Dtc P0505 Idle Control System Malfunction

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
2Gr-Fe Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505)

CHECK PCV HOSE (HOSE CONNECTIONS)

CHECK AIR INDUCTION SYSTEM

CHECK THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE)

DTC P0505 Idle Control System Malfunction


DESCRIPTION

The idle speed is controlled by the Electronic Throttle Control System (ETCS). The ETCS is comprised of: 1) one valve type throttle body; 2) the throttle actuator, which operates the throttle valve; 3) the throttle position sensor, which detects the opening angle of the throttle valve; 4) the accelerator pedal position sensor, which detects the accelerator pedal position; 5) the ECM, which controls the ETCS. Based on the target idle speed, the ECM controls the throttle actuator to provide the proper throttle valve opening angle.

DTC No.
DTC Detection Condition
Trouble Area
P0505
Idle speed continues to vary greatly from target speed (2 trip detection logic)
  1. ETCS
  2. Air induction system
  3. PCV hose connection
  4. ECM

INSPECTION PROCEDURE

HINT:
  1. The following conditions may also cause DTC P0505 to be set:
    1. The floor carpet overlapping onto the accelerator pedal, causing the accelerator pedal to be slightly depressed and therefore the throttle valve position to be slightly open.
    2. The accelerator pedal being not fully released.
  2. Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (RAV4_ACA30 RM000000PDS09FX.html).
1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result:

    Display (DTC output)
    		Proceed to
    P0505
    		A
    P0505 and other DTCs
    		B
    HINT:
    If any DTCs other than P0505 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (RAV4_ACA30 RM000002DSC00KX.html)
A


2.CHECK PCV HOSE (HOSE CONNECTIONS)
OK:
PCV hose is connected correctly and is not damaged.


NG
REPAIR OR REPLACE PCV HOSE
OK


3.CHECK AIR INDUCTION SYSTEM

  1. Check the air induction system for vacuum leakage.

    OK:
    No leakage from air induction system.


NG
REPAIR OR REPLACE AIR INDUCTION SYSTEM
OK


4.CHECK THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE)

  1. Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly.

    OK:
    Throttle valve is not contamainated with foreign objects and moves smoothly.


NG
REPLACE THROTTLE BODY (RAV4_ACA30 RM0000017UC00VX.html)
OK

REPLACE ECM (RAV4_ACA30 RM0000017UN01LX.html)