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:

Installation
INSTALLATION PROCEDURE 1. CONNECT NO. 2 STEERING INTERMEDIATE SHAFT SUB-ASSEMBLY (a) Align the matchmarks on the No. 2 steering intermediate shaft and power steering gear. (b) Install the bolt. Torque: 36 N·m {367 kgf·cm, 27 ft·lbf} 2. INSTALL NO. ...

On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. CHECK REAR AIRBAG SENSOR LH (VEHICLE NOT INVOLVED IN COLLISION) (a) Perform ...

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