Toyota CH-R Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table.
- Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Heavy steering |
Front tires (improperly inflated, unevenly worn) |
|
|
Front wheel alignment (incorrect) |
|
|
|
Front suspension (Lower ball joint) |
|
|
|
Steering gear assembly |
|
|
|
Battery and power source circuit |
|
|
|
Power source voltage of power steering ECU assembly |
|
|
|
Power steering ECU assembly |
|
|
|
Vehicle condition (Steering wheel is turned from left to right repeatedly with vehicle stopped or heavy load is continuously applied to vehicle) |
|
|
|
Steering effort differs between right and left or is uneven |
Rotation angle sensor initialization and torque sensor zero point calibration incomplete |
|
|
Front tires (improperly inflated, unevenly worn) |
|
|
|
Front wheel alignment (incorrect) |
|
|
|
Front suspension (Lower ball joint) |
|
|
|
Steering gear assembly |
|
|
|
Torque sensor (Electric power steering column sub-assembly) |
|
|
|
Electric power steering column sub-assembly |
|
|
|
Power steering ECU assembly |
|
|
|
While driving, steering effort does not change in accordance with vehicle speed, or steering wheel does not return to its centered position easily |
Skid control ECU (brake actuator assembly) |
|
|
Speed sensor |
|
|
|
Torque sensor (Electric power steering column sub-assembly) |
|
|
|
Power steering ECU assembly |
|
|
|
CAN communication system |
|
|
|
Friction sounds occur when turning steering wheel during low speed driving |
Power steering motor (Power steering ECU assembly) |
|
|
Electric power steering column sub-assembly |
|
|
|
Spiral with cable sensor sub-assembly |
|
|
|
Steering column cover contacting steering wheel assembly |
|
|
|
High-pitched sound (squeaking) occurs when turning steering wheel slowly with vehicle stopped |
Power steering motor (Power steering ECU assembly) |
|
|
Steering wheel installation (incorrect) |
|
|
|
Steering wheel vibrates and noise occurs when turning steering wheel from lock to lock |
Power steering motor (Power steering ECU assembly) |
|
|
Electric power steering column sub-assembly |
|
|
|
Steering wheel installation (incorrect) |
|
|
|
DTCs cannot be output (terminals TC and CG of the DLC3 are connected) |
TC and CG terminal circuit |
|
|
IG power source circuit |
|
|
|
Meter / gauge system |
|
|
|
EPS warning light remains on |
EPS warning light circuit |
|
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the power steering system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSH ...
Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
Click here
CHECK WARNING LIGHT
(a) When a problem occurs in the power steering system, the EPS warning light
in the combination meter assembl ...
Other materials:
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Operation Check
OPERATION CHECK
STORAGE CHECK (DCU STORAGE CHECK)
NOTICE:
When replacing the radio and display receiver assembly, always replace it with
a new one. If a radio and display receiver assembly which was installed to another
vehicle is used, the following may occur:
A communication malfunc ...
Toyota CH-R Service Manual > Pre-collision System: Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
(e) Check for DTCs.
Click here
Body Electrical > Pre-Collision 2 > Tro ...
Toyota CH-R Owners Manual
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Toyota CH-R Service Manual
- Introduction
- Maintenance
- Audio / Video
- Cellular Communication
- Navigation / Multi Info Display
- Park Assist / Monitoring
- Brake (front)
- Brake (rear)
- Brake Control / Dynamic Control Systems
- Brake System (other)
- Parking Brake
- Axle And Differential
- Drive Shaft / Propeller Shaft
- K114 Cvt
- 3zr-fae Battery / Charging
- Networking
- Power Distribution
- Power Assist Systems
- Steering Column
- Steering Gear / Linkage
- Alignment / Handling Diagnosis
- Front Suspension
- Rear Suspension
- Tire / Wheel
- Tire Pressure Monitoring
- Door / Hatch
- Exterior Panels / Trim
- Horn
- Lighting (ext)
- Mirror (ext)
- Window / Glass
- Wiper / Washer
- Door Lock
- Heating / Air Conditioning
- Interior Panels / Trim
- Lighting (int)
- Meter / Gauge / Display
- Mirror (int)
- Power Outlets (int)
- Pre-collision
- Seat
- Seat Belt
- Supplemental Restraint Systems
- Theft Deterrent / Keyless Entry
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