Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Torque Sensor Zero Point Adjustment Undone (C1515)
DESCRIPTION
This DTC does not indicate a malfunction. The power steering ECU assembly stores this DTC when it determines that torque sensor zero point calibration has not been 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. | - | 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 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 |
Torque Sensor1 (C1511-C1514,C1517)
DESCRIPTION The torque sensor converts the rotational torque received from the steering wheel into electric signals and sends them to the power steering ECU assembly. DTC No. Detection Item DTC ...
Torque Sensor Zero Point Adjustment Incomplete (C1516)
DESCRIPTION This DTC does not indicate a malfunction. The power steering ECU assembly stores this DTC when it determines that torque sensor zero point calibration has not completed. DTC No. Detec ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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