Toyota 4Runner manuals

Toyota 4Runner: 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 warning light in the combination meter comes on to inform the driver of the malfunction.

HINT:

When power assist is stopped or reduced, the power steering warning light comes on.

Power assist is stopped:

  • When a malfunction occurs in the power steering system (including lost CAN communication, etc.)
  • When the engine stalls (not a malfunction)

Power assist is reduced:

When a malfunction occurs in the power steering system (including lost CAN communication, etc.)

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 Col ...

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC (a) Turn the ignition switch off. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following m ...

Other materials about Toyota 4Runner:

Front Airbag Sensor RH Malfunction (B1610/13)
DESCRIPTION The front airbag sensor RH consists of the diagnostic circuit and frontal deceleration sensor, etc. If the center airbag sensor receives signals from the frontal deceleration sensor, it determines whether the SRS should be activated. DTC B16 ...

Evaporator Temperature Sensor Circuit (B1413/13)
DESCRIPTION The No. 1 cooler thermistor is installed on the evaporator in the air conditioning unit to detect the temperature of the cooled air that has passed through the evaporator and control the air conditioning. It sends appropriate signals to the No ...

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