Data Signal Circuit between Radio Receiver and Extension Module [12/2015 - 11/2017]: Procedure

1. Disconnect the V6 and Z3 radio and display receiver assembly connectors.
2. Disconnect the V4 and Z2 stereo component tuner assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   V6-1 (USV4) - V4-1 (USV4)	Always	Below 1 Ω
   V6-2 (US4-) - V4-2 (US4-)	Always	Below 1 Ω
   V6-3 (US4+) - V4-3 (US4+)	Always	Below 1 Ω
   V6-4 (UGD4) - V4-4 (UGD4)	Always	Below 1 Ω
   V6-5 (USG4) - V4-5 (USG4)	Always	Below 1 Ω
   Z3-4 (+B2) - Z2-4 (+B)	Always	Below 1 Ω
   Z3-3 (ACC2) - Z2-3 (ACC)	Always	Below 1 Ω
   Z3-8 (GND2) - Z2-8 (GND2)	Always	Below 1 Ω
   V6-1 (USV4) - Body ground	Always	10 kΩ or higher
   V6-2 (US4-) - Body ground	Always	10 kΩ or higher
   V6-3 (US4+) - Body ground	Always	10 kΩ or higher
   V6-4 (UGD4) - Body ground	Always	10 kΩ or higher
   V6-5 (USG4) - Body ground	Always	10 kΩ or higher
   Z3 (+B2) - Body ground	Always	10 kΩ or higher
   Z3 (ACC2) - Body ground	Always	10 kΩ or higher
   Z3 (GND2) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE NO. 1 NAVIGATION WIRE 

Result: 

OK 

See step  2

1. Replace the No. 1 navigation wire with a known good one.
2. Check that the malfunction disappears.

   OK

   Malfunction disappears.

Result: 

OK 

END (NO. 1 NAVIGATION WIRE [LVDS COMMUNICATION LINE] WAS DEFECTIVE) 

Result: 

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [12/2015 - 08/2016] Refer to PROBLEM SYMPTOMS TABLE [08/2016 - 11/2017] )