Toyota Corolla Cross: DCM Data Signal Circuit between Radio Receiver and DCM
DESCRIPTION
This circuit is used to send and receive signals between the DCM (telematics transceiver) and the radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (DCM [TELEMATICS TRANSCEIVER] - RADIO AND DISPLAY RECEIVER ASSEMBLY) |
(a) Disconnect the I253 and t5 radio and display receiver assembly.
(b) Disconnect the I200 and t1 DCM (telematics transceiver) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
t5-1 (USB+) - t1-2 (USB+) |
Always |
Below 1 Ω |
|
t5-2 (USB-) - t1-1 (USB-) |
Always |
Below 1 Ω |
|
t5-3 (USBS) - t1-3 (USBS) |
Always |
Below 1 Ω |
|
I253-18 (USBV) - I200-15 (USBV) |
Always |
Below 1 Ω |
|
I253-17 (USBG) - I200-31 (USBG) |
Always |
Below 1 Ω |
|
I253-15 (VOR+) - I200-17 (VOT+) |
Always |
Below 1 Ω |
|
I253-16 (VOR-) - I200-33 (VOT-) |
Always |
Below 1 Ω |
|
t5-1 (USB+) - Body ground |
Always |
10 kΩ or higher |
|
t5-2 (USB-) - Body ground |
Always |
10 kΩ or higher |
|
t5-3 (USBS) - Body ground |
Always |
10 kΩ or higher |
|
I253-18 (USBV) - Body ground |
Always |
10 kΩ or higher |
|
I253-17 (USBG) - Body ground |
Always |
10 kΩ or higher |
|
I253-15 (VOR+) - Body ground |
Always |
10 kΩ or higher |
|
I253-16 (VOR-) - Body ground |
Always |
10 kΩ or higher |
|
I253-4 (SGND) - Body ground |
Always |
10 kΩ or higher |
| OK | .gif)
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Warning Notification Function Malfunction
PROCEDURE
1.
CHECK PROBLEM SYMPTOM (WARNING NOTIFICATION FUNCTION)
(a) Check the problem symptom.
(1) Check the problem symptom of the warning notification function.
Remote Service Malfunction
PROCEDURE
1.
CHECK CAN COMMUNICATION SYSTEM
(a) Enter the following menus: Bus Check.
for HEV Model:
Click here
for Gasoline Model:
Click here
(b)
Brake
h1 {color:red;} h2 {color:blue;} h3 {color:green;}
SEE MORE:
Before driving
Observe the following
before starting off in the
vehicle to ensure safety of
driving.
Floor mat
Use only floor mats designed
specifically for vehicles of the
same model and model year as
your vehicle. Fix them securely
in place onto the carpet.
1. Insert the retaining hooks
(clips) into the floor ma
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 REAR SEAT CUSHION ASSEMBLY
- -
- -
2 REAR FLOOR SERVICE HOLE COVER
58325M -
- -
3 FUEL TANK PRESSURE SENSOR (VAPOR PRESSURE SENSO
