Toyota 4Runner manuals

Toyota 4Runner: Terminals Of Ecu

TERMINALS OF ECU

1. CHECK POWER STEERING ECU ASSEMBLY


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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F41-3 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

F41-2 (CANL) - F41-1 (CANH)

W - L

CAN communication

Ignition switch off

54 to 69 Ω

F41-5 (IG) - F41-3 (GND)

G - W-B

IG power supply

Ignition switch ON

11 to 14 V

F41-7 (SOF+) - F41-8 (SOF-)

V - LG

Power steering solenoid valve signal

  • Engine idling
  • Steering wheel turned to right or left

Pulse generation

If the result is not as specified, the ECU may have a malfunction.

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Diagnosis System
DIAGNOSIS SYSTEM 1. CHECK DLC3 (a) Check the DLC3 (See page ). 2. FUNCTION OF POWER STEERING WARNING LIGHT (a) When a malfunction is detected in the power steering system, the power steering wa ...

Other materials about Toyota 4Runner:

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC (CHECK USING TECHSTREAM) (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Navigation System / Trouble Codes. (e) Chec ...

Operation Check
OPERATION CHECK NOTICE: Perform initialization before performing the operation check. 1. CHECK AUTO OPERATION HINT: When pressing the switch for 0.3 seconds or less, the roof glass moves but auto operation does not operate. (a) Turn the ignition switch ...

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