RM3660EC _58 Vehicle Interior _080747 THEFT DETERRENT / KEYLESS ENTRY _0586354 SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model (NR Series)) C

THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model (NR Series)) B2779 Engine Starter Communication Malfunction

DESCRIPTION

If the remote engine start ECU does not respond to the certification ECU (smart key ECU assembly) or the remote engine start ID is not registered, this DTC is stored.

HINT:: Registration status of the remote engine start ECU ID can be checked using the "Wireless C Code" item in the Data List.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2779	Engine Starter Communication Malfunction	One of the following conditions is met (1 trip detection logic*): · A remote start communication error occurs. · Response is not possible. · Registration has not been performed.	· CAN communication system · Remote engine start ECU · Certification ECU (smart key ECU assembly)	DTC output confirmation operation: A remote start operation is performed.

*: Only output while a malfunction is present.

Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected	Fail-safe Operation when Malfunction Detected
Engine does not start with remote start operation	Engine cannot be started by remote start operation only

Related Data List and Active Test
DTC No.	Data List and Active Test
B2779	Entry&Start · Wireless Starter Com ID · Wireless C Code

CAUTION / NOTICE / HINT

NOTICE:: ·

When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

·

Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output.

·

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

·

After performing repairs, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

Check for CAN communication system DTCs.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model (NR Series))>DIAGNOSIS SYSTEM202304,202307,_57,_080743,_0598517,RM100000002B6V0,202307,202403,_57,_080743,_0598517,RM100000002D3A3,202403,202502,_57,_080743,_0598517,RM100000002JOVA,202502,999999,_57,_080743,_0598517,RM100000002RPYX,

OK:: CAN communication DTCs are not output.

Result:

Proceed to
OK
NG

2.READ VALUE USING GTS (WIRELESS C CODE)

GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model (NR Series))>DIAGNOSTIC TROUBLE CODE CHART202304,999999,_57,_080743,_0598517,RM100000002B6V5,

2.READ VALUE USING GTS (WIRELESS C CODE)

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

Enter the following menus: Body Electrical / Entry&Start / Data List.

Read the Data List according to the display on the GTS.

Body Electrical > Entry&Start > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Wireless C Code	Registration status between remote engine start ECU and certification ECU (smart key ECU assembly)	No Regd or Regd	No Regd: Remote starter ID not registered to remote engine start ECU and certification ECU (smart key ECU assembly) Regd: Remote starter ID registered to remote engine start ECU and certification ECU (smart key ECU assembly)	Problems may be caused by the following: · DTC B2779 is stored. · Remote engine start ECU registration has not been performed. · Malfunctions in the certification ECU (smart key ECU assembly) or remote engine start ECU.

Body Electrical > Entry&Start > Data List

Tester Display
Wireless C Code

50003 125 44

Result:

Result	Proceed to
"No Regd" is displayed on the GTS	A
"Regd" is displayed on the GTS	B

3.REGISTER REMOTE ENGINE STARTER ID

REPLACE REMOTE ENGINE START ECU

3.REGISTER REMOTE ENGINE STARTER ID

Result:

Proceed to
NEXT

4.READ VALUE USING GTS (WIRELESS C CODE)

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

Enter the following menus: Body Electrical / Entry&Start / Data List.

Read the Data List according to the display on the GTS.

Body Electrical > Entry&Start > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Wireless C Code	Registration status between remote engine start ECU and certification ECU (smart key ECU assembly)	No Regd or Regd	No Regd: Remote starter ID not registered to remote engine start ECU and certification ECU (smart key ECU assembly) Regd: Remote starter ID registered to remote engine start ECU and certification ECU (smart key ECU assembly)	Problems may be caused by the following: · DTC B2779 is stored. · Remote engine start ECU registration has not been performed. · Malfunctions in the certification ECU (smart key ECU assembly) or remote engine start ECU.

Body Electrical > Entry&Start > Data List

Tester Display
Wireless C Code

50003 125 44

Result:

Result	Proceed to
"Regd" is displayed on the GTS	A
"No Regd" is displayed on the GTS	B

5.CHECK REMOTE ENGINE STARTER FUNCTION

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

5.CHECK REMOTE ENGINE STARTER FUNCTION

Check the remote engine starter function.

OK:: Remote engine starter functions operate normally.

Result:

Proceed to
OK
NG

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING201906,999999,_V1,_080724,_0393250,RM100000001HWSQ,

REPLACE REMOTE ENGINE START ECU