Toyota Corolla Cross: 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.
- for HEV Model :Click here
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- for Gasoline Model: Click here
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Heavy steering |
Front tires (improperly inflated, unevenly worn) |
|
|
Front wheel alignment (incorrect) |
|
|
|
Front suspension (Lower ball joint) |
|
|
|
Steering gear assembly |
|
|
|
Auxiliary battery and power source circuit (for GasolineModel) |
|
|
|
Auxiliary battery and power source circuit (for HEVModel) |
|
|
|
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) |
|
|
|
Heavy Steering (EPS Warning Light (Yellow)) |
Heavy Steering Feel (EPS Warning Light (Yellow)) |
|
|
Steering effort differs between right and left or is uneven |
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) |
for Gasoline Model:
for HEV Model:
|
|
Speed sensor (for GasolineModel) |
|
|
|
Speed sensor (for HEVModel) |
|
|
|
Torque sensor (Electric power steering column sub-assembly) |
|
|
|
Power steering ECU assembly |
|
|
|
CAN communication system (for HEV Model) |
|
|
|
CAN communication system (for Gasoline Model) |
|
|
|
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 cable with 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) |
|
|
|
EPS warning light remains on |
EPS warning light circuit |
|
|
Abnormal feel at steering end position |
Refer to "Abnormal Feel at Steering End Position" |
|
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU
CHECK POWER STEERING ECU ASSEMBLY
*a
Component without harness connected
(Power Steering ECU Assembly)
-
-
(a) Measure the
Diagnosis System
DIAGNOSIS SYSTEM
DTC
The rack and pinion power steering gear assembly stores a DTC when it detects
a malfunction in the ECU and power steering system circuit.
CHECK DLC3
(a) Check the DLC
Freeze Frame Data
FREEZE FRAME DATA
FREEZE FRAME DATA
NOTICE:
It is difficult to show the specified values (judgment values) clearly because
freeze frame data values change significantly due to differences in
SEE MORE:
Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL PRESSURE SENSOR
(a) Check the fuel pressure sensor output voltage.
(1) Apply 5 V between terminals 1 (VC) and 2 (E2).
NOTICE:
Be careful when connecting the leads as the fuel pressure sensor may be damaged if the leads are connected to the wrong
Utility
UTILITY
DESCRIPTION
(a) Refer to the table below and then perform the necessary operation
according to the part to be replaced in order to perform calibration.
Parts to be Replaced / Operation
Necessary Operation
Skid control ECU (brake actuator assembly)
