DTC P3107-214: Airbag ECU Communication Circuit Malfunction: Procedure

NG → See step   5 

OK: 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. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   DTC P3107-214 is output.

YES → See step   7 

NO: Go to next step 

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

YES → REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

NO → See step   7 

1. Turn the power switch off.
2. Disconnect the hybrid vehicle control ECU connector.
   Fig 1: Identifying Hybrid Vehicle Control ECU E30 Center Airbag Sensor Assembly Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the E30 center airbag sensor assembly connector.
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

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 higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Turn the power switch off.
2. Connect the hybrid vehicle control ECU connector.
3. Turn the power switch on (IG).
4. Measure the voltage according to the value(s) in the table below.
   Fig 2: Identifying Hybrid Vehicle Control ECU Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester Connection	Specified Condition
   GSW2 (E30-14) - Body ground	10 to 14 V

   Result

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

   NOTE:

   Turning the power switch on (IG) with the center airbag sensor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

B → See step   8 

C → See step   9 

A → See step   7