Lexus NX: Terminals Of Ecu

TERMINALS OF ECU

MOBILE WIRELESS CHARGER CRADLE ASSEMBLY

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

*1: When the power switch is turned from off to on (ACC), the mobile wireless charger cradle assembly checks the charging stop signal for 1 second. If the charging stop signal is not 4 V or higher for 0.8 seconds or more within 1 second continuously, the mobile wireless charger cradle assembly determines that there is an open circuit in the charging stop signal circuit, blinks the indicator amber (pattern 1), and stops operation until the next time the power switch is turned on (ACC).

*2: For the certification ECU (smart key ECU assembly) charging stop signal reception conditions, .

K1-1 (PGND) - Body ground

BR - Body ground

Ground

Always

Below 1 Ω

K1-5 (ACC) - Body ground

B - Body ground

Power source (ACC)

Power switch on (ACC)

11 to 14 V

Power switch off

Below 1 V

K1-6 (B+) - Body ground

L - Body ground

Power source (+B)

Power switch off

11 to 14 V

K1-7 (DIS) - Body ground

W - Body ground

Smart access system with push-button start status signal

Within 1 second after turning power switch from off to on (ACC)*1

4.5 to 6.0 V

When charging

Below 1 V

When charging is temporarily stopped by charging stop signal from certification ECU (smart key ECU assembly)*2

4.5 to 6.0 V

K1-10 (TAIL) - Body ground

GR - Body ground

Illumination signal

Headlight dimmer switch assembly off

Below 1 V

Headlight dimmer switch assembly set to TAIL or HEAD

11 to 14 V

READ NEXT:

 Wireless Charger Power Source Circuit

DESCRIPTION This is the power source circuit to operate the mobile wireless charger cradle assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this syst

 Status Signal Circuit

DESCRIPTION This circuit sends a charging stop signal from the certification ECU (smart key ECU assembly) to the mobile wireless charger cradle assembly. Based on this signal, the wireless charging sy

 Pre-collision

SEE MORE:

 Steering Pad Switch Circuit

DESCRIPTION The forward recognition camera receives the LTA/LDA main switch on/off signal from the steering pad switch assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: During the steering pad switch assembly check, check the precautions for the airbag system since the horn button assembly i

 Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The following procedure is for the LH side. PROCEDURE 1. REMOVE FRONT DISC BRAKE PISTON (a) Place a piece of cloth between the front disc brake pistons and the disc brake cylinder assembly LH.

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