Page 577 of 1463

M162 ENGINE CONTROLS 1F1-7
41
44
45
56
57
58
59
60
62
64
65
66
67
71
72
73
74
75
76
77
78
79
80
81
82
83
86
87
89 00
01
02
03
04
05
08
09
10
11
17
18
19
20
21
23
24
25
26
27
29
30
31
34
35
40
Failure
codeDescription
Coolant temperature sensor open
Coolant temperature sensor short
Coolant temperature sensor signal failure
Intake temperature sensor open
Intake temperature sensor short
Intake temperature sensor signal failure
Low battery voltage
HFM sensor signal failure
HFM sensor signal failure(Low)
HFM sensor signal failure(High)
Crankshaft position sensor signal failure
(no engine revolution signal)
Crankshaft position sensor signal failure
(rpm > max. value)
No.1 cylinder recognition failure
Crankshaft position sensor signal failure
(gab recognition failure)
Transmission coding failure
CAN communication failure : ASR
-
Transponder signal failure
CAN communication failure : TCU(A/T only)
CAN communication failure : TOD(E32 only)
-
-
CAN communication failure :
communication initialization failure
Fuel pump relay short(PWR)
Fuel pump relay open/short(GND)
Purge valve short
Failure
codeDescription
Purge valve open/short
Condenser fan(HI) relay short(PWR)
Condenser fan(HI) relay short(GND)
No.1 knock sensor signal failure
No.2 knock sensor signal failure
No.1 cylinder synchronization failure
-
-
Cluster S/W defectave
No ignition voltage output(No.1 ignition coil)
No ignition voltage output(No.2 ignition coil)
No ignition voltage output(No.3 ignition coil)
Crankshaft position sensor adaptation failure
Start signal recognition failure
No.1 injector short(PWR)
No.1 injector open/short(GND)
No.2 injector short(PWR)
No.2 injector open/short(GND)
No.3 injector short(PWR)
No.3 injector open/short(GND)
No.4 injector short(PWR)
No.4 injector open/short(GND)
High oxygen sensor voltage
Low oxygen sensor amplifying voltage
Oxygen sensor operating failure
Not excessive lean indication in oxygen
sensor(during coasting)
Oxygen sensor heater short(PWR)
Oxygen sensor heater open/short(GND)
Low oxygen sensor voltage
SELF DIAGNOSIS FAILURE CODE
Page 578 of 1463

1F1-8 M162 ENGINE CONTROLS
Cruise control acceleration failure
Cruise control deceleration failure
ECU failure(RAM)
ECU failure(EPROM)
Servo motor control output inter-ruption
memory failure
Servo motor open/short
Unprogramed ECU with Immobilizer
Uncoded ECU
ECU failure(NVRAM checksum failure)
ECU failure(coding ID checksum failure)
ECU failure(coding checksum failure)
ECU failure(programing checkusm failure)
ABD input signal short(power)
ABD input signal short(GND)
Low pedal valve sensor SP1 voltage
High pedal valve sensor SP1 voltage
Low pedal valve sensor SP2 voltage
High pedal valve sensor SP2 voltage
Different pedal valve sensor signal(1,2)
Pedal valve sensor 1,2 failure
HFM sensor, and throttle position sensor
failure
ECU failure(incompatible CPU)
ECU failure(CPUs communication failure)
ECU failure(CPU(2) configuration failure)
ECU failure(CPU(2) fault)
ECU failure(CPU run time failure between
CPUs)
No.5 injector short(PWR) 93
96
97
98
99
100
101
102
103
104
105
108
109
11 0
11 6
11 7
11 9
120
121
122
123
125
126
127
129
130
131
132Short learning control failure
Lambda control failure (rich stop)
Lambda control failure (lean stop)
Lambda idle adaptation failure(above rich
threshold)
Lambda idle adaptation failure(below lean
threshold)
learning control failure(rich, low load)
learning control failure(lean, low load)
learning control failure(rich, high load)
learning control failure(lean, high load)
Low throttle position sensor(IP1) voltage
High throttle position sensor(IP1) voltage
Low throttle position sensor(IP2) voltage
High throttle position sensor(IP2) voltage
Throttle actuator learning data fault
Throttle actuator learning control failure
Exceed fuel-cut safety time
Throttle valve return spring failure
Cruise control interruption memory failure
Throttle actuator failure
Pedal module position sensor signal failure
Different HFM signal with throttle potentiometer
Both throttle potentiometer(IP1&IP2) failure
IPS1 with IPS2
High permanent throttle signal
Message counter failure® cruise control ’OFF’
Vehicle speed signal failure
Vehicle speed signal failure
Cruise control lever failure133
134
136
137
139
140
141
142
143
144
145
146
150
151
160
161
162
163
164
167
185
186
187
188
189
190
192
Failure
codeDescriptionFailure
codeDescription
Page 581 of 1463
M162 ENGINE CONTROLS 1F1-11
FUEL INJECTION SYSTEM TEST (MSE3.62)
Failure
codeItem
Þ 1.0
Checking method
· Ignition:ON
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 08,
·Þ 1.1
·Þ 1.2
Þ 1.1
· Ignition:ON
10 211 -14V· ·· ·
· Ground
cable:
- Battery
ground· Ground cable
· Ground conditionDiagnosis
socket
69 2
Diagnosis
socket
Þ 1.2· Ignition:ON
11211 -14V· ·· ·
· Power
supply:
- terminal
30(TM.30)· Power supply cable
Diagnosis
socket
Þ 2.0· Ignition:ON
51111 -14V· ·· ·
· ECU:power
supply
- terminal
87(TM.87)08,·Þ 1.1
·Þ 2.1
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
· Engine:in Cranking
52· Cable
· Ignition switch 11 -14
(during engine
cranking)
· ·· ·
· Start signal:
- terminal
50(TM.50)
Page 583 of 1463

M162 ENGINE CONTROLS 1F1-13
Failure
codeItemChecking method Te s t
stepRequirement
Specified
valuePossible cause
Þ 6.1· Ignition:ON0.1 - 0.3A· Cable
· Fuel pump relay
· ECU
· ·· ·
· Fuel pump
relay:
- Current
consumption
00,
01,
02,
06,Þ 7.0· ·· ·
· Coolant
temperature
sensor:
- Voltage79 78· Ignition:ON°CV
20 3.57
80 1.22
100 0.78· Þ 7.1
· ECU
±5% Þ 6.0
· Ignition:ON
(Fuel pump relay will
operate for 1 - 2
seconds when the
ignition switch is
turned to "ON" after
stopping the engine)
· Engine:cranking 33 11
· Cable
· Fuel pump relay
· ·· ·
· Fuel pump
relay:
- Operation34,11 - 14V
(approx.1-
2sec.)
11 - 14V
(Cranking or
driving)
533
Þ 7.1· Ignition:OFF
(Remove the No.2
coupling from ECU) 79 78· Þ 7.2
· Cable
· ·· ·
· Coolant
temperature
sensor:
- Resistance
& cable°CW
20 2500
80 322
100 185
±5%
Þ 7.2· ·· ·
· Coolant
temperature
sensor:
- ResistanceCoolant temperature
sensor:
14
· Remove the
connector from
coolant temperature
sensor and measure
the resistance
between No.1 and
No.2 pin with
multimeter.· Þ refer to
specified
resistance
value of 7.1· Coolant
temperature
sensor 34,
35,
Page 599 of 1463
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
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
Page 601 of 1463
M162 ENGINE CONTROLS 1F1-31
FUEL PUMP TEST
Preparation
1 ECU
2 Test Coupling(No.1-60)
3 Test Coupling(No.61-120)
4 Stop Watch
5 Measuring Beaker
Connection of the Equipment
1. Turn the ignition switch to "OFF" position.
2. Connect the test box to the ECU.0 3 Test Box
04 ECU Test Cable
Tools Required
103 589 00 21 00 Pressure Tester
210 589 00 99 00 Adaptor Line
129 589 00 21 00 Test Box
210 589 08 63 00 Ecu Test Cable
Page 602 of 1463
1F1-32 M162 ENGINE CONTROLS
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible cause
1 liter of fuel
supply for
max. 35
seconds· ·· ·
· Fuel pump:
- Fuel supply
ratio· Ignition:ON
- Disconnect the fuel
return pipe and
connect the host to
beaker to collect the
supplied fuel Þ 1.0· Þ 2.0
· Check the fuel line
5 - 9 A
· ·· ·
· Fuel pump:
- Current
consumption· Ignition:ON
- Remove the fuel
relay from the fuse
and relay box in
luggage
compartment and
connect the
amperemeter
between No.1 and
No.3 in relay
box(fuel pump relay
removed position)
for measuring
current consumption Þ 2.0· Fuel pump
533
Multi tester(DC current)
31