THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) Security Indicator Light Does not Blink
DESCRIPTION
The certification ECU (smart key ECU assembly) blinks the security indicator light (map light assembly) when the immobiliser is set (ignition switch off).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
When using the GTS with the ignition switch off, perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins, and then select the vehicle model manually.
Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start (CAN). While using the GTS, periodically perform lock and unlock operations using the door control switch of the multiplex network master switch assembly 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), refer to Service Bulletin.
·Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart.
·After completing repairs, confirm that the problem does not recur.
·After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
Check for DTCs.
- Body Electrical > Entry&Start > Trouble Codes
- 50001 440
- Powertrain > Engine > Trouble Codes
- 50001 372
- 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 (map light assembly) operates normally.
- Result:
Proceed to OK NG
OK
NG
Disconnect the E52 certification ECU (smart key ECU assembly) connector.
Disconnect the Q9 security indicator light (map light assembly) connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(E52,Q9)Location & Routingewd_type=routing;type=c,c;code=E52,Q9
Click Connector(E52)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=25
Click Connector(Q9)Body>Roof Wire>Map Light Assemblyewd_type=component;type=c;code=Q9;pinno=2
E52-25 (IND) - Q9-2 (LP) Always Below 1 Ω E52-25 (IND) or Q9-2 (LP) - Other terminals and body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Component with harness connected
(Certification ECU (Smart Key ECU Assembly)) |
Connect the E52 certification ECU (smart key ECU assembly) connector.
Connect the Q9 security indicator light (map light assembly) connector.
Using an oscilloscope, check the waveform.
- Measurement Condition:
Tester Connection Condition Specified Condition Click Location & Routing(E52)Location & Routingewd_type=routing;type=c;code=E52
Click Connector(E52)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=25
E52-25 (IND) - Body ground Ignition switch off → ON Pulse generation → Below 2 V
- Result:
Proceed to OK NG
OK
NG