DESCRIPTION
If the multi-media module receiver assembly cannot detect the DCM for a certain period of time (15 seconds) after the engine switch is turned on (ACC) and the multi-media module receiver assembly confirms that the information is missing by checking past DCM recognition information (registered information), "NCON" will be displayed.
The G-BOOK system uses USB communication between devices. If an open, short, short to +B or short to ground occurs in the USB circuit, communication is interrupted and the G-BOOK system will not operate normally.
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
Tech Tips
When replacing the multi-media module receiver assembly or the telematics transceiver, perform the vehicle contract setting Click here.
PROCEDURE
CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - BATTERY AND BODY GROUND)
*a | Front view of wire harness connector (to Telematics Transceiver) |
Disconnect the telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (USBV, USBG)
*a | Component without harness connected (Multi-media Module Receiver Assembly) |
Disconnect the multi-media module receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here |
OK |
CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)
Check the installation condition.
Check the USB communication cable (digital communication cable) between the multi-media module receiver assembly and the telematics transceiver for any installation or connection problems.
Disconnect the N145 multi-media module receiver assembly connector.
Disconnect the N146 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REPLACE TELEMATICS TRANSCEIVER
Replace the telematics transceiver with a known good one and check if the same problem occurs again Click here.
Perform inspections indicated on the System Check Mode screen to confirm the DCM inspection result Click here.
Result | Proceed to |
---|---|
"OK" is displayed in "DCM" on the System Check Mode screen. | A |
"NCON" is displayed in "DCM" on the System Check Mode screen. | B |
B |
REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here |
A |
END (TELEMATICS TRANSCEIVER IS DEFECTIVE)