Functional check

Total OBD & ECU Auto Diagnostics

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Monitor runs whenever following DTCs not present

None

Engine

Running

TYPICAL MALFUNCTION THRESHOLDS

Functional check:

Either of following conditions 1 or 2 met

-

1. Frequency that following conditions (a) and (b) met

5 times or more

(a) Engine RPM - target engine RPM (A/C OFF and NSW OFF)

Below -100 rpm, or 150 rpm or more

(b) ISC feedback correction amount

-0.17 L/sec or less, or 2.08 L/sec or more

2. Frequency that following conditions (c) and (d) met

Once

(c) Engine RPM - target engine RPM (A/C OFF and NSW OFF)

Below -100 rpm, or 150 rpm or more

(d) ISC airflow rate (learning value)

1.3 L/sec. or less, or 8.5 L/sec. or more

HINT:

• The following conditions may also cause DTC P0505 to be set:

(1) The floor carpet overlapping slightly 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.

• Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data, from the time the malfunction occurred.

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