DESCRIPTION
The navigation receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
This DTC is stored when the microphone connection detection signal is disconnected.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1579 |
Telephone microphone signal is lost. |
|
WIRING DIAGRAM
PROCEDURE
|
1. |
INSPECT NAVIGATION RECEIVER ASSEMBLY |
(a) Remove the navigation receiver assembly with connector still connected.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
|
2. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY) |
(a) Disconnect the N25 navigation receiver assembly connector.
(b) Disconnect the T26 telephone microphone assembly.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
N25-6 (SNS2) - T26-3 (SNS2) |
Always |
Below 1 Ω |
|
N25-19 (MIN-) - T26-4 (MIC-) |
Always |
Below 1 Ω |
|
N25-6 (SNS2) - Body ground |
Always |
10 kΩ or higher |
|
N25-19 (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 (See page
).
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
| NG | |
REPLACE TELEPHONE MICROPHONE ASSEMBLY |
Stereo Component Amplifier Disconnected (B15D3)
Satellite Radio Broadcast cannot be ReceivedProblem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
Additional Key cannot be Registered
DESCRIPTION
If additional registration is not possible, a malfunction in the certification
ECU (smart key ECU assembly), engine switch, electrical key transmitter sub-assembly
or steering lock ECU (steering lock actuator or UPR bracket assembly) is suspected.
CAUTION / NOTICE / HINT
NOTICE ...
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by your Toyota
dealer or a commercial towing service, using a lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
The wheels and axle on the ground must b ...