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))  B228B  System Voltage or GND Energization Malfunction  


SYSTEM DESCRIPTION

This DTC is stored when there is a malfunction in the certification ECU (smart key ECU assembly) battery power supply circuit or ground circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B228B System Voltage or GND Energization Malfunction A malfunction is detected in the certification ECU (smart key ECU assembly) battery power supply circuit or ground circuit. (1-trip detection logic*)
·

AM2 fuse

·

Wire harness or connector


DTC Output Confirmation Operation:

Drive the vehicle.



*: 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
The engine stopped while driving. -

Related Data List and Active Test Items
DTC No. Data List and Active Test
B228B -

WIRING DIAGRAM

B463086E10
2.094,0.458 3.927,0.656 1.833,0.198 10 false from Battery 4.438,0.635 5.042,1.073 0.604,0.438 10 false AM2 5.688,0.479 6.292,0.917 0.604,0.438 10 false +B 5.688,1.281 6.292,1.719 0.604,0.438 10 false E 5.51,0.385 6.115,0.823 0.604,0.438 10 false 3 5.427,1.188 6.031,1.625 0.604,0.438 10 false 18 5.438,1.979 6.948,2.354 1.51,0.375 10 false Certification ECU (Smart Key ECU Assembly) 5.438,1.833 6.354,2.063 0.917,0.229 10 false I1

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.

·

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 start 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 (NR Series))>HOW TO PROCEED WITH TROUBLESHOOTING

·

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

·

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



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (POWER SOURCE)
a.
B416821C96
1.448,2.427 1.865,2.677 0.417,0.25 2.417,4.385 2.167,4.385 2.167,4.385 2.167,3.552 true 0.406,3.031 0.719,3.188 0.313,0.156 10 false *a 1.604,2.469 1.958,2.708 0.354,0.24 10 false I1 2.448,4.292 2.771,4.521 0.323,0.229 10 false +B
*a Front view of wire harness connector
(to Certification ECU (Smart Key ECU Assembly))


Disconnect the I1 certification ECU (smart key ECU assembly) connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I1-3 (+B) - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE

2.CHECK HARNESS AND CONNECTOR (GROUND)
a.
B416821C97
1.469,2.427 1.885,2.677 0.417,0.25 1.406,4.375 1.156,4.375 1.156,4.375 1.156,3.792 true 0.333,2.917 0.625,3.115 0.292,0.198 10 false *a 1.625,2.458 2.073,2.76 0.448,0.302 10 false I1 1.458,4.292 1.615,4.49 0.156,0.198 10 false E
*a Front view of wire harness connector
(to Certification ECU (Smart Key ECU Assembly))


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

Standard Resistance:
Tester Connection Condition Specified Condition
I1-18 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

END (TEMPORARY CONNECTION FAILURE IS SUSPECTED)

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE