DESCRIPTION
The radio and display receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
This DTC is stored when a microphone connection detection signal line is disconnected.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1579 |
Telephone microphone signal is lost. |
|
WIRING DIAGRAM
PROCEDURE
|
1. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Remove the radio and display receiver assembly with connectors still connected.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
|
2. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY) |
(a) Disconnect the R31 radio and display receiver assembly connector.
(b) Disconnect the T26 telephone microphone assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R31-6 (SNS2) - T26-3 (SNS2) |
Always |
Below 1 Ω |
|
R31-19 (MIN-) - T26-4 (MIC-) |
Always |
Below 1 Ω |
|
R31-6 (SNS2) - Body ground |
Always |
10 kΩ or higher |
|
R31-19 (MIN-) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT TELEPHONE MICROPHONE ASSEMBLY |
(a) Remove the telephone microphone assembly.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK | |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG | |
REPLACE TELEPHONE MICROPHONE ASSEMBLY |
Sending Malfunction (Navigation to APGS) (U0073,U0100,U0140,U0155)
Satellite Radio Broadcast cannot be ReceivedInspection
INSPECTION
PROCEDURE
1. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY
(a) Check the operation of the front seat cushion heater assembly.
(1) Apply battery voltage and check the operation of the front seat cushion
heater assembly.
OK:
Connection
...
Short in Side Squib RH Circuit (B1820/55-B1823/55)
DESCRIPTION
The side squib RH circuit consists of the airbag sensor assembly and the front
seat airbag assembly RH.
The circuit signals the SRS to deploy when airbag deployment conditions are met.
These DTCs are set when a malfunction is detected in the side squib RH circuit.
DTC No ...
Parking Brake Switch Circuit
DESCRIPTION
This circuit is from the parking brake switch assembly to the navigation receiver
assembly.
WIRING DIAGRAM
PROCEDURE
1.
CHECK VEHICLE SIGNAL (OPERATION CHECK)
(a) Display the "Vehicle Signal Check Mode" screen (See page
). ...