DTC P3107-11: Lost Communication with Airbag System Control Module Circuit Short to Ground [11/2018 - 08/2020]: Procedure
- CHECK DTC OUTPUT (SRS AIRBAG)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.
- Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
Result Proceed to Airbag system DTCs are not output. A Airbag system DTCs are output. B - Turn the power switch off.
Result:
B
GO TO DTC CHART (AIRBAG SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2018 - 08/2020]
Result:
A
See step 2
- CHECK AIR BAG SENSOR ASSEMBLY (CHECK WAVEFORM)
- Connect an oscilloscope between the hybrid vehicle control ECU assembly terminals specified in the table below.
- Turn the power switch on (READY).
- Measure the waveform.
*a Component with harness connected
(Hybrid Vehicle Control ECU Assembly)- - Item Contents Terminal A30-29 (ABFS) - A30-3 (E1) Equipment Setting 5 V/DIV., 150 ms./DIV. Condition Power switch on (READY) Result
Result Proceed to The waveform appears as shown in the illustration. A The waveform differs from the one shown in the illustration. B - Turn the power switch off.
Result:
B
See step 6
Result:
A
See step 3
- CLEAR DTC
Refer to PROCEDURE - Step 3
Result
Proceed to NEXT Result:
NEXT
See step 4
- CHECK DTC OUTPUT (HYBRID CONTROL)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
- Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Result
Result Proceed to P3107-11 is not output. A P3107-11 is output. B - Turn the power switch off.
Result:
B
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020]
Result:
A
See step 5
- CHECK FOR INTERMITTENT PROBLEMS
Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2018 - 08/2020]
Result
Proceed to OK NG Result:
OK
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020]
Result:
NG
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
- CHECK AIR BAG SENSOR ASSEMBLY
- Disconnect the G70 airbag sensor assembly connector.
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Airbag Sensor Assembly)Standard Resistance
Tester Connection Condition Specified Condition G70-24 (GSW2) - G70-33 (E1) Power switch off 10 kΩ or higher - Reconnect the G70 airbag sensor assembly connector.
Result
Proceed to OK NG
Result:
NG
REPLACE AIR BAG SENSOR ASSEMBLY. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020]
Result:
OK
See step 7
- CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - AIRBAG SENSOR ASSEMBLY)
- Disconnect the A30 hybrid vehicle control ECU assembly connector.
- Disconnect the G70 airbag sensor assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A30-29 (ABFS) or G70-24 (GSW2) - Body ground and other terminals Power switch off 10 kΩ or higher *a Front view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)*b Front view of wire harness connector
(to Airbag Sensor Assembly) - Reconnect the G70 airbag sensor assembly connector.
- Reconnect the A30 hybrid vehicle control ECU assembly connector.
Result
Proceed to OK NG
Result:
OK
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR