Toyota Venza: AV Signal Stoppage (Low Battery Voltage) (B158F)

Toyota Venza Service Manual / Navigation / Multi Info Display / Navigation System / 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 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.

GO TO STEP 3

CHECK DTC

(a) Clear the DTCs (See page ).

(b) Recheck for DTCs and check that no DTCs are output.

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

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

REPLACE NAVIGATION RECEIVER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

SD Card Communication Malfunction (B158C)

DESCRIPTION The navigation receiver assembly stores this DTC when the SD card (disc player disc) cannot be mounted when inserted into the SD card (disc player disc) slot. DTC No. ...

Stereo Component Amplifier Malfunction (B15A3)

DESCRIPTION This DTC is stored when a malfunction occurs in the stereo component amplifier assembly. DTC No. DTC Detection Condition Trouble Area ...

Other materials about Toyota Venza:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE COOLER DRYER (a) Using a 14 mm straight hexagon wrench, remove the cap from the modulator. Text in Illustration *1 14 mm Straight Hexagon Wrench *2 ...

Malfunction in Deceleration Sensor (C0365/28,C1234/34,C1245/32,C1245/45)
DESCRIPTION The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system. The yaw rate sensor has a built-in acceleration sensor. If there is trouble in the bus lines between the yaw rate and acceleratio ...

Open or Short Circuit in ABS Motor Relay Circuit (C0273/13)
DESCRIPTION The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU turns the motor relay on and operates the ABS pump motor. If the voltage supplied to the motor relay (+BM) is below the DTCs detection threshold due ...