AIRBAG SYSTEM TC and CG Terminal Circuit

DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.

The DTCs are displayed by blinking the SRS warning light.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (DLC3 - CENTER AIRBAG SENSOR ASSEMBLY)

   
   

   1. 

      Turn the ignition switch to the LOCK position.

   2. 

      Disconnect the connectors from the center airbag sensor assembly.

   3. Measure the resistance according to the value(s) in the table below.

      Resistance
      Tester connection Condition Specified condition H23-13 (TC) - B4-15 (TC) Always Below 1 Ω

   
   

   NG

   REPAIR OR REPLACE WIRE HARNESS (TC OF DLC3 - TC OF CENTER AIRBAG SENSOR ASSEMBLY)

   OK

2. CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)

   
   

   1. 

      Measure the resistance according to the value(s) in the table below.

      Resistance
      Tester connection Condition Specified condition H23-4 (CG) - Body ground Always Below 1 Ω

   
   

   NG

   REPAIR OR REPLACE WIRE HARNESS (CG OF DLC3 - BODY GROUND)

   OK

3. CHECK WIRE HARNESS (TC OF CENTER AIRBAG SENSOR ASSEMBLY)

   
   

   1. 

      Measure the resistance according to the value(s) in the table below.

      Resistance
      Tester connection Condition Specified condition B4-15 (TC) - Body ground Always 1 MΩ or higher

   
   

   NG

   REPAIR OR REPLACE WIRE HARNESS OR EACH ECU

   OK

   REPLACE CENTER AIRBAG SENSOR ASSEMBLY