Toyota Corolla Cross: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
Hybrid Control System|
Symptom | Suspected Area |
Link |
|---|---|---|
| Cannot enter EV mode |
CAN Communication System |
|
|
Pattern Select Switch EV Mode Circuit |
| |
|
EV mode switch (electric parking brake switch assembly) |
| |
|
Combination meter assembly |
| |
|
Cannot enter Sport/Eco/Normal mode |
CAN Communication System |
|
|
Drive mode select switch (combination switch assembly) |
| |
|
Drive Mode Select Switch Circuit |
| |
|
Combination meter assembly |
| |
|
Shift range position cannot be changed by shifting to "+" or "-" |
Transmission Control Switch Circuit |
|
|
Shift Paddle Switch Circuit |
| |
|
Hunting (Poor idle) | Drive Start Control |
|
|
Hesitation and/or poor acceleration |
Brake Override System |
|
|
Drive Start Control |
| |
|
Shift position indicator is malfunctioning |
Indicator Circuit |
|
|
Ignition switch does not turn to ON (READY) |
Smart Key System (for Start Function) |
|
|
ECU Power Source Circuit (Hybrid Control System) |
| |
|
Hybrid vehicle control ECU |
| |
|
ECM |
| |
|
Loud rattle from hybrid vehicle transaxle |
Check idle learning |
|
|
Transmission input damper assembly |
| |
|
Hybrid vehicle transaxle assembly |
| |
|
Engine misfire | - | |
|
"Maintenance Required for Traction Battery Cooling Parts See Owner's Manual" is displayed on the multi-information display. |
Make sure the HV battery cooling system intake port is not blocked. |
- |
| Make sure there are no gaps between the connecting parts of the ducts. |
- | |
| Clean the No. 1 HV battery intake filter. Check for entry of foreign matter. |
| |
|
Abnormal sound is heard from the area around the No. 1 hybrid battery intake duct. |
Make sure the HV battery cooling system intake port is not blocked. |
- |
| Make sure there are no gaps between the connecting parts of the ducts. |
- | |
| Clean the No. 1 HV battery intake filter. Check for entry of foreign matter. |
| |
|
"Have Traction Battery Inspected" is displayed on the multi-information display. |
"Have Traction Battery Inspected" is displayed. |
|
.gif)
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU HYBRID VEHICLE CONTROL ECU
Connector Code Terminal No.
Symbol Terminal Description
I249 1
E1 ECU ground
2 -
- 3
S
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The hybrid vehicle control ECU has a self-diagnosis system. If the computer, Hybrid Control System, or a component is not working properly, the ECU records the conditi
Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTCS (a) Check the DTCs and freeze frame data, and then write them down. Powertrain > Hybrid Control > Trouble Codes
(b) Check the details of the DTCs.
Disp
SEE MORE:
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE BOOSTER ASSEMBLY
(a) Airtightness check
(1) Start the engine and stop it after 1 or 2 minutes. Slowly
depress the brake pedal several times.
HINT:
If the brake pedal can be depressed nearly to the floor
the first time, but
Using the mechanical key
(vehicles with a smart key
system)
To take out the mechanical key,
slide the release button and take
the key out.
The mechanical key can only be
inserted in one direction, as the
key only has grooves on one
side. If the key cannot be
inserted in a lock cylinder, turn it
over and re-attempt to insert it.
After using the mechanical k
