Toyota CH-R Service Manual: Removal

Toyota CH-R Service Manual / Power Assist Systems / Power Steering Ecu / Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the power steering ECU assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement Part or Procedure

Necessary Procedures

Effects / Inoperative when not performed

Link

Disconnect cable from negative battery terminal

Initialize back door lock

Power door lock control system

Memorize steering angle neutral point

Lane departure alert system (w/ Steering Control)

Pre-collision system

Power steering ECU assembly
  • Torque sensor zero point calibration
  • Assist map writing
  • DTCs are stored
  • EPS warning light illuminates

PROCEDURE

1. REMOVE STEERING COLUMN ASSEMBLY

Click here

2. REMOVE POWER STEERING ECU ASSEMBLY

NOTICE:

  • Do not drop the power steering ECU assembly, strike it with tools or subject it to impacts.
  • If the power steering ECU assembly is subjected to an impact, replace it with a new one.
  • Do not pull the wire harness of the electric power steering column sub-assembly.
  • Do not allow any moisture to come into contact with the power steering ECU assembly.
  • Do not loosen any bolts not mentioned in the procedure.
  • Do not allow any foreign matter to contaminate the power steering ECU assembly.

(a) Disconnect the connector.

(b) for Type A:

(1) Using a T40 "TORX" socket wrench, remove the 2 screws and power steering ECU assembly from the electric power steering column sub-assembly.

(c) for Type B:

(1) Remove the 2 bolts and power steering ECU assembly from the electric power steering column sub-assembly.

3. REMOVE ELECTRIC POWER STEERING MOTOR SHAFT DAMPER

(a) Remove the electric power steering motor shaft damper from the electric power steering column sub-assembly.
    Installation
    INSTALLATION PROCEDURE 1. INSTALL ELECTRIC POWER STEERING MOTOR SHAFT DAMPER Grease (a) Apply grease to a new electric power steering motor shaft damper. NOTICE: F ...

    Power Steering System
    ...

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