PUSH-BUTTON START

DTC Code	DTC Name
	HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

Result

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CUSTOMER PROBLEM ANALYSIS CHECK

Tech Tips

In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. 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 problems 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, time, occurrence frequency, whether the problem occurred recently or has been occurring for a long time
Where	Whether the problem occurs at a specific location
Under what conditions?	Whether the doors were locked or unlocked, whether the power switch was on, whether the hybrid control system has started
How did it happen?	Problem symptoms*

*: 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 wireless lock and unlock functions do not operate.
If there is no power even when the power switch is pressed (does not turn on (ACC)).
If the hybrid control system does not start with the push-button start function.
If the outside warning buzzer does not sound.
If the customer attempted to start the hybrid control system by touching the electrical key to the power switch and then pressing the power switch.
If the interior warning buzzers do not sound.
If the steering does not unlock.
Any other details concerning the problem.

If it is thought 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:

Whether or not symptoms occurred immediately after purchase or only recently.

Whether or not the symptoms occurred even when the key was near the vehicle (electrical key antenna).
If the system does not operate only when near specific vehicles (there may be an effect from electric waves from the wireless systems of other vehicles).
If the system operates intermittently.
If the key is bundled together with other items.
If the key is carried together with other electronic devices, such as cell phones, personal computers, portable music players, other electrical keys, etc. (keep the key at least 0.1 m (0.33 ft.) away from such items).
Where the key is being kept when not in use:

Whether or not the key is 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 electric waves placed in the vehicle.
When the key battery was last replaced (when the battery is low):

The key battery can be checked using the "Key Low Battery" item in the Data List.

Click here
If the customer installed any optional components (theft deterrent devices, wireless fog lights, etc.) to the vehicle.

Result

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NEXT

INSPECT BASIC OPERATION

Inspect the auxiliary battery voltage.

Standard Voltage

11 to 14 V
Tech Tips
- It may be possible to tell whether the vehicle auxiliary battery is discharged by operating the horn.
- If the auxiliary battery voltage is less than 11 V, charge or replace it.

Standard Voltage
11 to 14 V

Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected.

Result

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NEXT

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

Use the GTS to check if the CAN communication system is functioning normally (Click here for LHD, Click here for RHD).

Result

Result	Proceed to
CAN DTC is not output	A
CAN DTC is output (for LHD)	B
CAN DTC is output (for RHD)	C

B

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

C

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

A

INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

Use the GTS to check if the LIN communication system is functioning normally.

Result

Result	Proceed to
LIN DTC is not output	A
LIN DTC is output	B

B

GO TO LIN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

A

CHECK FOR DTC*

Check for DTCs and note any codes that are output.

Click here

Result

Result	Proceed to
DTC is not output	A
Steering lock system DTC is output	B
Engine immobiliser system DTC is output	C
Push-button start DTC is output	D

B

GO TO STEERING LOCK SYSTEM Click here

C

GO TO ENGINE IMMOBILISER SYSTEM Click here

D

GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

A

PROBLEM SYMPTOMS TABLE

Refer to Problem Symptoms Table.

Click here

Result

Result	Proceed to
Fault is not listed in problem symptoms table	A
Fault is listed in problem symptoms table	B

B

GO TO STEP 9 Click here

A

OVERALL ANALYSIS AND TROUBLESHOOTING*

Operation Check.

Click here
Terminals of ECU.

Click here

Data List / Active Test.

Click here

Result

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NEXT

REPAIR OR REPLACEMENT

Result

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NEXT

CHECK FOR DTC*

Clear the DTCs.

Click here

Recheck for DTCs.

Click here

Tech Tips

Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

Result

Result	Proceed to
DTC is not output	A
DTC is output	B

A

END

B

GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

PUSH-BUTTON START HOW TO PROCEED WITH TROUBLESHOOTING