THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, HEV Model) Security Indicator Light Does not Blink
DESCRIPTION
The certification ECU (smart key ECU assembly) blinks the security indicator light (air conditioning control assembly) when the immobiliser is set (ignition switch off).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
·The smart entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Start Function) after confirming that the communication systems are functioning properly.
·Before replacing the certification ECU (smart key ECU assembly) or main body ECU(multiplex network body ECU)*1, refer to the Service Bulletin.
·After performing repairs, confirm that the problem does not recur.
·After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
·When replacing the air conditioning control assembly, always replace it with a new one. If a air conditioning control assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
*1: w/ Theft Deterrent System
PROCEDURE
Check for DTCs.
- Body Electrical > Entry&Start > Trouble Codes
- 50001 440
- Powertrain > Hybrid Control > Trouble Codes
- 50001 397
- OK:
DTCs are not output.
- Result:
Proceed to OK NG
OK
NG
Perform the Active Test according to the display on the GTS.
- Body Electrical > Entry&Start > Active Test
-
Tester Display Measurement Item Control Range Diagnostic Note Immobiliser Indicator Security indicator light OFF/ON -
- Body Electrical > Entry&Start > Active Test
-
Tester Display Immobiliser Indicator - 50004 440 2
- OK:
The security indicator light (air conditioning control assembly) operates normally.
- Result:
Result Proceed to OK (w/ Theft Deterrent System) A OK (w/o Theft Deterrent System) B NG C
A
B
C
When the immobiliser is set, check that the security indicator light (air conditioning control assembly) blinks.*1
- OK:
The security indicator light (air conditioning control assembly) blinks normally.
When the theft deterrent system is in the arming preparation state, check that the security indicator light (air conditioning control assembly) illuminates.*2
- OK:
The security indicator light (air conditioning control assembly) illuminates normally.
- Result:
Result Proceed to *1 is NG (*2 is OK) A *2 is NG (*1 is OK) B
A
B
Disconnect the I222 certification ECU (smart key ECU assembly) connector.
Disconnect the I37 security indicator light (air conditioning control assembly) connectors.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition I222-25 (IND) - I37-10 (LP) Always Below 1 Ω I222-25 (IND) or I37-10 (LP) - Other terminals and body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Connect the I222 certification ECU (smart key ECU assembly) connector.
Connect the I37 security indicator light (air conditioning control assembly) connectors.
| *a | Component with harness connected
(Certification ECU (Smart Key ECU Assembly)) |
Using an oscilloscope, check the waveform.
- Measurement Condition:
Tester Connection Switch Condition Specified Condition I222-25 (IND) - Body ground Ignition switch off → ON Pulse generation → Below 2 V
- Result:
Proceed to OK NG
OK
NG