THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Entry Function) Driver Side Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
If the entry lock and unlock functions do not operate for the driver door only, the request code may not be being transmitted from the driver door or the front door outside handle assembly (for driver door) (touch sensor) may be malfunctioning. If the entry functions for other doors operate properly, communication between the electrical key transmitter sub-assembly and door control with receiver ECU assembly is normal. In this case, there may be a problem with request code transmission (communication between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver door) (electrical key antenna)), or there may be wave interference.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
The smart entry and start system (for Entry 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 Entry Function) after confirming that the communication systems are functioning properly.
·When using the GTS with the engine 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.
·Check that there are no electrical key transmitter sub-assemblies in the vehicle.
·Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output.
·Before replacing the certification ECU (smart key ECU assembly), refer to smart entry and start system (for Entry Function) Precaution.
·After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
When the door control switch on the power window regulator switch assembly is operated, check that the doors unlock and lock according to the switch operation.
Click hereVehicle Interior>DOOR LOCK>POWER DOOR LOCK CONTROL SYSTEM>OPERATION CHECK
- OK:
Door locks operate normally.
- Result:
Proceed to OK NG
OK
NG
Click hereVehicle Interior>DOOR LOCK>POWER DOOR LOCK CONTROL SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING
| *a | Approximately 0.3 m (0.984 ft.) |
Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly (for driver door) and perform an entry function check.
- HINT:
- ·
Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle.
·If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
- Result:
Result Proceed to Entry function does not operate normally A Entry function operates normally B
A
B
Disconnect the G14 front door outside handle assembly (for driver door) connector.
Disconnect the E110 certification ECU (smart key ECU assembly) connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition G14-3 (ANT2) - E110-13 (CG1B) Always Below 1 Ω G14-6 (ANT1) - E110-12 (CLG1) Always Below 1 Ω G14-5 (B) - E110-19 (POS1) Always Below 1 Ω G14-2 (GND) - Body ground Always Below 1 Ω G14-3 (ANT2) or E110-13 (CG1B) - Body ground Always 10 kΩ or higher G14-6 (ANT1) or E110-12 (CLG1) - Body ground Always 10 kΩ or higher G14-5 (B) or E110-19 (POS1) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Door Outside Handle Assembly (for Driver Door)) |
| *b | Waveform |
Connect the E110 certification ECU (smart key ECU assembly) connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition G14-5 (B) - G14-2 (GND) Engine switch off → on (IG) 9 to 14 V → Below 2 V
Using an oscilloscope, check the waveform.
- OK:
Tester Connection Condition Tool Setting Specified Condition G14-3 (ANT2) - G14-6 (ANT1) Procedure:
1.Engine switch off
2.Electrical key transmitter sub-assembly brought outside vehicle
3.All doors closed
4.Electrical key transmitter sub-assembly not inside vehicle
5.Electrical key transmitter sub-assembly brought outside detection area*
6.All doors locked through wireless operation
2 V/DIV., 500 ms/DIV. Pulse generation
(See waveform)
*: For details about the areas that are outside the entry function detection area, refer to Operation Check.
- Result:
Proceed to OK NG
OK
NG
Temporarily replace the front door outside handle assembly (for driver door) with a new or known good one.
Click hereVehicle Exterior>DOOR / HATCH>FRONT DOOR>DISASSEMBLY
- Result:
Proceed to NEXT
NEXT
Check that the entry function operates normally.
- OK:
Entry function operates normally.
- Result:
Proceed to OK NG
OK
NG