Toyota Corolla Cross: Hybrid System Indicator Malfunction
DESCRIPTION
A hybrid system indicator has been included on this vehicle. In this circuit, the combination meter assembly receives the hybrid system indicator signal from the hybrid vehicle control ECU via CAN communication. The combination meter assembly controls the operation of the hybrid system indicator according to the hybrid system indicator signal received from the hybrid vehicle control ECU via CAN communication.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
- When replacing the combination meter assembly, update the ECU security key.
Click here
.gif)
- Before replacing the hybrid vehicle control ECU, refer to Registration.
Click here
PROCEDURE
|
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication DTCs are output.
Click here
|
Result | Proceed to |
|---|---|
|
DTCs are not output | A |
|
DTCs are output | B |
| B |
.gif) | GO TO CAN COMMUNICATION SYSTEM |
|
.gif)
| 2. |
CHECK FOR DTC (HYBRID CONTROL SYSTEM) |
(a) Check if hybrid control system DTCs are output.
Powertrain > Hybrid Control > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTCs are not output | A |
|
DTCs are output | B |
| B |
| GO TO HYBRID CONTROL SYSTEM |
|
| 3. |
READ VALUE USING GTS |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Combination Meter > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
HV/EV System Indicator |
Hybrid system indicator value |
Min.: -101%, Max.: 511% or Unset |
See [Normal Condition 1] |
"Unset" is displayed when the vehicle is stopped and the ignition switch is ON (READY). |
HINT:
[Normal Condition 1]: HV/EV System Indicator- Refer to the following table to find the approximate indicated value of the hybrid system indicator based on the value of the Data List item:
Data List: HV/EV System Indicator (%)
Hybrid System Indicator Indication
Unset
Not indicated
-100
Approximately 1 is indicated
-50
Approximately 2 is indicated
0
Approximately 3 is indicated
50
Approximately 4 is indicated
100
Approximately 5 is indicated
200
Approximately 6 is indicated
300
Approximately 7 is indicated
400
Approximately 8 is indicated
500
Approximately 9 is indicated
.png)
*A
for 7 Inch Type Multi-information Display
|
Tester Display |
|---|
| HV/EV System Indicator |
|
Result | Proceed to |
|---|---|
|
The value displayed in the Data List and on the hybrid system indicator approximately match |
A |
| The value displayed in the Data List and on the hybrid system indicator do not match |
B |
| A |
| REPLACE HYBRID VEHICLE CONTROL ECU |
| B |
| REPLACE COMBINATION METER ASSEMBLY |
READ NEXT:
Operating Light Control Rheostat does not Change Light Brightness
DESCRIPTION The combination meter assembly receives signals from this circuit to adjust the illumination of the combination meter assembly. The combination meter assembly sets the illumination level b
Steering Pad Switch Circuit
DESCRIPTION The combination meter assembly and steering pad switch assembly are connected via direct line.
The multi-information display in the combination meter assembly is operated using the sw
Engine Oil Level Sensor Circuit
DESCRIPTION The combination meter assembly and engine oil level sensor are connected via direct line. The combination meter assembly determines the engine oil level based on the engine oil level senso
SEE MORE:
Backup Boost Converter Circuit
DESCRIPTION A backup boost converter is built into the engine stop and start ECU. The backup boost converter helps maintain the power source voltage when the engine is restarted by stop and start control.
This prevents various functions such as the audio and visual system from malfunctioning if th
Removal
REMOVAL
CAUTION / NOTICE / HINT
COMPONENTS (REMOVAL)
Procedure
Part Name Code
1
REAR WHEELS
-
-
-
-
2
DRAIN BRAKE FLUID
-
-
