INSPECTION
SHEMATIC DIAGRAM
SPECIFICATION
[THROTTLE POSITION SENSOR]

Throttle Angle(˚)

Output Voltage(V) [Vref = 5.0V]

TPS1

TPS2

0˚

0V

5.0V

10˚

0.5V

4.5V

20˚

0.9V

4.1V

30˚

1.4V

3.6V

40˚

1.8V

3.2V

50˚

2.3V

2.7V

60˚

2.7V

2.3V

70˚

3.2V

1.8V

80˚

3.6V

1.4V

90˚

4.1V

0.9V

100˚

4.5V

0.5V

110˚

5.0V

0V

Item

Sensor Resistance

TPS1

4.0 ~ 6.0㏀ at 20℃ (68℉)

TPS2

2.7 ~ 4.1㏀ at 20℃ (68℉)

[ETC MOTOR]

Item

Sensor Resistance

Coil Resistance (Ω)

1.275 ~ 1.725Ω at 20℃ (68℉)

CIRCUIT DIAGRAM
FAIL-SAFE MODE

Mode

Description

Symptom

Possible Cause

MODE 1

FORCED ENGINE SHUTDOWN

Engine stop

●

ETC system can't proceed reliable algorithm procedure

-

Fatal PCM internal programming error

-

Faulty intake system or throttle body

MODE 2

FORCED IDLE & POWER MANAGEMENT

Forced idle state controlled by fuel quantity regulation and ignition timing adjustment

●

ETC system can't control engine power via throttle device

●

Disabled throttle control or broken throttle position information

MODE 3

FORCED IDLE

Forced idle state and no response for accelerator activation

●

No information about the accelerator position

-

Malfuctioning APS 1 and 2, faulty A/D converter or internal controller

MODE 4

LIMIT PERFORMANCE & POWER MANAGEMENT

Engine power is determined by accelerator position and idle power requirement (Limited vehicle running)

●

ETC system can't securely control engine power

MODE 5

LIMIT PERFORMANCE

1.

Engine power varies with accelerator position, but driver perceives lack of engine power.

2.

MIL ON (Normal vehicle running)

●

Not reliable accelerator position signal or bad maximum power generation

-

Faulty APS, ignition voltage or internal controller

MODE 6

NORMAL

Normal

COMPONENT INSPECTION
1.

Connect a scan tool to the Diagnoisis Link Connector (DLC).

2.

Start engine and check output voltages of TPS 1 and 2 at C.T and W.O.T.

Condition

Output Voltage (V)

TPS 1

TPS 2

C.T

0.25 ~ 0.9V

Min. 4.0V

W.O.T

Min. 4.0V

0.25 ~ 0.9V

3.

Turn ignition switch OFF and disconnect the scantool from the DLC.

4.

Disconnect ETC module connector and measure resistance between ETC module terminals 4 and 1 (TPS 1).

5.

Measure resistance between ETC module terminals 7 and 6 (TPS 2).

Specification: Refer to SPECIFICATION.

ETC MOTOR
1.

Disconnect ETC module connector and measure resistance between ETC module terminals 5 and 8.

Specification: Refer to SPECIFICATION.

ETC SYSTEM INITIALIZATION
1.

Erase DTC(s) memorized in PCM with a scan tool.

2.

Turn ignition switch off and wait for about 10 seconds.

3.

Turn ignition switch on for more then 1 second. (At this time, the PCM records initial position of ETC motor on its EEPROM).

Яндекс.Метрика