RM36D0EC _58 Vehicle Interior _083092 DOOR LOCK _0712251 WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Entry and Start System) C

DOOR LOCK WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Entry and Start System) B124296 Wireless Door Lock Tuner Component Internal Failure

DESCRIPTION

The door control receiver receives a signal from the electrical key transmitter sub-assembly and sends signals to the main body ECU (multiplex network body ECU) through the certification ECU (smart key ECU assembly) via CAN communication system. The certification ECU (smart key ECU assembly) sends door lock/unlock commands to the main body ECU (multiplex network body ECU).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B124296	Wireless Door Lock Tuner Component Internal Failure	One of the following conditions is met: · Short in RDAM between the certification ECU (smart key ECU assembly) and door control receiver. · Short in RCO between the certification ECU (smart key ECU assembly) and door control receiver.	· Door control receiver · Certification ECU (smart key ECU assembly) · Harness or connector

WIRING DIAGRAM

4.875,0.938 5.333,1.135 0.458,0.198 10 false M59 4.833,2.219 5.354,2.438 0.521,0.219 10 false G170 5.781,0.427 6.24,0.625 0.458,0.198 10 false 5 V 5.833,1.125 6.292,1.323 0.458,0.198 10 false +B 5.271,0.833 5.729,1.031 0.458,0.198 10 false RCO 5.271,1.531 5.729,1.729 0.458,0.198 10 false RDAM 5.281,2.219 5.74,2.417 0.458,0.198 10 false E 5.229,2.844 6.948,3.448 1.719,0.604 10 false Certification ECU (Smart Key ECU Assembly) 2.156,2.115 2.865,2.323 0.708,0.208 10 false 12 2.156,1.51 2.885,1.781 0.729,0.271 10 false 2 2.156,0.833 2.885,1.094 0.729,0.26 10 false 8 1.906,0.833 2.365,1.031 0.458,0.198 10 false +5 1.698,1.521 2.156,1.719 0.458,0.198 10 false DATA 1.781,2.219 2.24,2.417 0.458,0.198 10 false GND 0.865,1.427 1.323,1.625 0.458,0.198 10 false IC 0.708,2.667 1.896,2.865 1.188,0.198 10 false M8 0.688,2.813 2.094,3.385 1.406,0.573 10 false Door Control Receiver 4.938,0.729 5.167,0.885 0.229,0.156 10 false 21 4.938,2 5.167,2.156 0.229,0.156 10 false 29 4.927,1.417 5.156,1.573 0.229,0.156 10 false 11 4.885,1.625 5.344,1.823 0.458,0.198 10 false M59

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.

·

If the certification ECU (smart key ECU assembly) is replaced, refer to Service Bulletin.

·

When replacing or inspecting the door control receiver and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the door control receiver, entry and start function and wireless control function performance may be affected.

·

Check that there are no electrical key transmitter sub-assemblies in the vehicle.

·

This DTC is not stored within 10 seconds of the ignition switch being turned from ON to off.

·

When replacing the door control receiver, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal.

·

It is necessary to perform initialization after registration of the transmitter IDs into the door control receiver if the door control receiver has been replaced.

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for initialization:

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>INITIALIZATION202409,999999,_53,_083075,_0403331,RM100000002NGX2,

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for registration:

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>REGISTRATION202409,999999,_53,_083075,_0403331,RM100000002NGX1,

PROCEDURE

1.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

Disconnect the M8 door control receiver connector.

4.667,0.333 5.167,0.583 0.5,0.25 3.333,0.333 3.833,0.583 0.5,0.25 3.698,1.24 3.917,2 3.917,2 4.167,2 true 3.583,1.156 3.25,2 3.25,2 3,2 true 4.604,1.26 4.833,2.25 4.833,2.25 5.083,2.25 true 3.458,0.375 3.917,0.573 0.458,0.198 10 false M59 4.75,0.385 5.208,0.583 0.458,0.198 10 false G170 4.219,1.938 4.677,2.135 0.458,0.198 10 false RCO 2.583,1.927 3.135,2.083 0.552,0.156 10 false RDAM 5.146,2.177 5.698,2.333 0.552,0.156 10 false E 0.26,0.167 0.719,0.365 0.458,0.198 10 false *a

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

Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
M59-11 (RDAM) - G170-29 (E)	Always	11 to 14 V
M59-21 (RCO) - G170-29 (E)	Always	Pulse generation at regular intervals (Below 1 V ←→ 4.5 to 5.5 V)

Standard Resistance:

Tester Connection	Condition	Specified Condition
G170-29 (E) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

REPLACE DOOR CONTROL RECEIVER

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL RECEIVER>REMOVAL202409,999999,_58,_083092,_0403683,RM100000002NG1J,

2.CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) AND BODY GROUND)

Disconnect the M59 certification ECU (smart key ECU assembly) connector.

Disconnect the M8 door control receiver connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
M59-11 (RDAM) - M8-2 (DATA)	Always	Below 1 Ω
M59-21 (RCO) - M8-8 (+5)	Always	Below 1 Ω
M8-12 (GND) - Body ground	Always	Below 1 Ω
M8-2 (DATA) or M59-11 (RDAM) - Other terminals and body ground	Always	10 kΩ or higher
M8-8 (+5) or M59-21 (RCO) - Other terminals and body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR