Power Source Mode does not Change to ON (IG) [12/2015 - 08/2016]: Procedure

See step  1

Result: 

NG 

GO TO DTC CHART 

(Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2015 - 08/2016] )

Result: 

OK 

See step  2

1. Disconnect the D89 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
   D89-1 (AM22) - Body ground	Always	9.5 to 14 V

   TEXT IN ILLUSTRATION
   
   

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

Result: 

NG 

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

Result: 

OK 

See step  3

1. Remove the IG2 relay from the engine room relay block.
2. Inspect IG2 relay (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

Result: 

NG 

REPLACE IG2 RELAY 

Result: 

OK 

See step  4

1. Disconnect the 2A and 2D instrument panel 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-16 - 2D-7	20°C (68°F)	50.63 to 123.75 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Instrument Panel Junction Block Assembly)

Result: 

NG 

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

Result: 

OK 

See step  5

1. Disconnect the D89 power management control ECU connector.
2. Disconnect the 2A instrument panel block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D89-20 (IG1D) - 2A-16	Always	Below 1 Ω
   D89-20 (IG1D) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the 2D instrument panel 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-7 - Body ground	Always	Below 1 Ω

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Disconnect the A35 power management control ECU connector.
2. Remove the IG2 relay from the engine room relay block.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A35-8 (IG2D) - 1 (IG2 relay terminal)	Always	Below 1 Ω
   A35-8 (IG2D) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  8

1. Remove the IG2 relay from the engine room relay block.

   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
   2 (IG2 relay terminal) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without relay connected (IG2 Relay Terminal)

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  9

See step  3

Result: 

NG 

REPLACE POWER MANAGEMENT CONTROL ECU 

(Refer to REMOVAL [12/2015 - 11/2017] )

Result: 

OK 

See step  10

See step  8

Result: 

OK 

SYSTEM RETURNED TO NORMAL (PROBLEM OCCURRED DUE TO BAD CONNECTION, BUT RETURNED TO NORMAL BY RECONNECTING CONNECTOR) 

Result: 

NG 

CHECK RELAY CONTACT CIRCUIT