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 |
Steering Angle Sensor Zero Point Malfunction (C1290)
DESCRIPTION
The skid control ECU (brake actuator assembly) acquires steering angle sensor
zero point every time the ignition switch is turned ON and the vehicle is driven
at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the
previous zero point.
If front wheel alig ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL STEERING COLUMN ASSEMBLY
(a) Install the steering column assembly with the 2 nuts and bolt.
Torque:
21 N·m {214 kgf·cm, 15 ft·lbf}
(b) Connect each of the connectors to the steering column assembly.
(c) Connect the wire harness clamps to the steering colu ...
Noise Occurs
PROCEDURE
1.
NOISE CONDITION
(a) Check from which direction the noise comes (front left or right, or rear
left or right).
OK:
The location of the noise source can be determined.
NG
GO TO STEP 3
OK
...