DTC B1A89:13 [CONNECTIVITY MASTER UNIT]

id0902n7105900

Description

DAB antenna feeder malfunction

Detection condition

•  The connectivity master unit detects an open circuit in DAB antenna feeder with the ignition switched ON (engine off or on).

Fail-safe function

Not applicable

Possible cause

•  Tuner and amp unit connector or terminal malfunction

•  Antenna feeder No.1 connector or terminal malfunction

•  Open circuit in DAB antenna feeder No.1

•  Antenna feeder No.2 connector or terminal malfunction

•  Open circuit in DAB antenna feeder No.2

•  Antenna feeder No.3 connector or terminal malfunction (5HB)

•  Open circuit in DAB antenna feeder No.3 (5HB)

•  Center roof antenna malfunction

―  DAB antenna feeder malfunction

•  Tuner and amp unit malfunction

System wiring diagram

Not applicable

Description	DAB antenna feeder malfunction
Detection condition	• The connectivity master unit detects an open circuit in DAB antenna feeder with the ignition switched ON (engine off or on).
Fail-safe function	Not applicable
Possible cause	• Tuner and amp unit connector or terminal malfunction • Antenna feeder No.1 connector or terminal malfunction • Open circuit in DAB antenna feeder No.1 • Antenna feeder No.2 connector or terminal malfunction • Open circuit in DAB antenna feeder No.2 • Antenna feeder No.3 connector or terminal malfunction (5HB) • Open circuit in DAB antenna feeder No.3 (5HB) • Center roof antenna malfunction ― DAB antenna feeder malfunction • Tuner and amp unit malfunction
System wiring diagram	Not applicable

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT TUNER AND AMP UNIT CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • Disconnect the tuner and amp unit connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
1		No	Repair or replace the connector, then go to Step 9.
2	INSPECT ANTENNA FEEDER NO.1 CONNECTOR CONDITION • Disconnect the antenna feeder No.1 connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to Step 9.
3	INSPECT DAB ANTENNA FEEDER NO.1 • Inspect DAB antenna feeder No.1. (See ANTENNA FEEDER NO.1 INSPECTION.) • Is DAB antenna feeder No.1 normal?	Yes	Go to the next step.
3		No	Replace DAB antenna feeder No.1, then go to Step 9. (See ANTENNA FEEDER NO.1 REMOVAL/INSTALLATION.)
4	INSPECT ANTENNA FEEDER NO.2 CONNECTOR CONDITION • Disconnect the antenna feeder No.1 connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
4		No	Repair or replace the connector, then go to Step 9.
5	INSPECT DAB ANTENNA FEEDER NO.2 • Inspect DAB antenna feeder No.2. (See ANTENNA FEEDER NO.2 INSPECTION.) • Is DAB antenna feeder No.2 normal?	Yes	4SD • Go to Step 8. 5HB • Go to the next step.
5		No	Replace DAB antenna feeder No.2, then go to Step 9. (See ANTENNA FEEDER NO.2 REMOVAL.) (See ANTENNA FEEDER NO.2 INSTALLATION.)
6	INSPECT ANTENNA FEEDER NO.3 CONNECTOR CONDITION • Disconnect the antenna feeder No.3 connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
6		No	Repair or replace the connector, then go to Step 9.
7	INSPECT DAB ANTENNA FEEDER NO.3 • Inspect DAB antenna feeder No.3. (See ANTENNA FEEDER NO.3 INSPECTION.) • Is DAB antenna feeder No.3 normal?	Yes	Go to the next step.
7		No	Replace DAB antenna feeder No.3, then go to Step 9. (See ANTENNA FEEDER NO.3 REMOVAL/INSTALLATION.)
8	INSPECT DAB ANTENNA FEEDER • Inspect the DAB antenna feeder. (See DAB ANTENNA AMPLIFIER INSPECTION.) • Is the DAB antenna feeder normal?	Yes	Go to the next step.
8		No	Replace the center roof antenna, then go to the next step. (See DAB ANTENNA AMPLIFIER REMOVAL/INSTALLATION.)
9	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • Clear the DTC for the connectivity master unit using the M-MDS. (See CLEARING DTC [CONNECTIVITY MASTER UNIT].) • Switch the ignition ON (engine off or on) and wait for 7 s or more. • Perform the DTC inspection for the connectivity master unit using the M-MDS. (See DTC INSPECTION [CONNECTIVITY MASTER UNIT].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the tuner and amp unit. (See TUNER AND AMP UNIT (TAU) REMOVAL/INSTALLATION.) Go to the next step.
9		No	Go to the next step.
10	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [CONNECTIVITY MASTER UNIT].)
10		No	DTC troubleshooting completed.