Daewoo Musso. Manual - part 147

M162 ENGINE CONTROLS  1F1-27

Failure

code

Item

Checking method

Test

step

Requirement

Specified

value

Possible cause

Þ 

3.1

·

 

Ignition:ON

84

112

4.75 - 5.25 V

·

·

·

·

·

 Throttle

valve

actuator:

- Power

supply(5V)

·

 Cable

·

 ECU

Þ 

4.0

·

 

Ignition:ON

68

67

0.8 - 2.3 V

The value will

be changed in

1.0 - 2.5V.

·

·

·

·

·

 Throttle

valve

actuator:

- Signal

Throttle valve

actuator

motor voltage

supply

104,

105,

108,

109,

116,

119,

185,

·

 ECU

·

 Cable

·

 E-GAS actuator

·

 Engine:in idling

- Coolant

temperature:

  >70 

°

C

84

85

4.0 - 4.6 V

Throttle valve

 potentiometer 2

0.3 - 0.9 V

·

 Position of

accelerator pedal:

- Closed throttle

position

- Full throttle with

kick down

Throttle valve

potentiometer

1+2

·

 

Ignition:OFF

< 10 

W

Throttle valve

actuator

motor

resistance

68

67

1F1-28  M162 ENGINE CONTROLS

AIR CONDITIONER CONTROL SYSTEM TEST

Þ 

2.0

·

 

Engine:In idling

·

 Air conditioner

switch : ON/OFF

Air conditioner

switch : OFF

Air conditioner

switch : ON

Coolant temperature:

above 105 

°

C

10

35

11 - 14 V

11 - 14 V

< 1 V

·

·

·

·

·

 Condenser

fan(HI)

control:

·

 Condenser fan

relay

·

 Fan motor

·

 ECU

Failure

code

Item

Þ 

1.0

Checking method

·

 

Engine:In idling

·

 Air conditioner

switch : ON/OFF

Air conditioner

switch : OFF

Air conditioner

switch : ON

Test

step

Requirement

Specified

value

Possible cause

10

44

< 1 V

·

·

·

·

·

 Air

conditioner

signal:

- Input signal

(input signal

from thermo

amplifier)

44,

45,

11 - 14 V

·

 

Þ 

5.1

·

 Cable

·

 Thermo amp

·

 Auto amp

·

 Dual pressure

switch

·

 Air conditioner

control panel

Þ 

1.1

·

 

Engine:In idling

·

 Air conditioner

switch : ON/OFF

Air conditioner

switch : OFF

Air conditioner

switch:ON

10

27

< 1 V

·

·

·

·

·

 Air

conditioner

compressor:

- Output

signal

11 - 14 V

·

 Thermo amp

·

 Auto amp

·

 Dual pressure

switch

·

 Air conditioner

control panel

·

 ECU

M162 ENGINE CONTROLS  1F1-29

FUEL PRESSURE AND INTERNAL LEAKAGE TEST

01 Pressure Tester
02 Pressure Hose
03 Measuring Beaker

Preparation

Connection of the Equipment

1. Turn the ignition switch to "OFF" position.

2. Remove the air cleaner cross pipe.

3. Remove the cap on fuel pressure test plug and connect the

pressure hose and pressure tester.

4. Prepare the beaker for measuring the amount of fuel.

Tools Required

103 589 00 21 00  Pressure Tester

119 589 04 63 00  Pressure Hose

1F1-30  M162 ENGINE CONTROLS

Failure

code

Item

Checking method

Test

step

Requirement

Specified

value

Possible cause

3.2 - 3.6 bar

·

·

·

·

·

 Fuel

pressure:in

idling speed

- When the

vacuum is

applied

·

 Engine:in idling

- Close the valve

screw on pressure

tester

Þ 

1.0

Connect the fuel

pressure test plug to

the pressure tester

(refer to the flgure on

previous page).

·

 

Þ 

Fuel pump test

·

 Fuel pressure

regulator

3.7 - 4.2 bar

·

·

·

·

·

 Fuel

pressure:in

idling speed

- When the

vacuum is

not applied

·

 Engine:in idling

- Close the valve

screw on pressure

tester

Þ 

2.0

Connect the fuel

pressure test plug to

the pressure tester

(refer to the flgure on

previous page).

·

 Fuel pressure

regulator

> 3.0 bar

·

·

·

·

·

 Fuel system

internal

leakage:

·

 Engine:stop

Þ 

3.0

Connect the fuel

pressure test plug to

the pressure tester

(refer to the flgure on

previous page).

·

 The pressure drops

rapidly:non-return

valve in fuel pump

> 2.5 bar

·

 After 30 minutes from

engine stop

·

 The pressure drops

slowly:

- Injector test

- Fuel pressure

regulator

- O-ring