Audio And Visual System (w/o Daytime Running Light)

AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Daytime Running Light): B15D3: Stereo Component Amplifier Disconnected
B15D3 - Stereo Component Amplifier Disconnected

DESCRIPTION

The radio and display receiver assembly and stereo component amplifier assembly are connected by the AVC-LAN communication line.

When an AVC-LAN communication error occurs between the navigation ECU sub-assembly and stereo component amplifier assembly, this DTC will be stored.

HINT
* *1: Even if no fault is present, this DTC may be stored depending on the auxiliary battery condition or hybrid system start voltage.
* The navigation ECU sub-assembly is the master unit.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CHECK DTC

(a) If DTC B15C3 is output, perform the troubleshooting of DTC B15C3 first.

Result:

B -- GO TO DTC "B15C3" IN DIAGNOSTIC TROUBLE CODE CHART Audio And Visual System (w/o Daytime Running Light)
A -- Continue to next step.

2. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

(a) Check that optional components (including associated wiring) which generate radio waves are not installed.

Result:

HINT
* Electrical noise from radio waves generated by optional components or the wiring for those components may affect AVC-LAN communication.
* This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.

B -- CHECK DTC
A -- Continue to next step.

3. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

(a) Remove optional components (including associated wiring).

NOTICE:
Do not remove optional components or associated wiring without the permission of the customer.

NEXT -- Continue to next step.

4. CHECK DTC

(a) Clear the DTCs Audio And Visual System (w/o Daytime Running Light).

(b) Recheck for DTCs and check if the same DTC is output again.

OK:

No DTCs are output.

NG -- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - AUXILIARY BATTERY, BODY GROUND)

OK -- END

5. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - AUXILIARY BATTERY, BODY GROUND)

(a) Disconnect the stereo component amplifier assembly connectors.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)

(a) Disconnect the navigation ECU sub-assembly connector.

(b) Disconnect the stereo component amplifier assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

(a) Replace the stereo component amplifier assembly Removal.

(b) Clear the DTCs Audio And Visual System (w/o Daytime Running Light).

(c) Recheck for DTCs and check if the same DTC is output again.

OK:

No DTCs are output.

NG -- REPLACE NAVIGATION ECU SUB-ASSEMBLY Removal

OK -- END