B159F

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B1561,B159F: XM Tuner Disconnected (Command Line)

DTC B1561 - XM Tuner Disconnected (Command Line)

DTC B159F - No Response from XM Tuner

DESCRIPTION

The navigation receiver assembly and stereo component tuner assembly are connected by the AVC-LAN communication line.
When an AVC-LAN communication error occurs between the navigation receiver assembly and stereo component tuner assembly, this DTC will be stored.

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

WIRING DIAGRAM

INSPECTION PROCEDURE
NOTICE: After replacing the stereo component tuner assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary.

PROCEDURE

1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)
(a) Check for optional components
(1) 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.

2. 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.

3. CHECK DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Recheck for DTCs and check if the same trouble occurs again.
OK:
No DTCs are output.

NG -- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT TUNER ASSEMBLY POWER SOURCE)
OK -- END
4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT TUNER ASSEMBLY POWER SOURCE)

(a) Disconnect the M20 stereo component tuner assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

Text in Illustration

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

5. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - STEREO COMPONENT TUNER)

(a) Disconnect the E18 navigation receiver assembly connector.

(b) Disconnect the M20 stereo component tuner assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

Text in Illustration

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

6. REPLACE STEREO COMPONENT TUNER ASSEMBLY
(a) Replace the stereo component tuner assembly Removal.
(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(c) Recheck for DTCs and check if the same trouble occurs again.
OK:
No DTCs are output.

NG -- REPLACE NAVIGATION RECEIVER ASSEMBLY
OK -- END