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. |
INSPECT NO. 1 NAVIGATION WIRE |
(a) Disconnect the GA No. 1 navigation wire connector from the antenna cord sub-assembly. |
|
(b) Disconnect the GU No. 1 navigation wire connector from the navigation ECU.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
GU-1 (GV-) - GA-1 |
Always |
Below 1 Ω |
GU-2 (GV+) - GA-2 |
Always |
Below 1 Ω |
GU-3 (GND) - GA-3 |
Always |
Below 1 Ω |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
REPLACE ANTENNA CORD SUB-ASSEMBLY |
(a) Replace the antenna cord sub-assembly with a new or known good 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 (ANTENNA CORD SUB-ASSEMBLY IS DEFECTIVE) |
|
5. |
REPLACE NAVIGATION ECU |
(a) Replace the navigation ECU with a new one.
Click here
|
6. |
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 |
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TERMINALS OF ECU
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(a) Disconnect the M66, M67 and F1 certification ECU (smart key ECU assembly)
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