DTC P3107-215: Airbag ECU Communication Circuit Malfunction: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Body Electrical / SRS Airbag / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   Airbag system DTCs are not output.	A
   Airbag system DTCs are output. (for TMC Made)	B
   Airbag system DTCs are output. (for TMMK Made)	C

B → See step   9 

C → See step   10 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Read and record the DTCs and freeze frame data.
4. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
5. Clear DTCs and freeze frame data.

NEXT: Go to next step 

1. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
2. Check if DTCs are output.

   Result

   P3107-215 is output.

YES → See step   5 

NO: Go to next step 

1. Check for intermittent problems. Refer to CHECK FOR INTERMITTENT PROBLEMS .

   Result

   Result	Proceed to
   YES	A
   NO (for TMC Made)	B
   NO (for TMMK Made)	C

B → See step   7 

C → See step   11 

A → REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

OK → See step   8 

NG: Go to next step 

1. Turn the power switch off.
2. Connect the A61 hybrid vehicle control ECU connector.
3. Disconnect the E30 center airbag sensor assembly.
   Fig 1: Identifying A61 Hybrid Vehicle Control ECU &E30 Center Airbag Sensor Assembly Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Turn the power switch on (IG).
5. Measure the voltage according to the value(s) in the table below.

   Standard voltage

   Tester Connection	Specified Condition
   GSW2 (E30-14) - Body ground	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the hybrid vehicle control ECU and center airbag sensor assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

6. Turn the power switch off.
7. Measure the resistance according to the value(s) in the table below.

   Standard resistance (Check for open)

   Tester Connection	Specified Condition
   ABFS (A61-73) - GSW2 (E30-14)	Below 1 Ω

   Standard resistance (Check for short)

   Tester Connection	Specified Condition
   ABFS (A61-73) or GSW2 (E30-14) - Body ground	10 kΩ or more

   Result

   Result	Proceed to
   NG	A
   OK (for TMC Made)	B
   OK (for TMMK Made)	C

B → See step   7 

C → See step   11 

A → REPAIR OR REPLACE HARNESS OR CONNECTOR