEST B
FLASH CS	Blink code checksum error	Internal malfunction of the telematics system control unit	INSTALL a new telematics control unit
EE FAULT	EEprom checksum error	Internal malfunction of the telematics system control unit	INSTALL a new telematics control unit
EE ERASE	EEprom erase on request	Internal malfunction of the telematics system control unit	INSTALL a new telematics control unit
SPEEDSIG	Vehicle Speed Sensor (VSS)	No VSS input signal	Proceed to PINPOINT TEST C
AIRBAG	Airbag chain	No airbag signal	Proceed to PINPOINT TEST D
ACP BUS	ACP connection	ACP communication error	For additional information, see Section 415-00.