Toyota 4Runner manuals

Toyota 4Runner: Terminals Of Ecu



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

Terminal No. (Symbol)

Wiring Color

Terminal Description


Specified Condition

F41-3 (GND) - Body ground

W-B - Body ground



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:

Theft Deterrent System Presence Detection (B279C)
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TC and CG Terminal Circuit
DESCRIPTION DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are output by the blinking of the tire pressure warning light. WIRING DIAGRAM HINT: When each warning light blinks continuously, a ground short in the w ...

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