Toyota Yaris: Vehicle Stability Control System / Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open (C14FE14)
DESCRIPTION
This DTC is stored when the skid control ECU (brake actuator assembly) receives a power supply malfunction signal from the steering sensor.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| C14FE14 | Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open | When the +BS terminal voltage is from 9.5 to 17.4 V, a steering sensor power supply malfunction signal is received from the steering sensor. |
| Brake |
WIRING DIAGRAM
Refer to DTC C05262A.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CLEAR DTC |
(a) Clear the DTCs.
Chassis > Brake > Clear DTCs(b) Turn the ignition switch off.
|
| 2. | RECONFIRM DTC |
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
(b) Check if the same DTC is output.
Chassis > Brake > Trouble Codes| Result | Proceed to |
|---|---|
| DTC C14FE14 is not output. | A |
| DTC C14FE14 is output. | B |
| A |
 | USE SIMULATION METHOD TO CHECK |
|
| 3. | CHECK HARNESS AND CONNECTOR (IGR TERMINAL) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
| (b) Disconnect the H39 steering sensor connector. |
|
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the ignition switch to ON.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| H39-9 (IGR) - Body ground | Ignition switch ON | 11 to 14 V |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. | CHECK HARNESS AND CONNECTOR (BAT TERMINAL) |
| (a) Turn the ignition switch off. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| H39-4 (BAT) - Body ground | Always | 11 to 14 V |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 5. | CHECK HARNESS AND CONNECTOR (ESS TERMINAL) |
(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 | 1 minute or more after disconnecting the cable from the negative (-) auxiliary battery terminal | Below 1 Ω |
| OK |
 | REPLACE STEERING SENSOR |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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DESCRIPTION Refer to DTC C050C1F. Click here
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Keys
To use the auxiliary key, press the knob and pull out the auxiliary key from the smart key.
