Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Vehicle Information Not Obtained (C1A02)

Toyota Tacoma 2015-2018 Service Manual / Pre-collision / Pre-collision System / 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.

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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.

(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

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 FRONT CONSOLE BOX (See page ) 2. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY (a) Move the shift lever to N. (b) Disconnect the end of the transmission control cable assembly from the transmission floor shift assembly. Text in Illustration ...

Driver Side Door Entry Lock Function does not Operate
DESCRIPTION If the entry lock function does not operate for the driver door only, but the entry unlock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the front door outside handle assembly LH (lock sensor ...

Invalid Data Received From Vehicle Dynamics Control Module (U0416)
DESCRIPTION This DTC is detected if a wheel speed malfunction signal is sent from the skid control ECU (brake actuator assembly). DTC No. Detection Item DTC Detection Condition Trouble Area U0416 Invalid Data Received From V ...

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