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DTC P0607 CONTROL MODULE PERFORMANCE

DTC P0607 CONTROL MODULE PERFORMANCE

OUTLINE OF DIAGNOSIS

Judge NG when either the following is completed.


• When the read value of throttle position sensor 1 signal is mismatched between main CPU and sub CPU.

• When the read value of accelerator position sensor 1 signal is mismatched between main CPU and sub CPU.

• When the sub CPU operates abnormally.

• When the communication between main CPU and sub CPU is abnormal.

• When the input amplifier circuit of throttle position sensor 1 is abnormal.

• When the cruise control cannot be canceled correctly.

• When the signal of brake SW1 and 2 is mismatched.

• When the directed angle from main CPU is abnormal.


COMPONENT DESCRIPTION


(1)

Throttle position sensor

(6)

Accelerator pedal position sensor 2

(12)

Engine control module (ECM)

(2)

Throttle position sensor 1

(13)

Sub CPU

(3)

Throttle position sensor 2

(7)

Battery

(14)

Main CPU

(4)

Accelerator pedal position sensor

(8)

Stop light

(5)

Accelerator pedal position sensor 1

(9)

Brake switch

(10)

I/F circuit



ENABLE CONDITION

Secondary Parameters Enable Conditions
Ignition switch

ON

Ignition switch

ON

None

—

None

—

Throttle opening angle

Brake SW (with cruise control)

ON

None

—

Cruise control

OFF



GENERAL DRIVING CYCLE

(1) — (4): Always perform the diagnosis continuously.

(5): Always perform the diagnosis continuously on idling.

(6): Perform the diagnosis when the brake pedal is depressed.

(7): Always perform the diagnosis continuously.

(8): Always perform the diagnosis continuously when the cruise control pedal is not operating.

DIAGNOSTIC METHOD

Judge OK and clear NG when the malfunction criteria below are completed.

Judgment Value

Malfunction Criteria Threshold Value
(1) Difference of CPU on reading value of throttle position sensor signal

Within 0.12 V

(2) Difference of CPU on reading value of accelerator position sensor signal

Within 0.07 V

(3) WD pulse from sub CPU

WD pulse occur

(4) Communication between CPU

Possible to communicate

(5) Difference of signal on connection of amplifier

Within × 4±0.6 V

(6) Cruise control cancel signal at brake ON

Cruise control cancel signal ON

(7) Brake switch 1, 2 signal

SW 1 and 2 are matched

(8) Throttle opening angle directing value

Within the opening angle +3.4° which calculated from accelerator opening angle coefficient.



Time Needed for Diagnosis:


1. 250 milliseconds

2. 250 milliseconds

3. 200 milliseconds

4. 200 milliseconds

5. 24 milliseconds

6. 250 milliseconds

7. 200 milliseconds

8. 250 milliseconds


Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.

DTC CLEAR CONDITION


• When the OK idling cycle was completed 40 times in a row

• When “Clear Memory” was performed


MALFUNCTION INDICATOR LIGHT CLEAR CONDITION


• When the OK driving cycle was completed 3 times in a row

• When “Clear Memory” was performed


FAIL SAFE

Stop the current to electric control throttle motor. (Fix the throttle opening angle to 6°.)

ECM OPERATION AT DTC SETTING

Memorize the freeze frame data. (For test mode $02)