DTC P0615-62: Starter Relay Signal Compare Failure [11/2018 - 10/2019]: 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 / Stop and Start / Data List / Engine Starter Signal.

   Powertrain > Stop and Start > Data List 

   Tester Display
   Engine Starter Signal

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

   OK

   Techstream Display	Condition	Normal Condition
   Engine Starter Signal	Ignition switch ON	OFF
   	Ignition switch START	ON

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  4

Result: 

OK 

See step  2

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 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

NG 

See step  3

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
   A24-30 (STA) or 2 (ST NO. 2 relay) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [11/2018 - 08/2020] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A34-23 (STA2) - 2 (ST NO. 2 relay)	Always	Below 1 Ω
   A24-30 (STA) - 2 (ST NO. 2 relay)	Always	Below 1 Ω
   A34-23 (STA2) - A24-30 (STA)	Always	Below 1 Ω
   A34-23 (STA2), A24-30 (STA) or 2 (ST NO. 2 relay) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Inspect the ST NO. 2 relay.

   Refer to PROCEDURE - Step 2

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE RELAY (ST NO. 2 RELAY) 

Result: 

OK 

See step  6

1. Remove the ST NO. 2 relay from the No. 1 engine room relay block and No. 1 junction block assembly.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 (ST NO. 2 relay) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [11/2018 - 10/2019] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR