Toyota CH-R Service Manual: Lost Communication With ECM/PCM "A" (U0100,U0129,U023A)

Toyota CH-R Service Manual / Power Assist Systems / Power Steering System / Lost Communication With ECM/PCM "A" (U0100,U0129,U023A)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

U0100

Lost Communication With ECM/PCM "A"

Lost communication with ECM

  • CAN communication system
  • ECM

EPS warning light: Does not come on

The ECU judges the system has returned to normal or the ignition switch is turned ON again

-

U0129

Lost Communication with Brake System Control Module

Lost communication with skid control ECU (brake actuator assembly)

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

EPS warning light: Comes on

The ECU judges the system has returned to normal or the ignition switch is turned ON again

-

U023A

Lost Communication with Front Camera Module

Lost communication with forward recognition camera

  • CAN communication system
  • Forward recognition camera

EPS warning light: Does not come on

The ECU judges the system has returned to normal or the ignition switch is turned ON again

w/ Toyota Safety Sense P

PROCEDURE

1.

GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

Click here

NEXT

END

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