RM35X0E _58 Vehicle Interior _078336 DOOR LOCK _0397387 WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Entry and Start System) C

DOOR LOCK  WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Entry and Start System)  B1242  Wireless Door Lock Tuner Circuit Malfunction  


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
B1242 Wireless Door Lock Tuner Circuit Malfunction 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

B555131E01
4.865,0.938 5.323,1.135 0.458,0.198 10 false N155 4.865,2.219 5.323,2.417 0.458,0.198 10 false N156 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 5.344,2.844 6.76,3.438 1.417,0.594 10 false Certification ECU (Smart Key ECU Assembly) 2.156,2.115 2.865,2.323 0.708,0.208 10 false 12*1, 1*2 2.156,1.51 2.667,1.708 0.51,0.198 10 false 2*1, 5*2 2.156,0.833 2.688,1.031 0.531,0.198 10 false 8*1, 4*2 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 0.698,2.677 2.323,2.969 1.625,0.292 10 false Z30*1, V32*2 0.688,2.833 2.094,3.406 1.406,0.573 10 false Door Control Receiver 4.927,0.74 5.156,0.896 0.229,0.156 10 false 18 4.938,2.031 5.167,2.188 0.229,0.156 10 false 18 4.927,1.417 5.156,1.573 0.229,0.156 10 false 19 0.271,3.167 1.719,3.427 1.448,0.26 10 false *1: for 12 Pin Type 0.271,3.406 1.719,3.667 1.448,0.26 10 false *2: for 5 Pin Type 4.875,1.615 5.333,1.813 0.458,0.198 10 false N155

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. 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 the 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 engine switch being turned from on (IG) 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.*

-

for initialization:

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>INITIALIZATION

-

for registration:

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>REGISTRATION



*: for 12 Pin Type



PROCEDURE

1.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
a.

Disconnect the Z30*1 or V32*2 door control receiver connector.

*1: for 12 Pin Type

*2: for 5 Pin Type



b.

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

B440804C46
3.198,0.438 3.604,0.677 0.406,0.24 4.521,0.438 4.927,0.677 0.406,0.24 4.115,2.583 3.979,2.583 3.979,2.583 3.813,1.448 false 4.896,2.594 4.76,2.594 4.76,2.594 3.906,1.438 false 5.688,2.25 5.552,2.25 5.552,2.25 5.208,1.448 false 3.24,0.479 3.698,0.677 0.458,0.198 10 false N155 4.563,0.479 5.021,0.677 0.458,0.198 10 false N156 4.958,2.51 5.573,2.708 0.615,0.198 10 false RCO 4.177,2.51 4.792,2.708 0.615,0.198 10 false RDAM 5.75,2.177 6.365,2.375 0.615,0.198 10 false E 0.292,0.125 0.75,0.323 0.458,0.198 10 false *a
*a Component with harness connected
(Certification ECU (Smart Key ECU Assembly)) 		- -


Standard Voltage:
Tester Connection Condition Specified Condition
N155-19 (RDAM) - N156-18 (E) Always 11 to 14 V
N155-18 (RCO) - N156-18 (E) Always Pulse generation at regular intervals
(Below 1 V ←→ 4.5 to 5.5 V)


Standard Resistance:
Tester Connection Condition Specified Condition
N156-18 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE DOOR CONTROL RECEIVER

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL RECEIVER (for Wagon)>REMOVAL


NG

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

Disconnect the N155 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the Z30*1 or V32*2 door control receiver connector.

*1: for 12 Pin Type

*2: for 5 Pin Type



c.

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

Standard Resistance:
for 12 Pin Type
Tester Connection Condition Specified Condition
N155-19 (RDAM) - Z30-2 (DATA) Always Below 1 Ω
N155-18 (RCO) - Z30-8 (+5) Always Below 1 Ω
Z30-12 (GND) - Body ground Always Below 1 Ω
Z30-2 (DATA) or N155-19 (RDAM) - Other terminals and body ground Always 10 kΩ or higher
Z30-8 (+5) or N155-18 (RCO) - Other terminals and body ground Always 10 kΩ or higher

for 5 Pin Type
Tester Connection Condition Specified Condition
N155-19 (RDAM) - V32-5 (DATA) Always Below 1 Ω
N155-18 (RCO) - V32-4 (+5) Always Below 1 Ω
V32-1 (GND) - Body ground Always Below 1 Ω
V32-5 (DATA) or N155-19 (RDAM) - Other terminals and body ground Always 10 kΩ or higher
V32-4 (+5) or N155-18 (RCO) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR