DESCRIPTION
This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the navigation receiver assembly dropping temporarily.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B158F |
A video or audio signal is interrupted when the battery voltage drops |
Navigation receiver assembly |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK VEHICLE SIGNAL (OPERATION CHECK) |
(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check (See page
|
|
(b) Check the battery voltage.
Standard Voltage:
11 to 14 V
HINT:
This display is updated once per second.
NG | ![]() |
GO TO STEP 3 |
|
2. |
CHECK DTC |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
NG | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
3. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the E38 navigation receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E38-4 (+B1) - Body ground |
Always |
11 to 14 V |
OK | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)
(a) Disconnect the I13 connector.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness side with the ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE FRONT TRANSAXLE CASE OIL SEAL
(a) Using SST, remove the front transaxle case oil seal from the transaxle
housing.
SST: 09308-00010
2. REMOVE TRANSAXLE CASE OIL ...
ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the transponder key ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly is replaced, register the key and ECU communication
ID (See page ).
PROCEDURE
...