Replace parts related to the wireless door lock control system and entry and start system according to the inspection procedure.
If the wireless door lock control system and entry and start system does not operate, first check the customize item and make sure that the wireless door lock control system and entry and start system is not turned off.
The wireless door lock control system and entry and start system primarily uses the following systems.
Power door lock control system
Wireless door lock control system
Entry and start system (for Entry Function)
Entry and start system (for Start Function)
: Steering lock function
: Immobiliser function
When 2 or more keys are registered, perform the inspection with another key.
Confirm how vehicle was brought to workshop.
Vehicle was driven
Vehicle was towed
The malfunction location may be narrowed down by confirming whether the vehicle was driven or towed.
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In troubleshooting, in order to check the problem symptoms accurately and judge correctly, avoid having any preconceptions. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past malfunctions that seem unrelated may also help in some cases.
The following 5 items are important points for problem analysis:
| What | Vehicle model, system name |
| When | Date and time, frequency, whether the problem occurred recently or has been occurring for a long time |
| Where | Whether the problem occurs at specified place |
| Under what conditions? | Whether the doors were locked or unlocked, whether the engine switch was on (IG), whether the engine was running |
| How did it happen? | Ask the customer for details about the vehicle operating conditions, environment and malfunction.* |
*: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DTCs.
If the entry unlock function does not operate.
If the entry lock function does not operate.
If the entry lock/unlock function does not operate for all doors.
If both the entry lock and unlock functions do not operate.
If there is no power even when the engine switch is pressed (does not turn on (ACC)).
If the wireless lock and unlock functions do not operate.
If the engine does not start with the push-button start function.
If an engine start was attempted by holding the electrical key transmitter sub-assembly near the engine switch and then pressing the engine switch.
If the interior warning buzzers do not sound.
If the outside warning buzzers do not sound.
If the steering does not unlock.
If it is suspected that wave interference is likely, be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem.
Specific locations where the system does not operate (such as near TV towers, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc.).
Specific times when the system does not operate.
If the symptoms occurred immediately after purchase or only recently.
If the system does not operate only when near specific vehicles (there may be wave interference from the wireless systems of other vehicles).
If the system operates intermittently.
If the electrical key transmitter sub-assembly is bundled together with other items.
If the electrical key transmitter sub-assembly is carried together with other electronic devices, such as cell phones, personal computers, portable music players, other electrical key transmitter sub-assemblies, etc. (keep the electrical key transmitter sub-assembly at least 0.1 m (0.328 ft.) away from such items).
Where the electrical key transmitter sub-assembly is being kept when not in use: If the electrical key transmitter sub-assembly is being placed within 1 m (3.28 ft.) of items such as TVs, DVD recorders, induction cookers, rice cookers, dishwashers, modems, cell phones, personal computers, microwave ovens, desk or floor lamps, cordless telephones, etc.
If there are electronic devices that transmit radio waves placed in the vehicle.
When the transmitter battery was last replaced. The transmitter battery can be checked roughly using the "Key Low Battery" item in the Data List.
If the customer installed any optional components (theft deterrent devices, wireless fog lights, etc.) to the vehicle.
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Measure the battery voltage.
11 to 14 V
A simple method to determine whether the battery is depleted is to operate the horn.
If the battery voltage is below 11 V, recharge or replace the battery.
Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected.
Check the connections of each connector and check them for deformation or damage.
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Using the GTS, enter the following menus: Health Check.
If DTCs are output, first perform troubleshooting for the DTCs.
Save all output DTCs and operation history.
Operation history can also be checked using the "Utility" menu of the GTS.
| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| Wireless door lock control system and entry and start system DTCs are output | B |
| DTCs other than wireless door lock control system and entry and start system DTCs are output | C |
A
B
C
Based on the customer problem analysis, check the problem symptoms.
Entry and start system (for Start Function):
Entry and start system (for Entry Function):
| Result | Proceed to |
|---|---|
| The problem symptom can be confirmed | A |
| The problem symptom cannot be confirmed | B |
A
B
Use the following customize setting methods to confirm that the entry and start system is on.
Check setting using GTS
Check setting on multi-display
Check setting by manual operation
Check for the customize setting.
Use the following customize setting methods to confirm that the wireless door lock control system is on.
Check setting using GTS
Check setting by manual operation
Check for the customize setting.
Even when the entry and start system is turned off in the customize setting, the engine can be started by an emergency key operation.
If the entry and start system or wireless door lock control system is off, all entry and start functions, wireless functions or power back door functions do not operate.
| Result | Proceed to |
|---|---|
| Wireless door lock control system and entry and start system are on | A |
| Entry and start system is off | B |
| Wireless door lock control system is off | C |
A
B
C
Check the power door lock control system.
| Result | Proceed to |
|---|---|
| Power door lock control system operates properly | A |
| Power door lock control system does not operate properly | B |
A
B
Check the wireless door lock control system.
| Result | Proceed to |
|---|---|
| All functions operate properly | A |
| Wireless lock/unlock function does not operate (entry and start function also does not operate) | B |
| Wireless lock/unlock function does not operate (entry and start function operates) | C |
| Only back door open function does not operate | D |
| Door ajar warning function does not operate | E |
| Answer-back (buzzer sounds and hazard lights flash) function does not operate | F |
A
B
C
D
E
F
Check the entry and start system.
| Result | Proceed to |
|---|---|
| All functions operate properly | A |
| Entry lock/unlock function does not operate from all doors (wireless function also does not operate) | B |
| Entry lock/unlock function does not operate from all doors (wireless function operates) | C |
| Entry lock function/unlock function do not operate only from driver side door | D |
| Entry lock function/unlock function do not operate only from front passenger side door | E |
| Entry lock function does not operate only from driver side door (unlock operates) | F |
| Entry lock function does not operate only from front passenger side door (unlock operates) | G |
| Entry unlock function does not operate only from driver side door (lock operates) | H |
| Entry unlock function does not operate only from front passenger side door (lock operates) | I |
| Back door lock function/unlock function do not operate | J |
| Back door lock function does not operate | K |
| Back door unlock function does not operate | L |
| Entry and start system exterior warning and answer-back buzzer do not sound | M |
| Entry and start system interior warning does not sound | N |
A
B
C
D
E
F
G
H
I
J
K
L
M
N
Check the entry and start system.
| Result | Proceed to |
|---|---|
| All functions operate properly | A |
| Power source mode changing function does not operate (power source mode does not change to on (ACC), but changes to on (IG)) | B |
| Steering lock function does not operate | C |
| Security indicator light does not blink | D |
| Result | Proceed to |
|---|---|
| Push-button start function does not operate | E |
| Immobiliser function does not operate | F |
| Steering wheel cannot be unlocked | G |
| Power source mode changing function does not operate (does not change to on (ACC) or on (IG)) | H |
| Power source mode changing function does not operate (changes to on (ACC), but not on (IG)) | I |
| Immobiliser function does not operate (Security indicator light does not turn off) | J |
A
B
C
D
E
F
G
H
I
J
Check the electrical key registration function for malfunctions.
Refer to the Service Bulletin.
| Result | Proceed to |
|---|---|
| All functions operate properly | A |
| Cannot register new keys | B |
| Cannot register additional keys | C |
| Additional key registration display is not displayed | D |
A
B
C
D