Page 591 of 1463
M162 ENGINE CONTROLS 1F1-21
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible cause
10 1211 - 14V
· ·· ·
· ECU:power
supply
- terminal
30(TM.30)
Þ 2.2· ·· ·
· Power
supply:
- terminal
87(TM.87)· Ignition:ON· Power supply cable
· OVPR
IGNITION SYSTEM TEST
08,· Þ 1.1
· Þ 1.2
Þ 1.1
· Ignition:ON
10 211 - 14V· ·· ·
· Ground
cable:
- Battery
ground· Ground cable
· Ground condition
(figure 1)Diagnosis
socket
69 2
Diagnosis
socket
Þ 1.2· Ignition:ON
11211 - 14V· ·· ·
· Power
supply:
- terminal
30(TM.30)· Power supply cable
· Fuse No.8Diagnosis
socket
Þ 2.0· Ignition:ON
51111 -14V· ·· ·
· ECU:power
supply
- terminal
87(TM.87)08,· Þ 2.1
· Þ 2.2
Þ 2.1
· Ignition:ON 11 - 14V· ·· ·
· Ground
cable
- Electronic
ground· Ground cable
52
Diagnosis
socket
111
Diagnosis
socket
· Ignition:OFF
11 - 14V
< 1V
Þ 3.0· Ignition:ON
6911 - 14 V· ·· ·
· Ignition
coil(T1/1)
- No.2,5
Cylinder64,· Cable
· Ignition coil(T1/1)
· Fuse No.17
· Engine:in cranking > 10 V
Page 592 of 1463

1F1-22 M162 ENGINE CONTROLS
Failure
codeItemChecking method Te s t
stepRequirementSpecified
valuePossible cause
Þ 6.1· ·· ·
· Crankshaft
position
sensor:
- Resistance· Ignition:OFF
- Disconnect the
coupling "NO.2"
from ECU· Cable
· Crankshaft position
sensor Þ 6.0
· Engine:in cranking
99 100Measure the
signal (refer to
figure 6)· ·· ·
· Crankshaft
position
sensor:
- Signal17,
18,
20,
67,· Þ 6.1
· Increament failure in
driven plate
> 5 V - 99 100
99 100
1050 - 1400W
Þ 7.0
· Engine:in cranking
104 106· Þ 7.1
· Cable
· Camshaft position
sensor Measure the
signal(refer to
figure 7)
· ·· ·
· Camshaft
position
sensor:
- Signal
Þ 4.0· Ignition:ON
69 7211 -14 V· ·· ·
· Ignition
coil(T1/2)
- No.3,4
Cylinder65,· Cable
· Ignition coil(T1/2)
· Fuse No.17
· Engine:in cranking > 10 V
· Engine:in idling
- Voltage
(alternating)
· Engine:in cranking
· Engine: in idling> 2.5 V -
19,
58,
Þ 5.0· Ignition:ON
69 7011 -14 V· ·· ·
· Ignition
coil(T1/3)
- No.1,6
Cylinder66,· Cable
· Ignition coil(T1/3)
· Fuse No.17
· Engine:in cranking > 10 V
17,
18,
20,
67,Voltage value
is increased
when engine
rpm is
increased
Page 593 of 1463

M162 ENGINE CONTROLS 1F1-23
Failure
codeItemChecking method Te s t
stepRequirementSpecified
valuePossible cause
106 11The value will
be changed in
1.2 - 1.7 V - Voltage
(alternating)
0.9 - 1.6 W 71 11
71 72
· Engine:in cranking
Þ 7.1
· Ignition:ON
- Remove the
connector from the
Camshaft position
sensor between
No.1 terminal and
No.3 terminal. 1311 -14 V· ·· ·
· Camshaft
position
sensor
(E23 only)
- Power
supply· Cable
· OVPR
· ·· ·
· Ignition
coil(T1/1)
- primary coil
voltage
(No.2 and 5
cylinder)· Engine:in cranking
(starter operating)
- Measuring range:
400 V
- Time range: 100 %
(using engine tester)
· Ignition:OFF200 - 350 V
Camshaft position
sensor
64,Þ 8.0· Þ 8.1
Þ 8.1
· ·· ·
· Connecting
resistance of
ignition coil
between T1/
1 and T1/2· Cable
· Ignition coil T1/1
· Ignition coil T1/2
72 11
· ·· ·
· Ignition
coil(T1/2)
- primary coil
voltage
(No.3 and 4
cylinder)· Engine:in cranking
(starter operating)
- Measuring range:
400 V
- Time range: 100 %
(using engine tester)200 - 350 V 65,Þ 9.0· Þ 9.1
0.9 - 1.6 W
72 71
· Ignition:OFFÞ 9.1· ·· ·
· Connecting
resistance of
ignition coil
between T1/
2 and T1/1· Cable
· Ignition coil T1/1
· Ignition coil T1/2 The
resistance of
ignition coil at
20°C is
approached
0.6W
The
resistance of
ignition coil at
20°C is
approached
0.6W
Page 594 of 1463

1F1-24 M162 ENGINE CONTROLS
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible cause
8 - 20 KV· ·· ·
· Ignition coil
(T1/1, T1/2,
T1/3)
- Secondary
ignition
voltage
> 10 MW
11 7 11 8· Engine:in cranking
- Select the ignition
coil in order of T1/1,
T1/2
- Measuring range:
20KV
- Time range:100 %
· Ignition:OFF
- Disconnect the
coupling "No.2" from
ECU.Þ 12.0· ·· ·
· Knock
sensor 1
- Resistance
(cylinder
No1, 2, 3)· Connecting
condition
· Cable
· ECU Þ 11.0 64,
65,
66,
Engine tester· Þ 11.1
· Ignition plug
· ECU
· High tension cable
6 - 8.5 KW
· ·· ·
· Ignition coil
(T1/1, T1/2,
T1/3)
- Secondary
coil
resistance· Remove the high
tension cable of T1/
1, T1/2, T1/3. Þ 11.1Ignition coil
(T1/1, T1/2, T1/3)· Ignition coil T1/1
· Ignition coil T1/2
· Ignition coil T1/3TM.4a
TM.4b
56,
11
· ·· ·
· Ignition
coil(T1/3)
- primary coil
voltage
(No.1 and 6
cylinder)· Engine:in cranking
(starter operating)
- Measuring range:
400 V
- Time range: 100 %200 - 350 V 66,Þ 10.0· Þ 10.1
0.9 - 1.6 W
70 72
· Ignition:OFFÞ 10.1· ·· ·
· Connecting
resistance of
ignition coil
between T1/
3 and T1/2· Cable
· Ignition coil T1/3
· Ignition coil T1/2
> 10 MW
11 4 11 5· Ignition:OFF
- Disconnect the
coupling "No.2" from
ECU.Þ 13.0· ·· ·
· Knock
sensor 2
- Resistance
(cylinder
No.4, 5, 6)· Connecting
condition
· Cable
· ECU 57,
The
resistance of
ignition coil at
20°C is
approached
0.6W
Page 596 of 1463

1F1-26 M162 ENGINE CONTROLS
IDLING CONTROL AND ELECTRONIC PEDAL SYSTEM TEST
Þ 2.1· Ignition:ON
50 512.25 - 2.75 V· ·· ·
· Pedal valve
sensor:
- Power
supply
(potentiometer 2)
· Cable
· ECU
Failure
codeItem
Þ 1.0
Checking method
· Ignition:ON
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with kick
down
Test
stepRequirement
Specified
valuePossible cause
31 47
0.3 - 0.7 V
· ·· ·
· Pedal valve
sensor:
- Signal
(potentiometer 1)
160,
161,
164,
167,
4.3 - 4.8 V
· Þ 1.1
· Cable
· Pedal valve sensor
Þ 1.1
· Ignition:ON
31 324.75 - 5.25 V· ·· ·
· Pedal valve
sensor:
- Power
supply
(potentiometer 1)
· Cable
· ECU
Þ 2.0
· Ignition:ON
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with kick
down 50 48
0.1 - 0.4 V
· ·· ·
· Pedal valve
sensor:
- Signal
(potentiometer 2)
162,
163,
164,
167,
2.1 - 2.5 V· Þ 2.1
· Cable
· Pedal valve sensor
Þ 3.0
· Engine:in idling
84 87
0.3 - 0.9 V· ·· ·
· Throttle
valve
actuator:
- Signal
Throttle valve
potentiometer 1104,
105,
108,
109,
116,
119,
185,
4.0 - 4.6 V· Þ 3.1
· Cable
· E-GAS actuator
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with kick
down
Page 597 of 1463
M162 ENGINE CONTROLS 1F1-27
Failure
codeItem
Checking method Test
stepRequirementSpecified
valuePossible cause
Þ 3.1· Ignition:ON
84 1124.75 - 5.25 V· ·· ·
· Throttle
valve
actuator:
- Power
supply(5V)· Cable
· ECU
Þ 4.0
· Ignition:ON
68 670.8 - 2.3 V
The value will
be changed in
1.0 - 2.5V.· ·· ·
· Throttle
valve
actuator:
- Signal
Throttle valve
actuator
motor voltage
supply104,
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
resistance68 67
Page 598 of 1463

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
codeItem
Þ 1.0
Checking method
· Engine:In idling
· Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch : ON
Te s t
stepRequirement
Specified
valuePossible 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
Page 600 of 1463

1F1-30 M162 ENGINE CONTROLS
Failure
codeItemChecking method Te s t
stepRequirementSpecified
valuePossible 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
testerÞ 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