DTC B1D55:13 [TELEMATICS COMMUNICATION UNIT (TYPE-B)]


id1602a7016600


Outline

System malfunction location

TEL antenna No.2 circuit malfunction

Detection condition
•  The telematics communication unit detects an open circuit in the TEL antenna No.2 circuit for 5 s or more.
Fail-safe
Not applicable
Possible cause
•  TEL antenna No.2 connector or terminal malfunction
•  Telematics communication unit connector or terminal malfunction
•  Open circuit in TEL antenna No.2 signal circuit
•  TEL antenna No.2 malfunction
•  Telematics communication unit malfunction


Diagnostic Procedure

Step

Inspection

Results

Action

1
INSPECT TEL ANTENNA No.2 CONNECTOR FOR MALFUNCTION
•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)
•  Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
2
INSPECT TELEMATICS COMMUNICATION UNIT CONNECTOR FOR MALFUNCTION
•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)
•  Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
3
INSPECT TEL ANTENNA No.2 SIGNAL CIRCUIT FOR OPEN CIRCUIT
•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)
•  Is the circuit normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
4
INSPECT TEL ANTENNA No.2 FOR MALFUNCTION DEPENDING ON REPEATABILITY
•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Perform the DTC inspection for the telematics communication unit.
(Refer to the [DTC INSPECTION] in the workshop manual)
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)
If the CAN communication is normal, replace the TEL antenna No.2 and perform the repair completion verification.
(Refer to the [TEL ANTENNA REMOVAL/INSTALLATION] in the workshop manual)
No
Go to repair completion verification.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Perform the DTC inspection for the telematics communication unit.
(Refer to the [DTC INSPECTION] in the workshop manual)
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the telematics communication unit, then go to the next step.
(Refer to the [TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION] in the workshop manual)
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTC IS DISPLAYED
•  Perform the DTC inspection.
(Refer to the [DTC INSPECTION] in the workshop manual)
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.