Toyota Venza manuals

Toyota Venza: Lost Communication with ECM / PCM "A" (U0100,U0129)

Toyota Venza Service Manual / Power Assist Systems / Power Steering System / Lost Communication with ECM / PCM "A" (U0100,U0129)

DESCRIPTION

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

DTC No.

DTC Detection Condition

Trouble Area

U0100

Lost communication with ECM/PCM "A"

  • CAN communication system
  • ECM

U0129

Lost communication with brake system control module

  • CAN communication system
  • Brake actuator assembly (Skid control ECU)

PROCEDURE

1.

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

(a) Clear the DTCs (See page ).


(b) Check for DTCs (See page ).


OK:

DTC is not output.


OK

CHECK INTERMITTENT PROBLEMS


NG

GO TO CAN COMMUNICATION SYSTEM

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK STEERING EFFORT (TORQUE) NOTICE: Some of these service operations may affect the SRS airbags. Read the precautionary notices concerning the SRS airbag sy ...

Assist Map Number Mismatch (C1582)
DESCRIPTION When an incorrect ECM or brake actuator assembly (skid control ECU) is installed after the assist map has been recorded in the power steering ECU, then DTC C1582 is stored because the ...

Other materials about Toyota Venza:

Power Back Door Main Switch
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT POWER BACK DOOR MAIN SWITCH (a) Check that the switch function. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: ...

System Description
SYSTEM DESCRIPTION CAUTION: If using a pacemaker, be sure to read the manual of the pacemaker before using the key, as the radio waves of the key may affect the pacemaker. 1. SMART KEY SYSTEM DESCRIPTION (a) In addition to conventional mechanical key and ...

Headlight Leveling ECU Power Source Circuit
DESCRIPTION This circuit detects the state of the ignition switch, and sends it to the headlight leveling ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the followin ...

© 2016-2026 Copyright www.tovenza.com

0.1514