Lexus ES manuals

Lexus ES: Terminals Of Ecu

Lexus ES (XZ10) Service Manual / Steering / Steering Column / Power Tilt And Power Telescopic Steering Column System (for Hv Model) / Terminals Of Ecu

TERMINALS OF ECU

MULTIPLEX TILT AND TELESCOPIC ECU

*a

Component with harness connected

(Multiplex Tilt and Telescopic ECU)

-

-

(a) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Inspect the connectors from the back side while the connectors are connected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G63-1 (GND) - Body ground

W-B - Body ground

ECU ground

Always

Below 1 Ω

G63-2 (+B) - G63-1 (GND)

B - W-B

Motor power source

Power switch off

11 to 14 V

G63-3 (CANP) - G63-11 (CANN)

R - W

CAN communication

Power switch off

54 to 69 Ω

G63-4 (E1) - Body ground

BE - Body ground

Tilt sensor ground

Always

Below 1 Ω

G63-5 (VC) - G63-18 (MSW)

L - GR

Tilt and telescopic switch signal

Power switch on (IG)

4.9 to 5.1 V

G63-6 (TEM+) - G63-1 (GND)

B - W-B

Telescopic motor output
  • Power switch on (IG)
  • Steering column contracting

11 to 14 V

Telescopic motor not operating

Below 1 V

G63-7 (TIM+) - G63-1 (GND)

LG - W-B

Tilt motor output
  • Power switch on (IG)
  • Steering wheel tilting up

11 to 14 V

Tilt motor not operating

Below 1 V

G63-8 (GND2) - Body ground

BR - Body ground

ECU ground

Always

Below 1 Ω

G63-9 (ECUB) - G63-1 (GND)

BR - W-B

ECU power source

Power switch off

11 to 14 V

G63-10 (IG) - G63-1 (GND)

L - W-B

IG signal / IG power source

Power switch on (IG)

11 to 14 V

Power switch off

Below 1 V

G63-13 (VCI) - G63-4 (E1)

B - BE

Tilt sensor power source

Power switch on (IG)

8 to 14 V

G63-14 (VCE) - G63-17 (E2)

GR - LG

Telescopic sensor power source

Power switch on (IG)

8 to 14 V

G63-15 (TES) - G63-17 (E2)

R - LG

Telescopic sensor signal

Telescopic motor operating

Pulse generation

HI: 8 to 14 V

LOW: Below 1 V

G63-16 (TIS) - G63-4 (E1)

W - BE

Tilt sensor signal

Tilt motor operating

Pulse generation

HI: 8 to 14 V

LOW: Below 1 V

G63-17 (E2) - Body ground

LG - Body ground

Telescopic sensor ground

Always

Below 1 Ω

G63-19 (TEM-) - G63-1 (GND)

G - W-B

Telescopic motor output
  • Power switch on (IG)
  • Steering column extending

11 to 14 V

Telescopic motor not operating

Below 1 V

G63-20 (TIM-) - G63-1 (GND)

L - W-B

Tilt motor output
  • Power switch on (IG)
  • Steering wheel tilting down

11 to 14 V

Tilt motor not operating

Below 1 V

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