Entry And Start System (For Start Function) Power Source Mode Does Not Change To On (Ig)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

INSPECT NO. 1 INTEGRATION RELAY (IG2 RELAY)

INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY (IG1 NO. 1, IG1 NO. 2 AND IG1 NO. 3 RELAYS)

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 1 INTEGRATION RELAY)

CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - BODY GROUND)

CHECK POWER MANAGEMENT CONTROL ECU

CONFIRM TEST

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. When using the intelligent tester with the engine switch off to troubleshoot: Connect the intelligent tester to the vehicle and turn a courtesy light switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.
   
2. Before performing the inspection, check that there are no problems related to the CAN communication system and LIN communication system.
   
3. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
   

1. Disconnect the G51 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
   G51-2 (AM21) - Body ground	Always	9.5 to 14 V
   G51-1 (AM22) - Body ground

   Text in Illustration

   *a	Rear view of wire harness connector (to Power Management Control ECU)

1. Disconnect the G51 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
   G51-6 (GND) - Body ground	Always	Below 1 Ω
   G51-5 (GND2) - Body ground

   Text in Illustration

   *a	Rear view of wire harness connector (to Power Management Control ECU)

1. Remove the No. 1 integration relay.
   

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

   
   
   
   
   

   Text in Illustration

   *A	for 1GD-FTV (w/ Urea SCR System)	*B	except 1GD-FTV (w/ Urea SCR System)
   *a	Component without harness connected (No. 1 Integration Relay)	-	-

   
   

   Standard Resistance:

   for 1GD-FTV (w/ Urea SCR System):

   Tester Connection	Condition	Specified Condition
   1J-6 - 1J-3	20°C (68°F)	500 to 750Ω

   except 1GD-FTV (w/ Urea SCR System):

   Tester Connection	Condition	Specified Condition
   1A-1 - 1A-3	20°C (68°F)	255 to 387 Ω

1. Remove the driver side junction block assembly.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   2A-52 - 2D-4	20°C (68°F)	101.25 to 123.75 Ω

   Text in Illustration

   *a	Component without harness connected (Driver Side Junction Block Assembly)

1. Disconnect the G51 power management control ECU connector.
   

2. Disconnect the 2A driver side junction block assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   G51-20 (IG1D) - 2A-52	Always	Below 1 Ω
   G51-20 (IG1D) - Body ground	Always	10 kΩ or higher

1. Disconnect the 2D driver side junction block assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   2D-4 - Body ground	Always	Below 1 Ω

1. Disconnect the G50 power management control ECU connector.
   

2. Disconnect the 1J*1 or 1A*2 No. 1 integration relay connector.
   

   1. *1: for 1GD-FTV (w/ Urea SCR System)
      
   2. *2: except 1GD-FTV (w/ Urea SCR System)
      

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

   Standard Resistance:

   for 1GD-FTV (w/ Urea SCR System):

   Tester Connection	Condition	Specified Condition
   G50-8 (IG2D) - 1J-6	Always	Below 1 Ω
   G50-8 (IG2D) - Body ground	Always	10 kΩ or higher

   except 1GD-FTV (w/ Urea SCR System):

   Tester Connection	Condition	Specified Condition
   G50-8 (IG2D) - 1A-1	Always	Below 1 Ω
   G50-8 (IG2D) - Body ground	Always	10 kΩ or higher

1. Disconnect the 1J*1 or 1A*2 No. 1 integration relay connector.
   

   1. *1: for 1GD-FTV (w/ Urea SCR System)
      
   2. *2: except 1GD-FTV (w/ Urea SCR System)
      

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

   Standard Resistance:

   for 1GD-FTV (w/ Urea SCR System):

   Tester Connection	Condition	Specified Condition
   1J-3 - Body ground	Always	Below 1 Ω

   except 1GD-FTV (w/ Urea SCR System):

   Tester Connection	Condition	Specified Condition
   1A-3 - Body ground	Always	Below 1 Ω

1. Install the No. 1 integration relay.
   

2. Install the driver side junction block assembly.
   

3. Connect the power management control ECU connectors.
   

   
   
   
   
   

   Text in Illustration

   *a

   Component with harness connected (Power Management Control ECU)

   -

   -

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

   Standard Voltage:

   
   

   Tester Connection	Switch Condition	Specified Condition
   G50-8 (IG2D) - Body ground	Engine switch off	Below 1 V
   	Engine switch on (IG)	((Voltage at terminal AM21 or AM22) minus 2.0 V) or higher
   G51-20 (IG1D) - Body ground	Engine switch off	Below 1 V
   	Engine switch on (IG)	((Voltage at terminal AM21 or AM22) minus 2.0 V) or higher

1. Check that the power source mode changes to on (ACC) and on (IG) when operating the engine switch.
   

   OK:

   The power source mode changes to on (ACC) and on (IG) in response to the operation of the engine switch.