Lexus ES: Steering Angle Sensor Power Source Voltage (C1432)
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) outputs this DTC when it receives a sensor power source malfunction signal from the steering angle sensor.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|---|
| C1432 | Steering Angle Sensor Power Source Voltage | 703 | Steering angle sensor power supply malfunction signal is received from steering angle sensor. |
| Does not come on | VSC DTC |
WIRING DIAGRAM
Refer to DTC C1434.
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CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
| (a) Remove the steering wheel and column cover. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.
OK:
The connector is securely connected.
(c) Disconnect the G62 steering angle sensor connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G62-4 (BAT) - Body ground | Always | 11 to 14 V |
| G62-9 (IG1) - Body ground | Power switch on (IG) | 11 to 14 V |
| NG |  | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
| 2. | CHECK HARNESS AND CONNECTOR (GND TERMINAL) |
| (a) Turn the power switch off. |
|
(b) Measure the resistance according to the value(s) in the table below.
NOTICE:
Before measuring the resistance of the steering angle sensor, turn the power switch off and leave the vehicle for 1 minute or more without operating the key or switches, or opening or closing the doors.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G62-6 (ESS) - Body ground | 1 minute after power switch off | Below 1 Ω |
| OK | | REPLACE STEERING ANGLE SENSOR |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) |
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