Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: FCM Destination Information Unmatched (C1AA1)

Toyota Tacoma 2015-2018 Service Manual / Cruise Control / Lane Departure Alert System / FCM Destination Information Unmatched (C1AA1)

DESCRIPTION

When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store country specification information received from the main body ECU (multiplex network body ECU) and ECM. If the country specification information stored in the forward recognition camera is different from that stored in the main body ECU (multiplex network body ECU) or ECM, DTC C1AA1 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AA1

FCM Destination Information Unmatched

3 seconds after the ignition switch is turned to ON, destination information stored in the forward recognition camera and that received from the main body ECU (multiplex network body ECU) or ECM do not match for 5 seconds or more.

  • CAN communication system
  • Forward recognition camera
  • Main body ECU (Multiplex network body ECU)
  • ECM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
  • If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera learning.

    Click here

HINT:

This DTC is stored when the country specification information stored in the forward recognition camera and that stored in the main body ECU (multiplex network body ECU) do not match. If the forward recognition camera or main body ECU (multiplex network body ECU) has been replaced, check if a forward recognition camera or main body ECU (multiplex network body ECU) from another vehicle was used.

PROCEDURE

1.

CHECK DTC OUTPUT (CAN COMMUNICATION DTC OUTPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.

(e) Check for DTCs.

Click here

Result

Proceed to

DTC U0142 is not output

A

DTC U0142 is output

B

B

GO TO CAN COMMUNICATION SYSTEM

A

2.

CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.

(e) Clear the DTCs.

Click here (f) Make sure that the DTC detection conditions are met.

(f) Make sure that the DTC detection conditions are met.

HINT:

If the following procedure is not performed, the previously output DTC cannot be detected.

(g) Check for DTCs.

Click here

Result

Proceed to

DTC C1AA1 is output

A

DTC C1AA1 is not output

B

B

USE SIMULATION METHOD TO CHECK

A

3.

REPLACE FORWARD RECOGNITION CAMERA

(a) Replace the forward recognition camera.

Click here (b) Adjust the forward recognition camera.

(b) Adjust the forward recognition camera.

Click here

NEXT

4.

CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.

(e) Clear the DTCs.

Click here (f) Make sure that the DTC detection conditions are met.

(f) Make sure that the DTC detection conditions are met.

HINT:

If the following procedure is not performed, the previously output DTC cannot be detected.

(g) Check for DTCs.

Click here

Result

Proceed to

DTC C1AA1 is output

A

DTC C1AA1 is not output

B

A

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

B

END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

FCM Destination Information Uninitialized (C1AAA)
DESCRIPTION When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store the country specification information received from the main body ...

Vehicle Speed Tolerance Malfunction (C1AA2)
DESCRIPTION The forward recognition camera receives vehicle speed tolerance signals from the combination meter assembly. If the combination meter assembly detects a vehicle speed tolerance malfun ...

Other materials:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT CURTAIN SHIELD AIRBAG ASSEMBLY (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check (See page ). (b) With the curtain shield airbag assembly installed on the vehicle, perform a visual check. If there are any def ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE FRONT LICENSE PLATE BRACKET (a) Remove the 2 screws and front license plate bracket. 2. REMOVE NO. 4 ENGINE ROOM WIRE (w/ Fog Light) (a) Disconnect the 2 connectors. ...

Air Outlet Damper Control Servo Motor Circuit (B1443/43)
DESCRIPTION This No. 1 air conditioning radiator damper servo sub-assembly (for mode switching) is controlled by the air conditioning amplifier assembly and moves the mode damper to the desired position. DTC No. DTC Detection Condition Trouble Area ...

В© 2011-2019 Copyright www.ttguide.net