RM3660EC _57 Power Source / Network _080743 NETWORKING _0598517 CAN COMMUNICATION SYSTEM(for Gasoline Model (NR Series)) J

NETWORKING  CAN COMMUNICATION SYSTEM(for Gasoline Model (NR Series))  Steering Angle Sensor Communication Stop Mode  


DESCRIPTION

Detection Item Symptom Trouble Area
Steering Angle Sensor Communication Stop Mode Any of the following conditions are met:
·

Communication stop for "Spiral cable (Steering Angle Sensor)" is indicated on the "Communication Bus Check" screen of the GTS.

Click here(Click here)

·

Communication stop history for "Spiral cable (Steering Angle Sensor)" is indicated on the "Communication Bus Check (Detail)" screen of the GTS. (The Lost Communication Time value for "Spiral cable (Steering Angle Sensor)" is 6 or more.)

Click here(Click here)

·

Communication system DTCs (DTCs that start with U) that correspond to "Steering Angle Sensor Communication Stop Mode" in "DTC Combination Table" are output.

Click here(Click here)


·

Steering sensor branch line or connector

·

Power source circuit of steering sensor

·

Steering sensor ground circuit

·

Steering sensor



WIRING DIAGRAM

C503915E01
0.292,1.74 0.75,1.938 0.458,0.198 10 false I96 0.542,1.74 2.917,2.073 2.375,0.333 10 false No. 5 CAN Junction Connector 5.365,0.667 5.823,0.865 0.458,0.198 10 false 3 5.375,1.26 5.833,1.458 0.458,0.198 10 false 8 5.635,1.385 6.156,1.635 0.521,0.25 10 false CANL 5.635,0.792 6.188,1.052 0.552,0.26 10 false CANH 5.656,2.281 6.115,2.479 0.458,0.198 10 false BAT 5.375,2.167 5.833,2.365 0.458,0.198 10 false 4 5.365,2.802 5.823,3 0.458,0.198 10 false 9 5.667,2.938 6.125,3.135 0.458,0.198 10 false IG1 5.667,3.948 6.125,4.146 0.458,0.198 10 false ESS 5.375,3.813 5.833,4.01 0.458,0.198 10 false 6 5.313,4.583 5.771,4.781 0.458,0.198 10 false I46 5.563,4.583 6.76,4.885 1.198,0.302 10 false Steering Sensor 3.823,2.125 5.063,2.49 1.24,0.365 10 false ECU-DCC NO. 1 2.229,2.25 3.271,2.563 1.042,0.313 10 false from Battery 1.031,2.948 3.375,3.208 2.344,0.26 10 false from Engine Stop and Start ECU 1.813,0.635 2.271,0.833 0.458,0.198 10 false 1 1.813,1.26 2.271,1.458 0.458,0.198 10 false 7

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 (NR Series))>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 (-) auxiliary battery terminal.

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

·

When disconnecting and reconnecting the battery.

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


·

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.

·

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 (STEERING SENSOR BRANCH LINE)
a.

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


b.

Disconnect the I46 steering sensor connector.


c.
C416675C05
0.188,0.938 0.604,1.219 0.417,0.281 1.875,1.917 1.708,1.917 1.708,1.917 1.708,1.417 true 1.542,0.208 1.708,0.208 1.708,0.208 1.708,1.042 true 0.125,0.135 0.438,0.333 0.313,0.198 10 false *a 0.323,1 0.635,1.198 0.313,0.198 10 false I46 1.104,0.156 1.698,0.438 0.594,0.281 10 false CANH 1.969,1.833 2.5,2.052 0.531,0.219 10 false CANL
*a Front view of wire harness connector
(to Steering Sensor)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I46-3 (CANH) - I46-8 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (STEERING SENSOR)

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C416675C06
0.188,0.938 0.604,1.219 0.417,0.281 1.208,1.917 1.375,1.917 1.375,1.917 1.375,1.417 true 2.052,1.917 1.885,1.917 1.885,1.917 1.885,1.417 true 2.042,0.208 1.875,0.208 1.875,0.208 1.875,1.042 true 0.125,0.135 0.438,0.333 0.313,0.198 10 false *a 0.323,1 0.635,1.198 0.313,0.198 10 false I46 2.135,0.156 2.729,0.438 0.594,0.281 10 false BAT 0.875,1.854 1.469,2.094 0.594,0.24 10 false ESS 2.146,1.833 2.677,2.052 0.531,0.219 10 false IG1
*a Front view of wire harness connector
(to Steering Sensor)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I46-6 (ESS) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω



b.

Reconnect the cable to the negative (-) battery terminal.


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I46-4 (BAT) - Body ground Always 11 to 14 V
I46-9 (IG1) - Body ground Ignition switch ON 11 to 14 V



Result:
Result
OK
NG



OK

NG