Caution / Notice / Hint

NOTE:

When using the Techstream with the vehicle engine switch off, connect the Techstream to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
The smart access system with push-button start (for Start Function) uses the LIN communication system and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Refer to HOW TO PROCEED WITH TROUBLESHOOTING (07/2015 -) ). Troubleshoot the smart access system with push-button start (for Start Function) after confirming that the communication systems are functioning properly.
If the smart access system with push-button start (for Start Function) is disabled through the customize function, enable the system before performing troubleshooting (Refer to CUSTOMIZE PARAMETERS (07/2015 -) ).
Before replacing the certification ECU (smart key ECU assembly), steering lock ECU (steering lock actuator assembly), ECM or ID code box (immobilizers code ECU), refer to smart access system with push-button start (for Start Function) Precaution (Refer to PRECAUTION (07/2015 -) ).
Inspect the fuses of circuits related to this system before performing the following inspection procedure.
If the steering lock ECU (steering lock actuator assembly) is replaced, be sure to confirm that the steering can be unlocked by turning the steering wheel to the left and right before starting the engine. If the steering is locked for any reason, open and close a door with the engine switch off, and then unlock the steering by pressing the engine switch. This prevents the engine from starting while the steering is locked.
After completing repairs, confirm that the problem does not recur.

HINT:

When the certification ECU (smart key ECU assembly) is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.

RELATED DATA LIST AND ACTIVE TEST ITEMS

Problem Symptom	Data List Item	Active Test Item
Engine does not start	Power Source Control Stop Light Switch1 Steering Unlock Switch Power Supply Condition IG1 Relay Monitor(Inside) IG2 Relay Monitor(Inside) IG1 Relay Monitor(Outside) IG2 Relay Monitor(Outside) Latch Circuit Shift P Signal Neutral SW/ Clutch SW Starter Request Signal Smart Access Immobilizer S Code Check L Code Check Engine Start Request Starting Control Ignition Starter SW Shift Position P or N	-

Problem Symptom

Data List Item

Active Test Item

Engine does not start

Power Source Control

Stop Light Switch1
Steering Unlock Switch
Power Supply Condition
IG1 Relay Monitor(Inside)
IG2 Relay Monitor(Inside)
IG1 Relay Monitor(Outside)
IG2 Relay Monitor(Outside)
Latch Circuit
Shift P Signal
Neutral SW/ Clutch SW
Starter Request Signal

Smart Access

Immobilizer
S Code Check
L Code Check
Engine Start Request

Starting Control

Ignition
Starter SW
Shift Position P or N

HINT:

If the brake pedal is repeatedly depressed while the engine is stopped, the brake booster pressure is released and the force required to depress the brake pedal to illuminate the stop lights increases.