P3107-215

P310 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P3107-215: Airbag ECU Communication Circuit Malfunction

DTC P3107-215 - 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. CLEAR DTC (HV)
(a) Turn the Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Clear DTCs and freeze frame data.
NEXT -- Continue to next step.
2. RECONFIRM OUTPUT DTC (HV)
(a) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(b) Read output DTC. Hybrid Control System

Result:
DTC P3107-215 is output again.
YES -- INSPECT HYBRID VEHICLE CONTROL ECU
NO -- Continue to next step.
3. CHECK FOR INTERMITTENT PROBLEMS
NEXT -- REPLACE AIR BAG SENSOR ASSEMBLY CENTER
4. INSPECT HYBRID VEHICLE CONTROL ECU





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






OK:
The waveform appears as shown in the illustration.
OK -- REPLACE HYBRID VEHICLE CONTROL ECU
NG -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (HV CONTROL ECU - AIR BAG SENSOR ASSEMBLY CENTER)
(a) Turn the ignition switch off.
(b) Connect the H29 connector to the HV control ECU.





(c) Disconnect the A20 connector from the airbag sensor assembly CTR.
(d) Measure the voltage according to the value(s) in the table below when the ignition switch is in the ON position.
Standard voltage:





(e) Turn the ignition switch off.
(f) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for open):






Standard Resistance (Check for short):






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE AIR BAG SENSOR ASSEMBLY CENTER