Engine does not Start [11/2021 - ]: Procedure

1. Place the shift lever in the Parking range. (AT model)
2. Operate the driver's door switch ON/OFF with the ignition switch OFF.
3. Wait for 10 seconds.
4. Place the electrical key transmitter sub-assembly on the driver's seat.
5. Press the engine switch while depressing the brake pedal. (AT model)

   Press the engine switch while depressing the clutch pedal. (MT model)

   Can the engine start?

   Result	Proceed to
   Yes (The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.) HINT:  In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.	A
   No	B

Result: 

A 

THE CIRCUIT HAS RETURNED TO A NORMAL CONDITION AT THIS TIME 

The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

HINT: 

In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Result: 

B 

See step  2

1. Using the GTS, read the DTCs of [Keyless Access with Push Button Start(Power Supply)] and [Keyless Access with Push Button Start(Collation)].
   • Keyless Access with Push Button Start(Power Supply)
   • Keyless Access with Push Button Start(Collation)

   Are any DTCs displayed? (Current code)

   Result	Proceed to
   Yes (Perform the diagnosis according to the DTC.)	A
   No	B

Result: 

A 

PERFORM THE DIAGNOSIS ACCORDING TO THE DTC. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

Result: 

B 

See step  3

1. Place the electrical key transmitter sub-assembly on the driver's seat.
2. Press the engine switch while depressing the brake pedal. (AT model)

   Press the engine switch while depressing the clutch pedal. (MT model)

3. Using the GTS, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start(Power Supply)].

   Refer to DATA LIST / ACTIVE TEST [11/2021 - ]

   • STSW signal monitor

   HINT: 

   If it is difficult to confirm, press the engine switch for approximately five seconds longer.

   Did the data change from [OFF] → [ON]?

   Result	Proceed to
   Yes	A
   No (For AT model.)	B
   No (For MT model.)	C

Result: 

B 

See step  5

Result: 

C 

See step  7

Result: 

A 

See step  4

1. Using the GTS, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start (Collation)].

   Refer to DATA LIST / ACTIVE TEST [11/2021 - ]

   • Engine start permission request reception status

   Is [Reception] displayed with ignition switch ON, and [Not yet received] displayed in other positions?

   Result	Proceed to
   Yes (Perform the diagnosis for engine system.)	A
   No (Replace the smart key ECU assembly.)	B

Result: 

A 

PERFORM THE DIAGNOSIS FOR ENGINE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

B 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

1. Using the GTS, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start (Power Supply)].

   Refer to DATA LIST / ACTIVE TEST [11/2021 - ]

   • Shift P signal(AT only)

   Is [ON] displayed in parking position, and [OFF] displayed in other positions?

   Result	Proceed to
   Yes	A
   No	B

Result: 

B 

See step  15

Result: 

A 

See step  6

1. Using the GTS, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start (Power Supply)].

   Refer to DATA LIST / ACTIVE TEST [11/2021 - ]

   • Stop lamp SW

   Is [ON] displayed when brake pedal depressed, and [OFF] displayed when brake pedal not depressed?

   Result	Proceed to
   Yes	A
   No	B

Result: 

B 

See step  13

Result: 

A 

See step  7

1. Using the GTS, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start (Power Supply)].

   Refer to DATA LIST / ACTIVE TEST [11/2021 - ]

   • Shift N signal(AT only)
   • Clutch SW(MT only)

   Is [ON] displayed when the clutch pedal is depressed (MT model) or the shift lever is at the neutral position (AT model), or [OFF] displayed for other conditions?

   Result	Proceed to
   Yes	A
   No (For AT model.)	B
   No (For MT model.)	C

Result: 

B 

See step  10

Result: 

C 

See step  11

Result: 

A 

See step  8

1. Operate the engine switch to perform the power supply switching and check steering lock condition during ACC ON condition.

   Is the steering lock in unlocked condition?

   Result	Proceed to
   Yes	A
   No (Refer to "The Steering Lock is not Released" and perform inspection.)	B

Result: 

B 

REFER TO "THE STEERING LOCK IS NOT RELEASED" AND PERFORM INSPECTION 

w/ Immobilizer Code ECU: Refer to The Steering Lock cannot be Released (c0 Model) [11/2021 - ] 

w/o Immobilizer Code ECU: Refer to The Steering Lock cannot be Released (except for c0 Model) [11/2021 - ] 

Result: 

A 

See step  9

1. Turn the ignition switch to OFF.
2. Disconnect the connector from ECM.
3. Using a tester, measure the voltage between the ECM connector and chassis ground in the following procedures.
   1. Depress the brake pedal (AT model) or clutch pedal (MT model), and push the engine switch. (Measure within 10 seconds.)
   2. Release the engine switch from the condition of step 1. above.

   Connector & terminal

   A5-6 (IMO1) (+) - Chassis ground (-)

   Does the voltage value change from 1 V or less to +B-2 V or more in the step 1, and return to 1 V or less in the step 2?

   Result	Proceed to
   Yes (Perform the diagnosis for engine system.)	A
   No (Replace the smart key ECU assembly.)	B

Result: 

A 

PERFORM THE DIAGNOSIS FOR ENGINE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

B 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

1. Check the park/neutral position switch assembly switch.

   Refer to INSPECTION [11/2021 - ]

   Is the inhibitor switch OK?

   Result	Proceed to
   Yes (Replace the smart key ECU assembly.)	A
   No (Replace the inhibitor switch.)	B

Result: 

A 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

1. Check the clutch start switch.

   Refer to INSPECTION [11/2021 - ]

   Is the clutch start switch OK?

   Result	Proceed to
   Yes	A
   No (Replace the clutch start switch.)	B

Result: 

B 

REPLACE CLUTCH START SWITCH ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

A 

See step  12

1. Turn the ignition switch to OFF.
2. Disconnect the connector from the smart key ECU assembly.
3. Using a tester, measure the resistance between the smart key ECU assembly connector and the clutch start switch connector, and between the clutch start switch connector and fuse.

   Connector & terminal

   F8-14 (CLUT) - A27-2

   A27-1 - AM2 NO. 2 fuse

   Is the resistance less than 10 Ω?

   Result	Proceed to
   Yes (Replace the smart key ECU assembly.)	A
   No (Repair or replace the open circuit of harness.)	B

Result: 

A 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

REPAIR OR REPLACE THE OPEN CIRCUIT OF HARNESS 

1. Check the stop light switch assembly.

   Refer to ON-VEHICLE INSPECTION [11/2021 - ]

   Is the stop light switch OK?

   Result	Proceed to
   Yes	A
   No (Replace the stop light switch assembly.)	B

Result: 

B 

REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

A 

See step  14

1. Turn the ignition switch to OFF.
2. Disconnect the connector from the smart key ECU assembly.
3. Using a tester, measure the resistance between the smart key ECU assembly connector and the stop light switch assembly connector, and between the stop light switch assembly connector and fuse.

   Connector & terminal

   F9-27 (STP1) - A23-2

   A23-1 - STOP fuse

   Is the resistance less than 10 Ω?

   Result	Proceed to
   Yes (Replace the smart key ECU assembly.)	A
   No (Repair or replace the open circuit of harness.)	B

Result: 

A 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

REPAIR OR REPLACE THE OPEN CIRCUIT OF HARNESS 

1. Turn the ignition switch to OFF.
2. Disconnect the connector from select lever.
3. Using the tester, measure the resistance of the P range switch (transmission floor shift assembly).

   Terminals

   F25-2 - F25-3

   Does the resistance change from 10 MΩ or more ←→ less than 10 Ω according to the shift lever operation?

   Result	Proceed to
   Yes	A
   No (Replace the P range switch (transmission floor shift assembly).)	B

Result: 

B 

REPLACE P RANGE SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY). Refer to  REMOVAL [11/2021 - ] 

Result: 

A 

See step  16

1. Turn the ignition switch to OFF.
2. Disconnect the connector from the smart key ECU assembly.
3. Using a tester, measure the resistance between the smart key ECU assembly connector and the P range switch (transmission floor shift assembly) connector, and between the P range switch (transmission floor shift assembly) connector and chassis ground.

   Connector & terminal

   F25-2 - F9-18

   F25-3 - Chassis ground

   Is the resistance less than 10 Ω?

   Result	Proceed to
   Yes (Replace the smart key ECU assembly.)	A
   No (Repair or replace the open circuit of harness.)	B

Result: 

A 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

REPAIR OR REPLACE THE OPEN CIRCUIT OF HARNESS