Lexus NX: Torque Sensor Zero Point Adjustment Undone (C1515,C1516)
DESCRIPTION
These DTCs do not indicate a malfunction.
The power steering ECU assembly stores C1515 when it determines that torque sensor zero point calibration has not been performed.
The power steering ECU assembly stores C1516 when it determines that torque sensor zero point calibration has not completed.
| 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. | - | On | Zero point calibration occurs | There is no malfunction if this DTC is not output again after performing zero point calibration. |
| C1516 | Torque Sensor Zero Point Adjustment Incomplete | Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration. | - | On | Clear DTC | There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing zero point calibration. |
CAUTION / NOTICE / HINT
NOTICE:
-
If the electric power steering column sub-assembly has been replaced, perform torque sensor zero point calibration.
Click here
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-
If the power steering ECU assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
Click here
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Calibrate the torque sensor zero point (step 1).
Click here
| Tester Display |
|---|
| Torque Sensor Adjustment |
(b) Check for DTCs (step 2).
Click here
HINT:
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 |
| B | .gif) | END |
|
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| 2. | REPLACE POWER STEERING ECU ASSEMBLY |
(a) Replace the power steering ECU assembly.
Click here
|
| 3. | CHECK FOR DTC |
(a) Calibrate the torque sensor zero point (step 1).
Click here
| Tester Display |
|---|
| Torque Sensor Adjustment |
(b) Check for DTCs (step 2).
Click here
HINT:
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 | | REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY |
| B | | END |
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