TIRE PRESSURE WARNING SYSTEM TC and CG Terminal Circuit

DESCRIPTION

Tire pressure warning system DTCs can be checked by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated by blinking the tire pressure warning light.

PROCEDURE

1. Click here

   CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check if CAN communication system DTCs are output (Click here).

      Result
      Result Proceed to DTCs are not output. A DTCs are output. B

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEM (Click here)

2. Click here

   CHECK DTC (C2179/79)

   
   

   1. Check if DTC C2179/79 is output (Click here).

      Result
      Result Proceed to DTC C2179/79 is not output. A DTC C2179/79 is output. B

   
   
   • AClick here
   • B

     GO TO DTC C2179/79 (Click here)

3. Click here

   CHECK HARNESS AND CONNECTOR (TC of DLC3 - POWER MANAGEMENT CONTROL ECU)

   
   

   1. Disconnect the H1 power management control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H29-13 (TC) - H1-11 (TC) Always Below 1 Ω

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

4. Click here

   CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)

   
   
   1. 

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

      Standard Resistance
      Tester Connection Condition Specified Condition H29-4 (CG) - Body ground Always Below 1 Ω

      Table 1. Text in Illustration

      *a	Front view of DLC3

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

5. Click here

   INSPECT DLC3 (TC VOLTAGE)

   
   
   1. 

      Reconnect the H1 power management control ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition H29-13 (TC) - H29-4 (CG) Power switch on (IG) 11 to 14 V

      Table 2. Text in Illustration

      *a	Front view of DLC3

   
   
   • OK

     PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

   • NG

     REPLACE POWER MANAGEMENT CONTROL ECU (Click here)