Toyota Tundra Service Manual: Lost Communication With Vehicle Dynamics Control Module (U0122)

DESCRIPTION

The ECM receives signals from the skid control ECU (brake actuator assembly) via CAN communication.

CAUTION / NOTICE / HINT

HINT:

Refer to troubleshooting in CAN Communication System.

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PROCEDURE

(a) Clear the DTCs.

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

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

1. Drive the vehicle at a speed for which cruise control operation is possible.
2. Turn the cruise control system on using the cruise control main switch (ON-OFF button).
3. Push the cruise control main switch to -SET to begin control of vehicle speed using the cruise control system.

(c) Check for DTCs.

Click here

A

USE SIMULATION METHOD TO CHECK

B

GO TO CAN COMMUNICATION SYSTEM