DTC B2285: Steering Lock Position Signal Correlation [11/2021 - ]: Procedure

1. Perform the diagnosis for CAN communication system.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

   Is the check result OK?

   Result	Proceed to
   Yes	A
   No (Perform the inspection according to the diagnosis for CAN communication system.)	B

Result: 

B 

PERFORM THE INSPECTION ACCORDING TO THE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

A 

See step  2

1. Turn the ignition switch to ON.
2. Read the DTC of [Keyless Access with Push Button Start(Collation)] using the GTS.

   Is DTC B2785 displayed? (Current code)

   Result	Proceed to
   Yes (Perform the diagnosis of DTC B2785.)	A
   No	B

Result: 

A 

PERFORM THE DIAGNOSIS OF DTC B2785. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

Result: 

B 

See step  3

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 - ]

   When locked: 

   • Lock's sensor status: ON
   • Unlock's sensor status: OFF
   • Lock confirmation: Confirmed
   • Unlock confirmation: Unconfirmed

   When unlocked: 

   • Lock's sensor status: OFF
   • Unlock's sensor status: ON
   • Lock confirmation: Unconfirmed
   • Unlock confirmation: Confirmed

   HINT: 

   To lock the steering lock, turn off the power supply, and open → close, or close → open the driver's door. To unlock the steering lock, turn the ignition switch to ACC ON or IGN ON.

   Is the display shown as above according to the steering lock status?

   Result	Proceed to
   Yes	A
   No (Replace the steering lock actuator assembly.)	B

Result: 

B 

REPLACE STEERING LOCK ACTUATOR ASSEMBLY. Refer to  DISASSEMBLY [11/2021 - ] 

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 - ]

   When locked: 

   • Steering unlock SW: OFF

   When unlocked: 

   • Steering unlock SW: ON

   HINT: 

   To lock the steering lock, turn off the power, and open → close, or close → open the driver's door. To unlock the steering lock, turn the ignition switch to ACC ON or IGN ON.

   Is the display shown as above according to the steering lock status?

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

Result: 

A 

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

Result: 

B 

See step  5

1. Turn the ignition switch to OFF.
2. Check the fuse.

   Is the check result OK?

   Result	Proceed to
   Yes	A
   No (Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short circuited.)	B

Result: 

B 

REPLACE FUSE 

1. Replace the fuse.
2. When the replaced fuse is blown immediately, check the power supply circuit for short circuited.

Result: 

A 

See step  6

1. Disconnect the connector from the smart key ECU assembly.
2. Turn the ignition switch to ON.
3. Using a tester, measure the voltage between smart key ECU assembly connectors.

   Connector & terminal

   F8-1 (+B2) (+) - Chassis ground (-)

   F8-4 (+B1) (+) - Chassis ground (-)

   Is the voltage 9.5 - 16 V?

   Result	Proceed to
   Yes	A
   No (Check the power supply circuit.)	B

Result: 

B 

CHECK THE POWER SUPPLY CIRCUIT 

Result: 

A 

See step  7

1. Turn the ignition switch to OFF.
2. Using a tester, measure the resistance between the smart key ECU assembly connector and chassis ground.

   Connector & terminal

   F9-17 (GND2) - Chassis ground

   F8-20 (GND1) - Chassis ground

   Is the resistance less than 1 Ω?

   Result	Proceed to
   Yes	A
   No (Repair or replace the open circuit of harness.)	B

Result: 

B 

REPAIR OR REPLACE THE OPEN CIRCUIT OF HARNESS 

Result: 

A 

See step  8

1. Connect the connector to the smart key ECU assembly.
2. Using a tester, measure the voltage between the steering lock actuator assembly connector and chassis ground.

   Connector & terminal

   F6-4 (SLP1) (+) - Chassis ground (-)

   Does the following voltage occur? Steering lock: 9.5 V or more → Steering unlock: 1 V or less

   Result	Proceed to
   Yes	A
   No (Replace the steering lock actuator assembly.)	B

Result: 

B 

REPLACE STEERING LOCK ACTUATOR ASSEMBLY. Refer to  DISASSEMBLY [11/2021 - ] 

Result: 

A 

See step  9

1. Disconnect the connector from the steering lock actuator assembly.
2. Using a tester, measure the resistance between the smart key ECU assembly connector and steering lock actuator assembly connector.

   Connector & terminal

   F8-11 (SLP) - F6-4 (SLP1)

   Is the resistance less than 1 Ω?

   Result	Proceed to
   Yes	A
   No (Repair or replace the open circuit of harness.)	B

Result: 

B 

REPAIR OR REPLACE THE OPEN CIRCUIT OF HARNESS 

Result: 

A 

See step  10

1. Using a tester, measure the resistance between the smart key ECU assembly connector and chassis ground.

   Connector & terminal

   F8-11 (SLP) - Chassis ground

   Is the resistance 10 kΩ or more?

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

Result: 

A 

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

Result: 

B 

REPAIR OR REPLACE THE SHORT CIRCUIT OF THE HARNESS