WIRING DIAGRAM
for TMMT Made
for TMC Made
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Check the radio automatic station search function.
(1) Check the radio automatic station search function by activating it.
Result |
Proceed to |
---|---|
Automatic station search function does not stop |
A |
Automatic station search function stops on a station |
B |
B |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
2. |
CHECK OPTIONAL COMPONENTS |
(a) Check if any optional components that may decrease reception capacity, such as sunshade film or a telephone antenna, are installed.
Result |
Proceed to |
---|---|
Optional components are not installed |
A |
Optional components are installed |
B |
NOTICE:
Do not remove optional components without the permission of the customer.
B |
REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE) |
|
3. |
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Preparation for check (1) Disconnect the antenna connector from the radio and display receiver assembly. |
|
(b) Check for noise
(1) Turn the ignition switch to ACC with the radio and display receiver assembly connector connected.
(2) Turn the radio on and tune into AM mode.
(3) Place a screwdriver, thin wire or other metal object on the radio and display receiver assembly antenna jack and check that noise can be heard from the speakers.
OK:
Noise can be heard from the speakers.
NG |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
4. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Disconnect the RA radio and display receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
5. |
REPLACE ANTENNA CORD SUB-ASSEMBLY |
(a) Replace the antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally.
Click here
OK:
Radio broadcasts can be received normally.
Result |
Proceed to |
---|---|
OK |
A |
NG (for TMMT Made) |
B |
NG (for TMC Made) |
C |
A |
END (ANTENNA CORD SUB-ASSEMBLY WAS DEFECTIVE) |
C |
GO TO STEP 9 |
|
6. |
CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY |
(a) Disconnect the No. 2 antenna cord sub-assembly connector from the antenna cord sub-assembly. |
|
(b) Disconnect the No. 2 antenna cord sub-assembly connector from the No. 3 antenna Cord sub-assembly.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
AB-5 - BC-5 |
Always |
Below 1 Ω |
AB-5a - BC-5a |
Always |
Below 1 Ω |
AB-5 - Body ground |
Always |
10 kΩ or higher |
AB-5a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY |
|
7. |
CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLY |
(a) Disconnect the No. 3 antenna cord sub-assembly connector from the No. 2 antenna cord sub-assembly. |
|
(b) Disconnect the No. 3 antenna cord sub-assembly connector from the roof antenna assembly.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
BC-5 - CD2 |
Always |
Below 1 Ω |
BC-5a - CD-2a |
Always |
Below 1 Ω |
BC-5 - Body ground |
Always |
10 kΩ or higher |
BC-5a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY |
|
8. |
REPLACE ROOF ANTENNA ASSEMBLY |
(a) Replace the roof antenna assembly with a new or known good one and check if radio broadcasts can be received normally.
Click here
OK:
Radio broadcasts can be received normally.
OK |
END (ROOF ANTENNA ASSEMBLY WAS DEFECTIVE) |
NG |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
9. |
CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY |
(a) Disconnect the No. 2 antenna cord sub-assembly connector from the antenna cord sub-assembly. |
|
(b) Disconnect the No. 2 antenna cord sub-assembly connector from the No. 3 antenna Cord sub-assembly.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
AB-1 - BC-1 |
Always |
Below 1 Ω |
AB-1a - BC-1a |
Always |
Below 1 Ω |
AB-1 - Body ground |
Always |
10 kΩ or higher |
AB-1a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY |
|
10. |
CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLY |
(a) Disconnect the No. 3 antenna cord sub-assembly connector from the antenna cord sub-assembly. |
|
(b) Disconnect the No. 3 antenna cord sub-assembly connector from the telephone antenna assembly.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
BC-1 - CD-2 |
Always |
Below 1 Ω |
BC-1a - CD-2a |
Always |
Below 1 Ω |
BC-1 - Body ground |
Always |
10 kΩ or higher |
BC-1a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY |
|
11. |
REPLACE ROOF ANTENNA ASSEMBLY |
(a) Replace the roof antenna assembly with a new or known good one and check if radio broadcasts can be received normally.
Click here
OK:
Radio broadcasts can be received normally.
OK |
END (ROOF ANTENNA ASSEMBLY WAS DEFECTIVE) |
NG |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
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