Toyota Tundra Service Manual: Destination Information Undefined (C1AB8)

Toyota Tundra Service Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Blind Spot Monitor System / Destination Information Undefined (C1AB8)

DESCRIPTION

This DTC is stored when correct destination information is not sent from the main body ECU (multiplex network body ECU) and destination information cannot be confirmed after a blind spot monitor sensor has been replaced.

DTC No.

DTC Detection Condition

Trouble Area

C1AB8

The blind spot monitor sensor cannot communicate with the main body ECU
  • CAN communication system
  • Main body ECU (multiplex network body ECU)
  • Blind spot monitor sensor LH
  • Blind spot monitor sensor RH

CAUTION / NOTICE / HINT

NOTICE:

  • When checking for DTCs, make sure that the blind spot monitor system is turned on.
  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

PROCEDURE

1.

CHECK DTC

(a) Check for CAN communication system DTCs.

Click here

OK:

CAN communication system DTCs are not output.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

2.

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Replace the main body ECU (multiplex network body ECU) with a new one.

Click here

(b) Clear the DTCs.

Click here

(c) Recheck for DTCs and check if the same DTC is output again.

Click here

Result

Proceed to

No DTCs are output.

A

DTC C1AB8 is output ("Blind Spot Monitor Master").

B

DTC C1AB8 is output ("Blind Spot Monitor Slave").

C
A

END (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] WAS DEFECTIVE)
B

REPLACE BLIND SPOT MONITOR SENSOR RH

C

REPLACE BLIND SPOT MONITOR SENSOR LH

    Blind Spot Monitor Slave Module (C1AB7)

    Blind Spot Monitor Master Module Beam Axis Inspection Incomplete (C1ABB)

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