Lexus ES: Torque Sensor Zero Point Adjustment Undone (C1515)
DESCRIPTION
This DTC does not indicate a malfunction. The power steering ECU (rack and pinion power steering gear assembly) stores this DTC when it determines that torque sensor zero point calibration has not been performed.
When the IG terminal voltage is below 8 V, torque sensor zero point calibration cannot be performed.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Return-to-normal Condition | Note |
|---|---|---|---|---|---|---|
| C1515 | Torque Sensor Zero Point Adjustment Undone | This DTC is stored when torque sensor zero point calibration has not been performed. | Torque sensor zero point calibration | EPS warning light: Comes on | Zero point calibration is performed or the power switch is turned on (IG) again | There is no malfunction if this DTC is not output again after performing zero point calibration. |
CAUTION / NOTICE / HINT
NOTICE:
If the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
Click here .gif)
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Calibrate the torque sensor zero point. (Step 1)
Chassis > EMPS > Utility| Tester Display |
|---|
| Torque Sensor Adjustment |
(b) Check for DTCs. (Step 2)
Chassis > EMPS > Trouble CodesHINT:
If DTCs are output, perform steps (1) and (2) two more times.
| Result | Proceed to |
|---|---|
| DTCs are still output after performing steering zero point calibration 3 times. | A |
| Normal system code is output. | B |
| A | .gif) | REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY |
| B | | END |
READ NEXT:
Torque Sensor Zero Point Adjustment Incomplete (C1516)
DESCRIPTION This DTC does not indicate a malfunction. The power steering ECU (rack and pinion power steering gear assembly) stores this DTC when it determines that torque sensor zero point calibration
Vehicle Speed Signal (C1541)
DESCRIPTION The power steering ECU (rack and pinion power steering gear assembly) receives vehicle speed signals from the skid control ECU (brake booster with master cylinder assembly) via CAN communi
IG Power Supply Voltage (C1551)
DESCRIPTION When a malfunction is detected in the power source circuit, the fail-safe function suspends power assist. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Ind
SEE MORE:
Rear Power Window RH Auto Up / Down Function does not Operate with Rear Power Window Switch RH
DESCRIPTION If the manual up and down functions operate normally but the auto up and down functions do not, the power window control system may be in fail-safe mode. If power window initialization has not been performed, the auto up and down functions will not operate. Click here WIRING DIAGRAM C
Components
COMPONENTS ILLUSTRATION *1 COOL AIR INTAKE DUCT SEAL *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY N*m (kgf*cm, ft.*lbf): Specified torque - -
