Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GCLR |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0AE415; Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] |
DTC
|
P0AE415
|
Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open
|
DESCRIPTION
Refer to the description for DTC P0AE411.
Click here
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Warning Indicate
|
P0AE415
|
Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open
|
Open or short to +B in SMRP circuit:
Primary circuit of SMRP is malfunctioning.
(2 trip detection logic)
|
-
Wire harness or connector
-
HV battery junction block assembly
-
Hybrid vehicle control ECU
|
Does not come on
|
Master Warning: Comes on
|
Related Data List
DTC No.
|
Data List
|
P0AE415
|
-
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
|
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.
Click here
-
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.
Click here
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.
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.
Click here
HINT:
If DTC P0AE415 is output, the power switch cannot be turned on (READY).
PROCEDURE
1.
|
READ VALUE USING TECHSTREAM (SMRP STATUS)
|
(a) Connect the Techstream to the DLC3
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Data List / SMRP Status.
Powertrain > Hybrid Control > Data List
Tester Display
|
SMRP Status
|
(d) Read the Data List.
Standard:
Tester Display
|
Condition
|
Specified Condition
|
SMRP Status
|
Power switch on (IG)
|
OFF
|
(e) Turn the power switch off.
OK
|
|
|
2.
|
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)
|
Click here
NG |
|
CONNECT SECURELY
|
OK
|
|
|
3.
|
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
|
A
|
|
|
4.
|
CHECK CONNECTOR CONNECTION CONDITION (HV BATTERY JUNCTION BLOCK ASSEMBLY CONNECTOR)
|
Click here
NG |
|
CONNECT SECURELY
|
5.
|
CHECK HARNESS AND CONNECTOR (SMRP VOLTAGE)
|
(a) Turn the power switch on (IG).
(b) Measure the voltage according to the value(s) in the table below.
*a
|
Component with harness connected
(Hybrid Vehicle Control ECU)
|
-
|
-
|
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I2-15 (SMRP) - Body ground
|
Power switch on (IG)
|
Below 1 V
|
(c) Turn the power switch off.
OK
|
|
|
6.
|
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)
|
Click here
NG |
|
CONNECT SECURELY
|
7.
|
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - BODY GROUND)
|
(a) Disconnect the I2 hybrid vehicle control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I2-15 (SMRP) - Body ground
|
Power switch off
|
140 to 290 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Hybrid Vehicle Control ECU)
|
|
|
(c) Reconnect the I2 hybrid vehicle control ECU connector.
OK
|
|
|
8.
|
CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES)
|
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 O35 HV battery junction block assembly connector.
|
|
(d) Disconnect the I2 hybrid vehicle control ECU connector.
(e) Turn the power switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I2-15 (SMRP) or O35-2 (SMRP) - Body ground
|
Power switch on (IG)
|
Below 1 V
|
NOTICE:
Turning the power switch on (IG) with the hybrid vehicle control ECU connector and the HV battery junction block assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
|
|
*a
|
Front view of wire harness connector
(to Hybrid Vehicle Control ECU)
|
*b
|
Front view of wire harness connector
(to HV Battery Junction Block Assembly)
|
|
|
(g) Turn the power switch off.
(h) Reconnect the I2 hybrid vehicle control ECU connector.
(i) Reconnect the O35 HV battery junction block assembly connector.
(j) Install the No. 1 HV battery cover panel RH.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
9.
|
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
|
A
|
|
|
10.
|
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 O35 HV battery junction block assembly connector.
|
|
(d) Disconnect the I2 hybrid vehicle control ECU connector.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection
|
Condition
|
Specified Condition
|
I2-15 (SMRP) - O35-2 (SMRP)
|
Power switch off
|
Below 1 Ω
|
Standard Resistance (Check for Short):
Tester Connection
|
Condition
|
Specified Condition
|
I2-15 (SMRP) or O35-2 (SMRP) - Body ground and other terminals
|
Power switch off
|
10 kΩ or higher
|
|
|
*a
|
Front view of wire harness connector
(to Hybrid Vehicle Control ECU)
|
*b
|
Front view of wire harness connector
(to HV Battery Junction Block Assembly)
|
|
|
(f) Reconnect the I2 hybrid vehicle control ECU connector.
(g) Reconnect the O35 HV battery junction block assembly connector.
(h) Install the No. 1 HV battery cover panel RH.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
11.
|
CHECK HARNESS AND CONNECTOR (HV BATTERY JUNCTION BLOCK ASSEMBLY - BODY GROUND)
|
Click here
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
12.
|
INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRP)
|
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 O35 HV battery junction block assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
*a
|
Component without harness connected
(HV Battery Junction Block Assembly)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O35-2 (SMRP) - O35-3 (GND)
|
-40 to 80°C (-40 to 176°F)
|
140 to 290 Ω
|
(e) Reconnect the O35 HV battery junction block assembly connector.
(f) Install the No. 1 HV battery cover panel RH.
|