INSPECTION
SHEMATIC DIAGRAM
SPECIFICATION
[THROTTLE POSITION SENSOR]

Throttle Angle(˚)

Output Voltage(V) [Vref = 5.0V]

TPS1

TPS2

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