Lexus NX: Assist Map Number Mismatch (C1582)
DESCRIPTION
When an incorrect hybrid vehicle control ECU, an incorrect Skid control ECU or an incorrect main body ECU is installed after the assist map has been written in the power steering ECU assembly, then DTC C1582 is stored because the data does not match the vehicle specifications.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Return-to-normal Condition |
|---|---|---|---|---|---|
| C1582 | Assist Map Number Mismatch | Assist map number mismatch |
| Off | Assist map written |
CAUTION / NOTICE / HINT
NOTICE:
-
If the power steering ECU assembly has been replaced, perform assist map writing.
Click here
.gif)
-
If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
Click here
PROCEDURE
| 1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs.
Click here
| CAN communication system DTC is output. | .gif) | GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
.gif)
| 2. | CHECK RELATED PART |
(a) Check if any of the parts listed below have been replaced with an incorrect part in the past.
| Related Part | Hybrid vehicle control ECU |
| Main body ECU (multiplex network body ECU) | |
| Skid control ECU (brake booster with master cylinder assembly) |
NOTICE:
When removing a related part to check it, be sure to follow the appropriate procedures and precautions.
-
Hybrid vehicle control ECU
Click here
-
Main body ECU (multiplex network body ECU)
Click here
-
Skid control ECU (brake booster with master cylinder assembly)
Click here
HINT:
When DTC C1582 is output when parts have not been exchanged, replace the power steering ECU assembly as it may have an internal malfunction.
| All installed related parts have correct part number | | REPLACE POWER STEERING ECU ASSEMBLY |
| Part with incorrect part number is installed | | REPLACE RELATED PART WITH PART THAT HAS CORRECT PART NUMBER |
READ NEXT:
Lost Communication with Brake System Control Module (U0129,U0293,U1104)
DESCRIPTION The power steering ECU assembly receives signals from the hybrid vehicle control ECU, skid control ECU(brake booster with master cylinder assembly) and forward recognition camera via the C
Power Steering Warning Light Circuit
DESCRIPTION The power steering ECU is connected to the combination meter via CAN communication. If any of the following conditions are detected, the power steering warning light remains on.
The cir
SEE MORE:
Fail-safe Chart
FAIL-SAFE CHART AUTOMATIC HIGH BEAM SYSTEM (a) The main body ECU (multiplex network body ECU) operates in fail-safe mode if an abnormal condition such as those listed below has been detected. Item Abnormality Detection Condition Return Condition Warning (Multi-information Display) Airba
Illumination for Panel Switch does not Come on with Tail Switch ON
CAUTION / NOTICE / HINT NOTICE: When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
A communication malfunction DTC may be stored.
The radio receiver assembly may not
