DESCRIPTION
The radio and display receiver assembly and map light assembly (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) 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 - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)) |
(a) Disconnect the G49 radio and display receiver assembly connector.
(b) Disconnect the U2 map light assembly (telephone microphone assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
G49-6 (SNS2) - U2-15 (SNS2) |
Always |
Below 1 Ω |
G49-19 (MIN-) - U2-12 (MCO-) |
Always |
Below 1 Ω |
G49-6 (SNS2) - Body ground |
Always |
10 kΩ or higher |
G49-19 (MIN-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK | ![]() |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
4. |
REPLACE TELEPHONE MICROPHONE ASSEMBLY |
(a) Replace the telephone microphone assembly (See page
).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check if the same DTC is output again.
OK:
No DTCs are output.
OK | ![]() |
END |
NG | ![]() |
REPLACE MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) |
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
A bolt without a torque specification is shown in the standard bolt chart (See
page ).
PROCEDURE
1. INSTALL FRONT BUMPER BRACKET SUB-ASSEMBLY LH
(a) Install the front bumper bracket sub-assembly LH with the 2 ...
Vehicle Speed Signal Malfunction (B2282,B2283)
DESCRIPTION
The power management control ECU and the combination meter are connected by a
cable and the CAN communication lines. This DTC is stored when the vehicle speed
signal information from the cable and the vehicle speed signal information from
th ...