Tech Tips
Use the following procedure to troubleshoot the G-BOOK system.
*: Use the intelligent tester.
VEHICLE BROUGHT TO WORKSHOP
| NEXT |
|
CHECK PROBLEM SYMPTOM
The G-BOOK system provides a variety of functions. Therefore, it is important to identify whether a malfunction is related to the communication system, including radio wave conditions, or any other systems. Carefully confirm the conditions that caused the malfunction in order to determine if a temporary problem with the radio wave signal condition caused the malfunction.
| Displayed Message and Problem Symptom | Cause |
|---|---|
| A message is displayed temporarily indicating to try again after moving the vehicle because the center cannot be accessed, as the screen cannot be displayed due to a busy line, etc. | This is caused when there is a problem with the radio wave signal conditions or when the base station is busy. This is not a malfunction (inform the customer that this is not a malfunction and ask them to use the system as is). |
| A message is displayed temporarily indicating to try again after waiting for a while because the information cannot be retrieved due to a busy line, etc. | This is caused when there is a problem with the radio wave signal conditions or when the base station is busy. This is not a malfunction (inform the customer that this is not a malfunction and ask them to use the system as is). |
| A message is displayed temporarily indicating to try again after waiting for a while because the lines are busy. | This is caused when there is a problem with the radio wave signal conditions or when the base station is busy. This is not a malfunction (inform the customer that this is not a malfunctions and ask them to use the system as is). |
| NEXT |
|
INSPECT BATTERY VOLTAGE
Measure the battery voltage.
| Standard Voltage |
|---|
| 11 to 14 V |
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
| NEXT |
|
CHECK CAN COMMUNICATION SYSTEM*
Use the intelligent tester to check if the CAN communication system is functioning normally Click here.
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
GO TO CAN COMMUNICATION SYSTEM Click here |
| A |
|
PROBLEM SYMPTOMS TABLE
Refer to Problem Symptoms Table Click here.
| Result | ||||||
|---|---|---|---|---|---|---|
|
Tech Tips
If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms Click here.
| B |
|
Go to step 7 |
| A |
|
PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM
Refer to Terminals of ECU Click here.
| NEXT |
|
CHECK CIRCUIT
Adjust, repair or replace as necessary.
Note
If the multi-media module receiver assembly is replaced, perform the vehicle contract setting Click here.
Download necessary data after replacing the hard disk drive Click here.
| NEXT |
|
PERFORM CONFIRMATION TEST
| NEXT |
|
| END |