DESCRIPTION
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
---|---|---|---|
B153A | GVIF Disconnected (from Extension Module to H/U) |
GVIF disconnected (from navigation ECU to radio and display receiver assembly) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. | CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
OK |
USE SIMULATION METHOD TO CHECK |
|
2. |
CHECK NO. 1 NAVIGATION WIRE (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the r1 navigation ECU connector. |
|
(b) Disconnect the r2 radio and display receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
r1-1 (GVO-) - r2-1 (GV2-) |
Always | Below 1 Ω |
r1-2 (GVO+) - r2-2 (GV2+) |
Always | Below 1 Ω |
r1-3 (GVG1) - r2-3 (GVG2) |
Always | Below 1 Ω |
NG | REPLACE NO. 1 NAVIGATION WIRE |
|
3. |
REPLACE NAVIGATION ECU |
(a) Replace the Navigation ECU with a new one.
Click here
|
4. |
CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
OK |
END (NAVIGATION ECU IS DEFECTIVE) |
NG | REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |