| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001N35W |
| Model Year Start: 2021 | Model: Corolla | Prod Date Range: [04/2020 - 09/2022] |
| Title: HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with P610): PROBLEM SYMPTOMS TABLE; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] | ||
PROBLEM SYMPTOMS TABLE
Hybrid Battery System
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
"Maintenance Required for Traction Battery Cooling Parts See Owner's Manual" is displayed on the multi-information display.* |
1. Make sure the HV battery cooling system intake port is not blocked. |
- |
|
2. Make sure there are no gaps between the connecting parts of the ducts. |
- |
|
|
3. Clean the No. 1 HV battery intake filter. Check for entry of foreign matter. |
|
|
|
4. Clear the DTCs to reset the learning values even if no DTCs are stored. |
|
|
|
Abnormal sound is heard from the area around the hybrid battery intake duct. |
1. Make sure the HV battery cooling system intake port is not blocked. |
- |
|
2. Make sure there are no gaps between the connecting parts of the ducts. |
- |
|
|
3. Clean the No. 1 HV battery intake filter. Check for entry of foreign matter. |
|
|
|
4. Clear the DTCs to reset the learning values even if no DTCs are stored. |
|
|
|
"Have Traction Battery Inspected" is displayed on the multi-information display. |
"Have Traction Battery Inspected" is displayed. |
|
|
Power switch does not turn on (READY). |
Smart Key System (for Start Function) |
|
|
ECU Power Source Circuit (Hybrid Battery System) |
|
|
|
ECU Power Source Circuit (Hybrid Control System) |
|
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|
Check Vehicle Control History (Ready ON Prevention) |
|
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The power switch is slow to turn on (READY). |
Check Vehicle Control History (Ready ON Prevention) |
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Engine stops and starts less frequently. |
Check Vehicle Control History (Limit to Charge / Discharge Control Value by Hybrid Battery) |
|
|
Engine speed returns to idle slowly after accelerator pedal is fully released. |
Check Vehicle Control History (Limit to Charge / Discharge Control Value by Hybrid Battery) |
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![2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; MAINTENANCE: BATTERY COOLING FILTER: INSPECTION](/t3Portal/stylegraphics/info.gif)
*: If the battery cooling blower assembly malfunctions, DTC P0A8100, P0A8111, P0A8115, P0A814B, P0A8196 and P0A8198 will be stored. If only "Maintenance Required for Traction Battery Cooling Parts See Owner's Manual" is displayed on the multi-information display, only perform the inspection of the HV battery cooling system intake port, filter and duct.
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