20-BE-001H

GROUP
Body Electrical
Technical Service Bulletin
SUBJECT:
DATE
January, 2020
NUMBER
20-BE-001H
MODEL(S)
ALL
USB MULTI-BOX DIAGNOSTIC GUIDELINES
Description:
1. This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common
connection conditions.
2. This bulletin presents guidelines to inspect for common Android Auto and Apple CarPlay
connection conditions.
3. This bulletin provides physical differences between the USB 2.0 port and USB 3.0 port.
Applicable Vehicles: All Hyundai Models.
USB and Head Unit Connection Inspection
Perform this inspection before replacing the head unit. Inspect the USB cable/harness for any loose
connections occuring at the back of the head unit and multi-box. Disconnecting and reconnecting the
USB cable/harness can sometimes restore multi-box functionality.
Multi-box Wear Indicators:
If the multi-box displays signs of wear, replace the multi-box.
USB Port Wear
Multi-Box Wear
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair
SUBJECT:
USB MULTI-BOX DIAGNOSTIC GUIDELINES
Android Auto and Apply CarPlay Multi-box Guidelines
Android Auto and Apply CarPlay rely on the connection between the customer’s phone and the
vehicle head unit. Use the guidelines below to help prevent Android Auto/Apple CarPlay “No Trouble
Found” (NTF) warranty claims:
•
Have a known, good OEM phone cord (Android and Apple) to test connection between the
multi-box and phone.
•
Examine the customer’s phone cord (ex. Micro-USB) for wear and tear.
•
Examine the phone’s connection for excess lint, corrosion or debris.
•
Verify that the cable harness that attaches from the back of the multi-box and the head unit is
securely connected.
•
Inspect the vehicle’s USB port for signs of wear. See reference photo below.
•
If the customer’s phone and USB cable connect properly in a known, good vehicle, replace the
multi-box and not the head unit.
TSB #: 20-BE-001H
Page 2 of 3
SUBJECT:
USB MULTI-BOX DIAGNOSTIC GUIDELINES
USB 2.0 and USB 3.0 Port Differences and Pin Configuration
USB 2.0 Cable
1.
2.
3.
4.
VCC (pwr)
D- (data-)
D+ (data+)
GND
1.
2.
3.
4.
VCC (pwr)
D- (data-)
D+ (data+)
GND
1.
2.
3.
4.
5.
6.
7.
8.
9.
VCC (pwr)
D- (data-)
D+ (data+)
GND
SSRXSSRX+
GND Drain
SSTXSSTX+
Multi-box USB 2.0 PIN Layout
1 2 3 4
USB 3.0 Cable
5 6
4
TSB #: 20-BE-001H
3 2 1
7 8 9
Page 3 of 3