Lexus NX: Assist Map Number Mismatch (C1582)
DESCRIPTION
When an incorrect hybrid vehicle control ECU, incorrect skid control ECU or incorrect main body ECU is installed after the assist map has been written in the power steering ECU assembly, 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 | Note |
|---|---|---|---|---|---|---|
| C1582 | Assist Map Number Mismatch | Assist map number mismatch |
| Off | Power switch on (IG) again | - |
CAUTION / NOTICE / HINT
NOTICE:
-
If the power steering ECU assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
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:
Terminals Of Ecu
TERMINALS OF ECU OCCUPANT DETECTION ECU HINT: Since the occupant detection ECU uses waterproof connectors, the voltage and waveform cannot be inspected directly. Standard voltage and waveforms are indicated for reference only. Terminal No. (Symbol) Wiring Color Terminal Description Conditi
Open in Bus 2 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus wire and/or a central gateway ECU (network gateway ECU) branch wire when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Res
