DESCRIPTION
The DCM (telematics transceiver) sends a mute signal to the stereo component amplifier assembly.
The stereo component amplifier assembly controls the volume according to the mute signal from the DCM (telematics transceiver).
WIRING DIAGRAM
PROCEDURE
1. |
INSPECT DCM (TELEMATICS TRANSCEIVER) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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|
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) |
(a) Disconnect the N11 stereo component amplifier assembly connector.
(b) Disconnect the F39 DCM (telematics transceiver) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
N11-24 (TMUT) - F39-17 (MUTE) |
Always |
Below 1 Ω |
N11-24 (TMUT) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY |
(a) Reconnect the N11 stereo component amplifier assembly connector.
(b) Disconnect the F39 DCM (telematics transceiver) connector.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
OK | ![]() |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
NG | ![]() |
REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY |
Precaution
PRECAUTION
1. PRECAUTIONS FOR EACH FUNCTION
(a) Precautions for the key:
The key is a precision instrument. Be sure to observe the following:
(1) Do not drop or strike the key.
(2) Do not keep the key in a high temperature area for a long ...
Lost Communication with Gateway Module (Power Management2) (U1002)
DESCRIPTION
The power management control ECU stores this DTC when no signals can
be received from the ECUs that are memorized as those connected to the power
management bus.
When the power management control ECU receives a response signal f ...