Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GCL5 |
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): P310715; Lost Communication with Airbag System Control Module Circuit Short to Auxiliary Battery or Open; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] |
DTC
|
P310715
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Lost Communication with Airbag System Control Module Circuit Short to Auxiliary Battery or Open
|
DESCRIPTION
Refer to the description for DTC P310711.
Click here
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Warning Indicate
|
P310715
|
Lost Communication with Airbag System Control Module Circuit Short to Auxiliary Battery or Open
|
Open or short to +B in the communication circuit
Communication from the airbag sensor assembly stopped and Circuit High has been detected for a certain period.
(1 trip detection logic)
|
-
Wire harness or connector
-
Airbag sensor assembly
-
Hybrid vehicle control ECU
|
Does not come on
|
Master Warning: Comes on
|
Related Data List
DTC No.
|
Data List
|
P310715
|
Airbag Status (Collision)
|
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 (IG) and turn the Techstream on.
-
With power switch on (IG) and wait for 15 seconds or more.
-
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 DTC P310711.
Click here
PROCEDURE
1.
|
CHECK DTC OUTPUT (SRS AIRBAG)
|
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.
(d) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
|
Proceed to
|
DTCs are not output
|
A
|
DTCs are output
|
B
|
(e) Turn the power switch off.
A
|
|
|
2.
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CHECK AIRBAG SENSOR ASSEMBLY (CHECK WAVEFORM)
|
Click here
Result
|
Proceed to
|
The waveform appears as shown in the illustration
|
A
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The waveform differs from the one shown in the illustration
|
B
|
A
|
|
|
Click here
NEXT
|
|
|
4.
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CHECK DTC OUTPUT (HYBRID CONTROL)
|
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Result
|
Proceed to
|
P310715 is not output
|
A
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P310715 is output again
|
B
|
(e) Turn the power switch off.
A
|
|
|
5.
|
CHECK FOR INTERMITTENT PROBLEMS
|
Click here
NG |
|
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
|
6.
|
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)
|
Click here
NG |
|
CONNECT SECURELY
|
OK
|
|
|
7.
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CHECK CONNECTOR CONNECTION CONDITION (AIRBAG SENSOR ASSEMBLY CONNECTOR)
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(a) Check the connector connections and contact pressure of the relevant terminals for the airbag sensor assembly connectors.
Click here
OK:
The connectors are connected securely and there are no contact pressure problems.
|
|
*a
|
Component with harness connected
(Airbag Sensor Assembly)
|
|
|
NG |
|
CONNECT SECURELY
|
OK
|
|
|
8.
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CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - AIRBAG SENSOR ASSEMBLY)
|
(a) Disconnect the I3 hybrid vehicle control ECU connector.
(b) Disconnect the I47 airbag sensor assembly connector.
(c) Turn the power switch on (IG).
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I3-29 (ABFS) - Body ground
|
Power switch on (IG)
|
Below 1 V
|
NOTICE:
Turning the power switch on (IG) with the airbag sensor assembly connectors and the hybrid vehicle control ECU connectors 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 Airbag Sensor Assembly)
|
|
|
(e) Turn the power switch off.
(f) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection
|
Condition
|
Specified Condition
|
I3-29 (ABFS) - I47-24 (GSW2)
|
Power switch off
|
Below 1 Ω
|
Standard Resistance (Check for Short):
Tester Connection
|
Condition
|
Specified Condition
|
I3-29 (ABFS) or I47-24 (GSW2) - Body ground and other terminals
|
Power switch off
|
10 kΩ or higher
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(g) Reconnect the I47 airbag sensor assembly connector.
(h) Reconnect the I3 hybrid vehicle control ECU connector.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
9.
|
CHECK HYBRID VEHICLE CONTROL ECU
|
(a) Disconnect the I47 airbag sensor assembly connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
*a
|
Component with harness connected
(Hybrid Vehicle Control ECU)
|
-
|
-
|
NOTICE:
Turning the power switch on (IG) with the airbag sensor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I3-29 (ABFS) - Body ground
|
Power switch on (IG)
|
11 to 14 V
|
(d) Turn the power switch off.
(e) Reconnect the I47 airbag sensor assembly connector.
OK
|
|
|
10.
|
CHECK HARNESS AND CONNECTOR (AIRBAG SENSOR ASSEMBLY - BODY GROUND)
|
(a) Disconnect the I47 airbag sensor assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection
|
Switch Condition
|
Specified Condition
|
I47-33 (E1) - Body ground
|
Power switch off
|
Below 1 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Airbag Sensor Assembly)
|
|
|
(c) Reconnect the I47 airbag sensor assembly connector.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|