Tire Pressure Warning System Tc And Cg Terminal Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT DLC3 TERMINAL VOLTAGE (DLC3 TERMINAL VOLTAGE)

CHECK CAN COMMUNICATION SYSTEM AND MULTIPLEX COMMUNICATION SYSTEM

CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

CHECK CAN COMMUNICATION SYSTEM AND MULTIPLEX COMMUNICATION SYSTEM

DESCRIPTION

WIRING DIAGRAM

HINT:

When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

INSPECTION PROCEDURE

1. Turn the engine switch on (IG).
   

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

   Standard voltage:

   Tester Connection	Specified Condition
   K16-13 (TC) - Body ground	10 to 14 V

1. Check it a DTC of CAN communication system and multiplex communication system is output.
   
   

   Result:

   
   

   Condition	Proceed to
   DTC is not output	A
   DTC is output	B

1. Turn the engine switch off.
   

2. Disconnect the ECM A7 connector.
   

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

   Standard resistance:

   Tester connection	Condition	Specified condition
   K16-13 (TC) - A7-3 (TC)	Always	Below 1 Ω

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

   Standard resistance:

   Tester connection	Condition	Specified condition
   K16-4 (CG) - Body ground	Always	Below 1 Ω

1. Check if a DTC of CAN communication system and multiplex communication system is output.
   
   

   Result:

   
   

   Condition	Proceed to
   DTC is not output	A
   DTC is output	B