- VL-Voltage before Boosting
- VH-Voltage after Boosting
- Hybrid/EV Battery Voltage
- SMRP Status
- SMRB Status
- SMRG Status
- SMRP Control Status
- SMRB Control Status
- SMRG Control Status
- Boosting Converter Shutdown Status
- Generator Inverter Shutdown Status
- Motor Inverter Shutdown Status
| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001RHC9 |
| Model Year Start: 2021 | Model: Avalon HV | Prod Date Range: [08/2020 - ] |
| Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0ADD11; Hybrid/EV Battery Negative Contactor Circuit Short to Ground; 2021 - 2022 MY Avalon HV [08/2020 - ] | ||
|
DTC |
P0ADD11 |
Hybrid/EV Battery Negative Contactor Circuit Short to Ground |
DESCRIPTION
Refer to the description for DTC P0AE411.
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![2021 - 2022 MY Avalon HV [08/2020 - ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0AE411; Hybrid/EV Battery Precharge Contactor Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
|
P0ADD11 |
Hybrid/EV Battery Negative Contactor Circuit Short to Ground |
Short to ground in the SMRG circuit: Primary circuit of SMR (-) is malfunctioning. (2 trip detection logic) |
|
Does not come on |
Master Warning Light: Comes on |
Related Data List
|
DTC No. |
Data List |
|---|---|
|
P0ADD11 |
|
CONFIRMATION DRIVING PATTERN
HINT:
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (READY) and wait for 30 seconds or more.
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (IG) and turn the Techstream on.
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
-
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.
WIRING DIAGRAM
Refer to the wiring diagram for the HV battery high-voltage line circuit.
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CAUTION / NOTICE / HINT
CAUTION:
-
Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
- Inspecting the high-voltage system
- Disconnecting the low voltage connector of the inverter with converter assembly
- Disconnecting the low voltage connector of the HV battery
-
To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
-
After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
-
After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
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HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
*a
Without waiting for 10 minutes
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
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HINT:
If DTC P0ADD11 is output, the power switch cannot be turned on (READY).
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - BODY GROUND) |
(a) Disconnect the G46 hybrid vehicle control ECU connector.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Reconnect the G46 hybrid vehicle control ECU connector.
| OK |
|
REPLACE HYBRID VEHICLE CONTROL ECU
|
|
|
2. |
CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR) |
Click here
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (The connector is not connected securely.) |
B |
|
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) |
C |
| B |
|
CONNECT SECURELY |
| C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - HV BATTERY JUNCTION BLOCK ASSEMBLY) |
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Remove the No. 1 HV battery cover panel RH.
Click here
|
(c) Disconnect the K18 HV battery junction block assembly connector. |
|
(d) Disconnect the G46 hybrid vehicle control ECU connector.
|
(e) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(f) Reconnect the G46 hybrid vehicle control ECU connector.
(g) Reconnect the K18 HV battery junction block assembly connector.
(h) Install the No. 1 HV battery cover panel RH.
| OK |
|
REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|