STA Signal Circuit [08/2020 - 12/2021]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List / Starter SW.

   Powertrain > Engine > Data List 

   Tester Display
   Starter SW

5. Read the values displayed on the Techstream when the ignition switch is ON and START.

   OK

   Techstream Display	Condition	Normal Condition
   Starter SW	Ignition switch ON	OFF
   	Ignition switch START	ON

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2023] 

Result: 

NG 

See step  2

1. Disconnect the ECM connector.
2. Remove the ST NO. 2 relay from the No. 1 engine room relay block and No. 1 junction block assembly.
3. Disconnect the engine stop and start ECU connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A24-30 (STA) - 2 (ST NO. 2 relay)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR