Toyota Yaris: Can Communication System / Steering Angle Sensor Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Steering Angle Sensor Communication Stop Mode | Communication stop for "Spiral cable (Steering Angle Sensor)" is indicated on the "Communication Bus Check" screen of the GTS. Click here
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Steering sensor branch line or connector
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Power source circuit of steering sensor
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Steering sensor ground circuit
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Steering sensor
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
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Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
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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 (-) auxiliary battery terminal.
(b) Disconnect the steering sensor connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | H39-3 (CANH) - H39-8 (CANL) | Cable disconnected from negative (-) auxiliary battery terminal | 54 to 69 Ω | |
| *a | Front view of wire harness connector (to Steering Sensor) | | |
NG |
| REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (STEERING SENSOR) |
OK |
| |
2. | CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | H39-6 (ESS) - Body ground | Cable disconnected from negative (-) auxiliary battery terminal | Below 1 Ω | |
| *a | Front view of wire harness connector (to Steering Sensor) | | |
(b) Reconnect the cable to the negative (-) auxiliary battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
H39-4 (BAT) - Body ground | Ignition switch off | 11 to 14 V |
H39-9 (IGR) - Body ground | Ignition switch ON | 11 to 14 V |
OK |
| REPLACE STEERING SENSOR |
NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
DESCRIPTION Detection Item Symptom Trouble Area Power Steering ECU Communication Stop Mode Communication stop for "Power Steering (EPS)" is indicated on the "Communication Bus Check" screen of the GTS...
DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the GTS...
Other information:
INSPECTION PROCEDURE 1. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH (a) Check the operation of the retractable mirror. NOTICE:
Disconnect and reconnect the auxiliary battery between each mirror position check.
The mirror position cannot be changed manually when the Auxiliary battery is connected...
PROBLEM SYMPTOMS TABLE Stop and Start System Symptom Suspected Area Link Stop and start system does not operate Refer to "Stop and Start System does not Operate"
Refer to "Stop and Start System does not Operate (Battery Condition)"
Restarting after a short period of time from an idling stop Refer to "Restarting after a Short Period of Time from an Idling Stop"
After engine stops due to stop and start system, engine does not restart Refer to "After Engine Stops due to Stop and Start System, Engine does not Restart"
Failure to restart from IG-ON engine stall Refer to "Failure to Restart from IG-ON Engine Stall"
Stop and start cancel indicator does not operate Combination meter assembly
Indicator circuit (CAN communication system)
Engine stop and start ECU
Stop and start indicator does not operate Combination meter assembly
Indicator circuit (CAN communication system)
Engine stop and start ECU
Stop and start control cannot be canceled ECAN terminal voltage
Stop and start cancel switch circuit
Multi-information display screen does not change after pressing steering pad switch assembly...
Categories
If a key is left in the vehicle, the functions of the key left in the vehicle
are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended
key in the vehicle.
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