RM36D0EC _58 Vehicle Interior _083094 THEFT DETERRENT / KEYLESS ENTRY _0403000 SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) C

THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) B227411 ACC Circuit Short to Ground

DESCRIPTION

This DTC is stored when a malfunction in the ACC output circuit is detected. The ACC output circuit is the circuit between terminal ACCD of the certification ECU (smart key ECU assembly) and the ACC relay.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B227411	ACC Circuit Short to Ground	The ACC relay circuit of the certification ECU (smart key ECU assembly) is malfunctioning. (1-trip detection logic*) HINT: When the voltage at terminal ACCD is not at the standard, the system is determined to be malfunctioning.	· Power distribution box assembly · Certification ECU (smart key ECU assembly) · Harness or connector	DTC Output Confirmation Operation: Wait 10 seconds after turning the ignition switch to ACC or ON, and then wait another 10 seconds after turning the ignition switch off.

*: Only detected while a malfunction is present.

Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected	Fail-safe Function when Malfunction Detected
· If there is a malfunction due to the ACC relay being stuck on, the ACC relay does not turn off even though the ignition switch is off. · If there is a malfunction due to the ACC relay being stuck off, the ACC relay does not turn on even though the ignition switch is ACC. HINT: The ignition switch can be turned to ON and the engine can be started.	-

Related Data List and Active Test Items
DTC No.	Data List and Active Test
B227411	Power Source Control · ACC Relay Monitor

WIRING DIAGRAM

2.354,0.74 3.771,1 1.417,0.26 10 false from Battery 3.958,1.854 4.271,2.052 0.313,0.198 10 false 6H 0.938,2.385 1.25,2.583 0.313,0.198 10 false 6B 0.938,1.854 1.25,2.052 0.313,0.198 10 false 6B 5.26,2.302 5.729,2.469 0.469,0.167 10 false ACCD 2.542,2.698 3.406,3.208 0.865,0.51 10 false ACC 1.469,2.042 2.167,2.24 0.698,0.198 10 false ECU-ACC 1.563,3.354 3.729,3.594 2.167,0.24 10 false Power Distribution Box Assembly 5.167,3.75 6.698,4.167 1.531,0.417 10 false Certification ECU (Smart Key ECU Assembly) 3.948,2.375 4.26,2.573 0.313,0.198 10 false 6B 5.167,3.594 5.781,3.823 0.615,0.229 10 false G170 6.219,2.26 6.479,2.438 0.26,0.177 10 false IC 3.958,2.188 4.198,2.365 0.24,0.177 10 false 39 4.01,1.656 4.25,1.833 0.24,0.177 10 false 1 0.938,1.656 1.177,1.833 0.24,0.177 10 false 12 0.948,2.188 1.188,2.365 0.24,0.177 10 false 36 4.979,2.302 5.219,2.479 0.24,0.177 10 false 21 5.771,1.896 6.24,2.063 0.469,0.167 10 false +B

CAUTION / NOTICE / HINT

NOTICE:: ·

When using the GTS with the ignition 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 the vehicle type under manual mode and enter the following menus: Body Electrical / Entry&Start. 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.

·

The smart entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and system system (for Start Function) after confirming that the communication systems are functioning properly.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING202409,999999,_58,_083094,_0403000,RM100000002NSSW,

·

Inspect the fuses of circuits related to this system before performing the following procedure.

·

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

·

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

PROCEDURE

1.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) AND BODY GROUND)

Pre-procedure1

Disconnect the G170 certification ECU (smart key ECU assembly) connector.

Disconnect the 6B power distribution box assembly connector.

Procedure1

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G170-21 (ACCD) - 6B-39	Always	Below 1 Ω
6B-36 - Body ground	Always	Below 1 Ω
G170-21 (ACCD) or 6B-39 - Other terminals and body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

Post-procedure1

None

2.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

1.604,0.031 2.073,0.26 0.469,0.229 1.031,1.927 1.24,1.927 1.24,1.927 2.385,0.958 true 0.177,0.073 0.49,0.271 0.313,0.198 10 false *a 1.667,0.063 2.281,0.26 0.615,0.198 10 false G170 0.604,1.854 1.219,2.052 0.615,0.198 10 false ACCD

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
G170-21 (ACCD) - Body ground	Ignition switch off → Ignition switch ACC	1 V or less → 8.5 V or higher

Result:

Proceed to
OK
NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL202409,999999,_57,_083090,_0403094,RM100000002NG0W,

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)