ECM Power Source Circuit [10/2015 - ]: Procedure

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   2D-1 - Body ground	Always	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - NO. 1 INTEGRATION RELAY) 

Result: 

OK 

See step  2

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

   Standard Resistance

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

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Inspect the No. 1 integration relay (EFI MAIN1 relay, IG2 relay).

   Refer to PROCEDURE - Step 1

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE NO. 1 INTEGRATION RELAY 

Result: 

OK 

See step  4

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   2F-6 - A78-6 (IGSW)	Always	Below 1 Ω
   2E-6 - A78-46 (MREL)	Always	Below 1 Ω
   2F-9 - A78-2 (+B)	Always	Below 1 Ω
   2F10-7 - A78-3 (+B2)	Always	Below 1 Ω
   2F-6 or A78-6 (IGSW) - Body ground and other terminals	Always	10 kΩ or higher
   2E-6 or A78-46 (MREL) - Body ground and other terminals	Always	10 kΩ or higher
   2F-9 or A78-2 (+B) - Body ground and other terminals	Always	10 kΩ or higher
   2F-10 or A78-3 (+B2) - Body ground and other terminals	Always	10 kΩ or higher

   HINT: 

   If a short is detected in any of the above circuits, there may be a malfunction in the circuit of a connected ECU.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Disconnect the ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F74-53 (E1) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the certification ECU (smart key ECU assembly) connector.
2. Remove the No. 1 integration relay from the No. 2 engine room relay block and junction block assembly.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A34-9 (IG2D) - 2E-2	Always	Below 1 Ω
   A34-9 (IG2D) or 2E-2 - Body ground and other terminals	Always	10 kΩ or higher

   HINT: 

   If a short is detected in any of the above circuits, there may be a malfunction in the circuit of a connected ECU.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR