P3107-213

P310 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P3107-213: Airbag ECU Communication Circuit Malfunction

DTC P3107-213 - Airbag ECU Communication Circuit Malfunction

DESCRIPTION
- The HV control ECU detects an error in collision signals from the airbag sensor assembly center and alerts the driver.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. DTC OUTPUT (SRS AIRBAG)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Select the following menu items: Body Electrical / SRS Airbag / Trouble Codes.
(d) Read output DTC.
Result:
DTCs for the airbag system are output.
YES -- GO TO DTC CHART
NO -- Continue to next step.
2. INSPECT HYBRID VEHICLE CONTROL ECU





(a) Connect the oscilloscope tester to the HV control ECU terminals specified in the table below and check the waveform.






OK:
The waveform appears as shown in the illustration.
NG -- CHECK AIR BAG SENSOR ASSEMBLY CENTER
OK -- Continue to next step.
3. INTERMITTENT PROBLEMS
NEXT -- REPLACE HYBRID VEHICLE CONTROL ECU
4. CHECK AIR BAG SENSOR ASSEMBLY CENTER





(a) Turn the ignition switch off.
(b) Disconnect the A20 connector from the airbag sensor assembly center.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE AIR BAG SENSOR ASSEMBLY CENTER
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (HV CONTROL ECU - AIR BAG SENSOR ASSEMBLY CENTER)





(a) Disconnect the H29 connector from the HV control ECU.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE HYBRID VEHICLE CONTROL ECU