Power Source Mode does not Change to ON (IG): Procedure

NG → GO TO DTC CHART 

OK: Go to next step 

1. Disconnect the G39 power management control ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Tester Connection	Condition	Specified Condition
   G39-1 (AM22) - Body ground	Always	9.5 to 14 V

   TEXT IN ILLUSTRATION
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE 

OK: Go to next step 

1. Remove the No. 1 integration relay.
2. Inspect No. 1 integration relay. Refer to ON-VEHICLE INSPECTION [06/2012 - ] .

NG → REPLACE NO. 1 INTEGRATION RELAY 

OK: Go to next step 

1. Disconnect the 2A and 2D driver side junction block assembly connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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)	50.63 to 123.75 Ω

   TEXT IN ILLUSTRATION
   
   

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

NG → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) 

OK: Go to next step 

1. Disconnect the G39 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
   G39-20 (IG1D) - 2A-52	Always	Below 1 Ω
   G39-20 (IG1D) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the G38 power management control ECU connector.
2. Disconnect the 1A No. 1 integration relay connector.
3. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   G38-8 (IG2D) - 1A-1	Always	Below 1 Ω
   G38-8 (IG2D) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the 1A No. 1 integration relay connector.
2. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

NG → See step   10 

OK → See step   11