DESCRIPTION
WIRING DIAGRAM
PROCEDURE
1. |
CHECK MICROPHONE (OPERATION CHECK) |
(a) Enter the "Microphone Check" screen. Refer to Check Microphone in Operation Check (See page ). |
|
(b) When a voice is input into the microphone, check that the microphone input level meter changes according to the input voice.
OK:
Check result is normal.
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY)) |
(a) Disconnect the E40 navigation receiver assembly connector.
(b) Disconnect the P12 inner rear view mirror assembly (amplifier microphone assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E40-4 (MACC) - P12-9 (ACC) |
Always |
Below 1 Ω |
E40-5 (MIN+) - P12-11 (MIC+) |
Always |
Below 1 Ω |
E40-19 (MIN-) - P12-12 (MIC-) |
Always |
Below 1 Ω |
E40-6 (SNS2) - P12-10 (SGND) |
Always |
Below 1 Ω |
E40-4 (MACC) - Body ground |
Always |
10 kΩ or higher |
E40-5 (MIN+) - Body ground |
Always |
10 kΩ or higher |
E40-19 (MIN-) - Body ground |
Always |
10 kΩ or higher |
E40-18 (SGND) - Body ground |
Always |
10 kΩ or higher |
E40-6 (SNS2) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT NAVIGATION RECEIVER ASSEMBLY |
(a) Reconnect the E40 navigation receiver assembly connector.
(b) Reconnect the P12 inner rear view mirror assembly (amplifier microphone assembly) connector.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E40-18 (SGND) - Body ground |
Always |
Below 1 Ω |
E40-19 (MIN-) - Body ground |
Always |
Below 1 Ω |
*a |
Component with harness connected (Navigation Receiver Assembly) |
NG |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
4. |
INSPECT INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) |
(a) Remove the inner rear view mirror assembly (amplifier microphone assembly) (See page ).
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG |
REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) |
|
5. |
INSPECT INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) |
(a) Reconnect the E40 navigation receiver assembly connector.
(b) Reconnect the P12 inner rear view mirror assembly (amplifier microphone assembly) connector.
(c) Turn the ignition switch to ACC.
(d) Connect an oscilloscope to terminals 11 (MIC+) and 12 (MIC-) of the P12 inner rear view mirror assembly (amplifier microphone assembly) connector. |
|
(e) Check the waveform of the amplifier microphone assembly using the oscilloscope.
Result |
Proceed to |
---|---|
A waveform synchronized with the voice input to the inner rear view mirror assembly (amplifier microphone assembly) is output |
A |
A waveform synchronized with the voice input to the inner rear view mirror assembly (amplifier microphone assembly) is not output |
B |
*a |
Component with harness connected (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly)) |
A |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
B |
REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) |
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK FOR TRANSPONDER KEY ECU DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Immobiliser / Trouble Codes.
(e) Check the det ...
Inside Vehicle
General Maintenance
GENERAL MAINTENANCE
CAUTION / NOTICE / HINT
These are maintenance and inspection items that are considered to be
the owner's responsibility.
The owner can do them or they can have them done at a service center.
The ...
Lost Communication with Clearance Warning ECU (U1110)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
U1110
No communication from the clearance warning ECU assembly continues.
Clearance warning ECU assembly branch wire o ...