| Symptom | Suspected Area | Link |
|---|---|---|
| Cannot enter EV drive mode | CAN communication system | |
| Combination meter assembly | ||
| EV drive mode switch (combination switch assembly) | ||
| Pattern select switch EV mode circuit | ||
| EV mode indicator light does not illuminate | Combination meter assembly | |
| EV drive mode switch (combination switch assembly) | ||
| Pattern select switch EV mode circuit | ||
| EV mode indicator light does not turn off | Combination meter assembly | |
| EV drive mode switch (combination switch assembly) | ||
| Pattern select switch EV mode circuit | ||
| Cannot enter POWER mode | CAN communication system | |
| Combination meter assembly | ||
| POWER mode switch (combination switch assembly) | ||
| Pattern select switch POWER mode circuit | ||
| POWER mode indicator light does not illuminate | Combination meter assembly | |
| POWER mode switch (combination switch assembly) | ||
| Pattern select switch POWER mode circuit | ||
| POWER mode indicator light does not turn off | Combination meter assembly | |
| POWER mode switch (combination switch assembly) | ||
| Pattern select switch POWER mode circuit | ||
| Cannot enter ECO mode | CAN communication system | |
| Combination meter assembly | ||
| ECO mode switch (combination switch assembly) | ||
| Pattern select switch ECO mode circuit | ||
| ECO mode indicator light does not illuminate | Combination meter assembly | |
| ECO mode switch (combination switch assembly) | ||
| Pattern select switch ECO mode circuit | ||
| ECO mode indicator light does not turn off | Combination meter assembly | |
| ECO mode switch (combination switch assembly) | ||
| Pattern select switch ECO mode circuit | ||
| Hesitation and/or poor acceleration | Brake override system | |
| Loud rattle from hybrid vehicle transaxle | Loud Rattle from Hybrid Vehicle Transmission | |
| Transmission input damper assembly | ||
| Hybrid vehicle transaxle assembly | ||
| Power switch does not turn on (READY). | Battery voltage sensor (wrong assembly confirmation)* | |
| Entry and start system (for start function) | ||
| ECU power source circuit | ||
| Hybrid vehicle control ECU assembly (for LHD) | ||
| Hybrid vehicle control ECU assembly (for RHD) | ||
| ECM |
*: Check the part number of the battery voltage sensor.
If the battery voltage sensor had been replaced just before the malfunction occurred, check the part number of the battery voltage sensor.
Using the GTS, check the vehicle control history.
Tech Tips
If "Battery Smart Unit Mismatch" is displayed, the wrong type of battery voltage sensor is installed.
After installing the battery voltage sensor, perform the following to check that the power switch can be turned on (READY).
Turn the power switch on (READY).
Turn the power switch off and wait for 30 seconds or more.
Turn the power switch on (READY) again.
Tech Tips
The type of battery voltage sensor to be used varies depending on the vehicle model.
If the wrong type of battery voltage sensor is installed, the power switch cannot be turned on (READY).