Toyota Tacoma (2015-2018) Service Manual: Vehicle Information Not Obtained (C1A02)
DESCRIPTION
When a new millimeter wave radar sensor assembly is installed, it receives vehicle specification information from the main body ECU (multiplex network body ECU) and stores the information.
DTC C1A02 is stored when the millimeter wave radar sensor assembly receives the vehicle specification information from the main body ECU (multiplex network body ECU) but cannot store it.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1A02 |
Vehicle Information Not Obtained |
When the vehicle is being driven at a speed of 50 km/h (32 mph) or more, the millimeter wave radar sensor assembly does not have stored vehicle information for 1 second or more. |
Millimeter wave radar sensor assembly |
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle. As a result, a DTC may be stored.
- If the millimeter wave radar sensor assembly has been replaced, be sure
to perform millimeter wave radar sensor assembly adjustment.
Click here
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PROCEDURE
|
1. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1A02 is not output |
A |
|
DTC C1A02 is output |
B |
| A | .gif) |
USE SIMULATION METHOD TO CHECK |
| B | |
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
Yaw Rate Sensor (C1A46)
DESCRIPTION
If the millimeter wave radar sensor assembly receives a yaw rate sensor malfunction
signal from the yaw rate sensor (airbag sensor assembly) or yaw rate sensor zero
point malfunction ...
Front Radar Sensor (C1A10)
DESCRIPTION
When an internal malfunction is detected in the millimeter wave radar sensor
assembly, DTC C1A10 is stored.
DTC No.
Detection Item
DTC Detection Condit ...
Other materials:
Removal
REMOVAL
PROCEDURE
1. REMOVE CLUTCH MASTER CYLINDER ASSEMBLY
(See page )
2. REMOVE TURN OVER SPRING SEAT COMPRESSION SPRING
(a) Remove the compression spring.
3. REMOVE CLUTCH PEDAL SUB-ASSEMBLY
(a) Remove the bolt and nut.
...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use this procedure to troubleshoot the theft deterrent system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
...
Fuel Tank Cap
Inspection
INSPECTION
PROCEDURE
1. INSPECT FUEL TANK CAP ASSEMBLY
(a) Check the appearance of the fuel tank cap assembly.
(1) Check that there is no deformation or damage to the fuel tank cap assembly
or fuel tank cap gasket.
*1
Fuel Tank Cap Gasket
If the ...
