Last Modified: 11-29-2007 1.6 U
Service Category: Steering Section: Steering Column
Model Year: 2008 Model: Sequoia Doc ID: RM000000XZ5013X
Title: STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: TERMINALS OF ECU (2008 Sequoia)

TERMINALS OF ECU

1. CHECK MULTIPLEX TILT AND TELESCOPIC ECU



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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A-2 (TEM+) - H57-11 (GND)

(Not available) - W-B

Telescopic motor output
  • Ignition switch ON
  • Telescopic steering contracts

11 to 14 V

Telescopic motor is not operating

Below 1 V

A-3 (VCE) - A-5 (E2)

(Not available)

Telescopic sensor power source

Ignition switch ON

8 to 16 V

A-4 (TES) - A-5 (E2)

(Not available)

Telescopic sensor signal

Telescopic motor is operating

Pulse generation

HI: 8 to 16 V

LOW: 0 V

A-5 (E2) - Body ground

(Not available) - Body ground

Telescopic sensor ground

Always

Below 1 V

A-6 (TEM-) - H57-11 (GND)

(Not available) - W-B

Telescopic motor output
  • Ignition switch ON
  • Telescopic steering extends

11 to 14 V

Telescopic motor is not operating

Below 1 V

H57-1 (TIM-) - H57-11 (GND)

R - W-B

Tilt motor output
  • Ignition switch ON
  • Steering tilts down

11 to 14 V

Tilt motor is not operating

Below 1 V

H57-2 (+B) - H57-11 (GND)

V - W-B

Motor power source

Always

11 to 14 V

H57-3 (MSW) - H57-11 (GND)

GR - W-B

Manual switch signal
  • Ignition switch ON
  • Tilt up by manual switch

1.67 to 2.13 V
  • Ignition switch ON
  • Tilt down by manual switch

0.54 to 0.74 V
  • Ignition switch ON
  • Telescopic contracted by manual switch

1.08 to 1.40 V
  • Ignition switch ON
  • Telescopic extended by manual switch

2.22 to 2.77 V

Manual switch is not operating

Below 0.2 V

H57-4 (VC) - H57-11 (GND)

Y - W-B

Manual switch power source

Ignition switch ON

4.9 to 5.1 V

H57-5 (CANH) - H57-11 (GND)

O - W-B

CAN communication

Ignition switch ON

Pulse generation

H57-6 (VCI) - H57-17 (E1)

SB - LG

Tilt sensor power source

Ignition switch ON

8 to 16 V

H57-7 (TIS) - H57-17 (E1)

G - LG

Tilt sensor signal

Tilt motor is operating

Pulse generation

HI: 8 to 16 V

LOW: 0 V

H57-8 (IG) - H57-11 (GND)

P - W-B

IG signal/IG power source

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

H57-9 (ECUB) - H57-11 (GND)

L - W-B

ECU power source

Always

11 to 14 V

H57-10 (TIM+) - H57-11 (GND)

B - W-B

Tilt motor output
  • Ignition switch ON
  • Steering tilts up

11 to 14 V

Tilt motor is not operating

Below 1 V

H57-11 (GND) - Body ground

W-B - Body ground

ECU ground

Always

Below 1 V

H57-14 (CANL) - H57-11 (GND)

W - W-B

CAN communication

Ignition switch ON

Pulse generation

H57-17 (E1) - Body ground

LG - Body ground

Tilt sensor ground

Always

Below 1 V