RM38N0EC _57 Power Source / Network _111829 NETWORKING _0499998 CAN COMMUNICATION SYSTEM(for Gasoline Model) J

NETWORKING  CAN COMMUNICATION SYSTEM(for Gasoline Model)  Parking Assist ECU Communication Stop Mode  


DESCRIPTION

Detection Item Symptom Trouble Area
Parking Assist ECU Communication Stop Mode Communication stop for "Panoramic View Monitor / Circumference Monitoring Camera Control Module" is indicated on the "Communication Bus Check" screen of the GTS.
Click here(Click here)
·

Parking assist ECU branch line or connector

·

Power source circuit of parking assist ECU

·

Parking assist ECU ground circuit

·

Parking assist ECU



WIRING DIAGRAM

C472666E03
0.531,1.396 3.229,1.74 2.698,0.344 10 false No. 3 Global CAN Junction Connector 0.146,1.385 0.563,1.604 0.417,0.219 10 false E100 1.76,0.281 2.177,0.5 0.417,0.219 10 false 7 1.719,0.875 2.135,1.094 0.417,0.219 10 false 17 5.635,0.438 6.208,0.656 0.573,0.219 10 false CANH 5.646,1.021 6.219,1.24 0.573,0.219 10 false CANL 5.656,1.927 6.229,2.146 0.573,0.219 10 false +B 5.667,2.938 6.24,3.156 0.573,0.219 10 false IG 5.635,3.521 6.208,3.74 0.573,0.219 10 false ACC 5.635,3.99 6.208,4.208 0.573,0.219 10 false GND1 5.406,1.781 5.823,2 0.417,0.219 10 false 1 5.375,2.813 5.615,3.042 0.24,0.229 10 false 21 5.417,3.417 5.833,3.635 0.417,0.219 10 false 3 5.417,3.854 5.833,4.073 0.417,0.219 10 false 2 5.563,5.083 6.906,5.354 1.344,0.271 10 false Parking Assist ECU 5.229,5.083 5.698,5.333 0.469,0.25 10 false L21 1.083,1.927 3.208,2.229 2.125,0.302 10 false from Engine Stop and Start ECU 1.073,3.563 3.26,3.969 2.188,0.406 10 false from Engine Stop and Start ECU 1.073,2.948 3.24,3.281 2.167,0.333 10 false from Engine Stop and Start ECU 5.375,2.313 5.615,2.542 0.24,0.229 10 false 19 5.635,2.406 6.208,2.625 0.573,0.219 10 false +B2 5.646,4.396 6.219,4.615 0.573,0.219 10 false GND2 5.375,4.281 5.615,4.51 0.24,0.229 10 false 20 5.313,0.313 5.729,0.531 0.417,0.219 10 false 39 5.313,0.896 5.729,1.115 0.417,0.219 10 false 40

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


NOTICE:
·

Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.

·

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting and reconnecting the battery.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>WORK PROCEDURE

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART


·

Some parts must be initialized and set when replacing or removing and installing parts.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>WORK PROCEDURE

·

After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

·

After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>DIAGNOSIS SYSTEM

·

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



HINT:
·

Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.

·

When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.



PROCEDURE

1.CHECK FOR OPEN IN CAN BUS LINES (PARKING ASSIST ECU BRANCH LINE)
a.

Disconnect the cable from the negative (-) battery terminal.


b.

Disconnect the L21 parking assist ECU connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(L21)Location & Routing

Click Connector(L21)Instrument Panel>No. 2 Floor Wire>Parking Assist ECU

L21-39 (CANH) - L21-40 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

2.CHECK PARKING ASSIST ECU POWER SOURCE CIRCUIT

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (PARKING ASSIST ECU)

2.CHECK PARKING ASSIST ECU POWER SOURCE CIRCUIT
a.

Check the parking assist ECU power source circuit.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>PANORAMIC VIEW MONITOR SYSTEM>ECU Power Source Circuit


Result:
Result
OK
NG



OK

REPLACE PARKING ASSIST ECU

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>PARKING ASSIST ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)