Toyota Camry (XV70): AV Signal Stoppage (Low Battery Voltage) (B158F)
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. | Detection Item |
DTC Detection Condition | Trouble Area |
B158F | AV Signal Stoppage (Low Battery Voltage) |
A video or audio signal is interrupted when the battery voltage drops |
- Radio and display receiver assembly
- Harness or connector
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
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- When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1. | CHECK VEHICLE SIGNAL (OPERATION CHECK) |
(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check.
Click here | |
(b) Measure the battery voltage.
Standard Voltage:
11 to 14 V
HINT:
This display is updated once per second.
NG |
| GO TO STEP 3 |
OK |
| |
(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 Codes
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 K3 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 |
K3-4 (+B1) - Body ground |
Always | 11 to 14 V |
OK |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
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SEE MORE:
INSTALLATION PROCEDURE 1. INSTALL PARKING BRAKE PEDAL ASSEMBLY
(a) Pass the No. 1 parking brake cable assembly through the parking brake pedal assembly.
(b) Install a new clip to the No. 1 parking brake cable assembly.
(c) Temporarily install a new No. 1 wire adjusti
INSPECTION PROCEDURE 1. INSPECT NAVIGATION ANTENNA ASSEMBLY (w/o Manual (SOS) Switch)
(a) Check that the navigation antenna assembly cable is properly installed and does not have any sharp bends, pinching or loose connections.
(b) Current consumption check:
(1) Measure the current consumpt