DTC B1A89:13 [CONNECTIVITY MASTER UNIT]

id0902n7105900

Description

SiriusXM satellite radio antenna feeder malfunction

Detection condition

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

Fail-safe

Not applicable

Possible cause

•  Tuner and amp unit connector or terminal malfunction

•  SiriusXM satellite radio antenna feeder No.1 connector or terminal malfunction

•  Open circuit in siriusXM satellite radio antenna feeder No.1

•  SiriusXM satellite radio antenna feeder No.2 connector or terminal malfunction

•  Open circuit in siriusXM satellite radio antenna feeder No.2

•  SiriusXM satellite radio antenna amplifier connector or terminal malfunction

•  SiriusXM satellite radio antenna amplifier malfunction

•  Tuner and amp unit malfunction

System wiring diagram

Not applicable

Description	SiriusXM satellite radio antenna feeder malfunction
Detection condition	• The connectivity master unit (CMU) detects an open circuit in siriusXM satellite radio antenna feeder with the ignition switched ON (engine off or on).
Fail-safe	Not applicable
Possible cause	• Tuner and amp unit connector or terminal malfunction • SiriusXM satellite radio antenna feeder No.1 connector or terminal malfunction • Open circuit in siriusXM satellite radio antenna feeder No.1 • SiriusXM satellite radio antenna feeder No.2 connector or terminal malfunction • Open circuit in siriusXM satellite radio antenna feeder No.2 • SiriusXM satellite radio antenna amplifier connector or terminal malfunction • SiriusXM satellite radio antenna amplifier 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 terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • 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 8.
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 8.
3	INSPECT SIRIUSXM SATELLITE RADIO ANTENNA FEEDER No.1 • Inspect siriusXM satellite radio antenna feeder No.1. (See ANTENNA FEEDER NO.1 INSPECTION.) • Is the siriusXM satellite radio antenna feeder No.1 normal?	Yes	Go to the next step.
3		No	Replace the siriusXM satellite radio antenna feeder No.1, then go to Step 8. (See ANTENNA FEEDER NO.1 REMOVAL/INSTALLATION.)
4	INSPECT ANTENNA FEEDER No.2 CONNECTOR CONDITION • Disconnect the antenna feeder No.2 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 8.
5	INSPECT SIRIUSXM SATELLITE RADIO ANTENNA FEEDER No.2 • Inspect siriusXM satellite radio antenna feeder No.2. (See ANTENNA FEEDER NO.2 INSPECTION.) • Is the siriusXM satellite radio antenna feeder No.2 normal?	Yes	Go to the next step.
5		No	Replace the siriusXM satellite radio antenna feeder No.2, then go to Step 8. (See ANTENNA FEEDER NO.2 REMOVAL/INSTALLATION.)
6	INSPECT SIRIUSXM SATELLITE RADIO ANTENNA AMPLIFIER CONNECTOR CONDITION • Disconnect the siriusXM satellite radio antenna amplifier 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 8.
7	INSPECT SIRIUSXM SATELLITE RADIO ANTENNA AMPLIFIER • Inspect the siriusXM satellite radio antenna amplifier. (See CENTER ROOF ANTENNA INSPECTION.) • Is the siriusXM satellite radio antenna amplifier normal?	Yes	Go to the next step.
7		No	Replace the siriusXM satellite radio antenna amplifier, then go to the next step. (See CENTER ROOF ANTENNA REMOVAL/INSTALLATION.)
8	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Clear the DTC for the connectivity master unit (CMU) 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 (CMU) using the M-MDS. (See DTC INSPECTION [CONNECTIVITY MASTER UNIT].) • Is the same Pending DTC present?	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.
8		No	Go to the next step.
9	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].)
9		No	DTC troubleshooting completed.