DESCRIPTION
This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio and display receiver assembly dropping temporarily.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B158F |
A video or audio signal is interrupted when the battery voltage drops |
Radio and display 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) Measure 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 | ![]() |
END |
NG | ![]() |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the E4 radio and display receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E4-4 (+B1) - Body ground |
Always |
11 to 14 V |
OK | ![]() |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Sound Quality is Bad Only when CD is Played (Volume is Too Low)
PROCEDURE
1.
REPLACE CD AND RECHECK
(a) Replace the CD with a new or known good one and check that the malfunction
disappears.
OK:
Malfunction disappears.
OK
END
NG
REPLACE ...
Back Door Entry Lock Function does not Operate
DESCRIPTION
If the back door entry lock function does not operate but the back door open
function operates, the communication between the vehicle and key is normal. As a
faulty part, the entry lock switch circuit (from the back door opener switch assembly ...
Auto Up Operation does not Fully Close Power Window (Jam Protection Function
is Activated)
DESCRIPTION
If a door glass or a power window regulator motor assembly does not operate smoothly,
the jam protection function may be triggered automatically, resulting in the auto
up function being unable to fully close the window.
HINT:
This symptom ma ...