Immobilizer System does not Operate Properly [11/2016 - ]: Procedure

1. Check for DTCs.

   Body Electrical > Smart Key > Trouble Codes 

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result:  2

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2016 - ] 

Result:  1

A 

See step  2

1. Check that the hybrid control system starts 5 seconds after the power switch turned on (IG).

   OK

   Hybrid control system starts normally.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] 

Result:  2

NG 

See step  3

1. Using an oscilloscope, check the waveform.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (hybrid vehicle control ECU assembly)	*b	Approximately 160 ms
   *c	Approximately 270 ms	*d	Approximately 40 ms
   *e	Approximately 60 ms	*f	Waveform (IMO)
   *g	Waveform (IMI)	*h	Waveform A
   *i	Waveform B	*j	Waveform C
   *k	Waveform A (detail)	-	-

   NOTE:

   The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

   OK

   Tester Connection	Condition	Tool Setting	Specified Condition
   F137-23 (IMO) - F136-6 (E1)	Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform (IMO))
   F137-22 (IMI) - F136-6 (E1)	Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform (IMI))

   Result

   Result	Proceed to
   Normal waveform	A
   Waveform A not output, or has abnormal wavelength or shape	B
   Waveform B not output, or has abnormal wavelength or shape	C
   Waveform C not output, or has abnormal wavelength or shape	D

Result:  2

B 

See step  6

Result:  3

C 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  REMOVAL [11/2016 - ] 

Result:  4

D 

See step  7

Result:  1

A 

See step  4

1. Register the ECU communication ID.

   HINT: 

   Refer to Registration.

   Refer to REGISTRATION [11/2016 - ]

Result: 

NEXT 

1. Check that the hybrid control system starts.

   OK

   Hybrid control system starts normally.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END (COMMUNICATION ID REGISTRATION WAS DEFECTIVE) 

Result:  2

NG 

See step  7

1. Disconnect the F9 certification ECU (smart key ECU assembly) connector.
2. Disconnect the F137 hybrid vehicle control ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F9-7 (EFII) - F137-23 (IMO)	Always	Below 1 Ω
   F9-6 (EFIO) - F137-22 (IMI)	Always	Below 1 Ω
   F9-7 (EFII) or F137-23 (IMO) - Body ground	Always	10 kΩ or higher
   F9-6 (EFIO) or F137-22 (IMI) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

See step  7

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Replace the certification ECU (smart key ECU assembly) with a new one.

   Refer to REMOVAL [11/2016 - ]

Result: 

NEXT 

1. Register the recognition codes in the ECUs.

   HINT: 

   Refer to Registration.

   Refer to REGISTRATION [11/2016 - ]

Result: 

NEXT 

1. Register the ECU communication ID.

   HINT: 

   Refer to Registration.

   Refer to REGISTRATION [11/2016 - ]

Result: 

NEXT 

1. Check that the hybrid control system starts.

   OK

   Hybrid control system starts normally.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) 

Result:  2

NG 

GO TO HYBRID CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - ]