1999 MITSUBISHI LANCER EVOLUTION VI display

REAR AXLE – Troubleshooting 27-25
DATA LIST REFERENCE TABLE
The following items can be read by t01he MUT-

from the ECU input data.
Item No.
Check itemChecking requirementsNormal value
01Front-right wheel speedPerform a test run.Vehicle speeds
displayed on the
02Front-left wheel speed
displayed on the
speedometer and
MUTIIare identi03Rear-right wheel speedMUT-II are identi-
cal.
04Rear-left wheel speed
05Front-right wheel speed
(0.2 km/h)
06Front-left wheel speed (0.2
km/h)
07Rear-right wheel speed
(0.2 km/h)
08Rear-left wheel speed (0.2
km/h)
10Vehicle speed
11System voltageIgnition switch: ONBattery voltage
15TPS openingAccelerator pedal position/Igni-
tion switch: ON
Fully closed300 – 1000mV
tion switch: ON
Partially openGradually increases
from the above val-
ue.
Fully open4500 – 5000mV
19Longitudinal acceleration
sensor
Vehicle stands on level ground2.4 – 2.6V
sensor
Perform a test run.Reading fluctuates
up or down with 2.5V
as its center.
20Lateral acceleration sensorVehicle stands on level ground2.4 – 2.6V
Perform a test run.Reading fluctuates
up or down with 2.5V
as its center.
22Steering wheel operationSteering wheel turning direction
Ignition switch: ON90 deg. clock-
wiseR90 deg
90 deg counter-
clockwiseL90 deg
23Steering wheel turning
angular velocity
Steering wheel position
Ignition switch: ON
Not turned0 deg/s
angular velocityIgnition switch: ON
TurnedReading varies ac-
cording to turning
speeds.
45Idle position switchAccelerator pedal position
Ignition position: ON
Not depressedON
Ignition position: ON
DepressedOFF

SRS – Troubleshooting52B-6
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.
DIAGNOSIS FUNCTION
DIAGNOSIS CODES CHECK
Connect the MUT-II to the diagnosis connector (16-pin) under the instrument under cover, then check
diagnosis codes.
(Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.)
ERASING DIAGNOSIS CODES
Connect the MUT-II to the diagnosis connector and erase the diagnosis code.
Caution
Turn off the ignition switch before connecting or disconnecting the MUT-II.
INSPECTION CHART FOR DIAGNOSIS CODES
Inspect according to the inspection chart that is appropriate for the malfunction code.
Code No.Diagnosis itemReference page
14Analog G-sensor system in the SRS-ECU52B-7
15,16Safing G-sensor system in the SRS-ECU52B-7
21, 22, 61, 62Driver’s side air bag module (squib) system52B-8
24, 25, 64, 65Front passenger’s side air bag module (squib) system52B-9
31, 32SRS-ECU capacitor system52B-9
34*Connector lock system52B-10
35SRS-ECU (deployed air bag) system52B-10
41*IG1 (A) power circuit system52B-10
42*IG1 (B) power circuit system52B-11
43SRS warning lamp drive circuit
system
Lamp does not illuminate.*52B-12
systemLamp does not switch off.52B-12
44SRS warning lamp drive circuit system52B-13
45SRS-ECU non-volatile memory (EEPROM) and A/D converter system52B-13
51, 52Driver’s side air bag module (squib ignition drive circuit) system52B-13
54, 55Front passenger’s side air bag module (squib ignition drive circuit) system52B-13
NOTE
(1) *: If the vehicle condition returns to normal, the diagnosis code will be automatically erased, and the SRS warning
lamp will return to normal.
(2) If the vehicle has a discharged battery it will store the fault codes 41 or 42. When these diagnosis codes are
displayed, check the battery.

SRS – Post-collision Diagnosis52B-19
POST-COLLISION DIAGNOSIS
To inspect and service the SRS after a collision (whether
or not the air bags have deployed), perform the following
steps.
SRS-ECU MEMORY CHECK
1. Connect the MUT-II to the diagnosis connector (16-pin).
Caution
Make certain that the ignition switch is OFF when
the MUT-II is connected or disconnected.
2. Read (and write down) all displayed diagnosis codes.
(Refer to P.52B-6.)
NOTE
If the battery power supply has been disconnected or
disrupted by the collision, the MUT-II cannot communicate
with the SRS-ECU. Inspect and, if necessary, repair the
body wiring harness before proceeding further.
3. Read the data list (fault duration and how many times
memories are erased) using the MUT-II.
Data list
NoService Data ItemApplicability
92Number indicating houw often the memory is clearedMaximum time to be stored: 250
93How long a problem has lasted (How long it takes
from the occurrence of the problem till the first igniting
signal)Maximum time to be stored: 9,999 minutes
(approximately 7 days)
94How long a problem has lasted (How long it takes
from the first igniting signal till now)
4. Erase the diagnosis codes and after waiting 5 seconds
or more read (and write down) all displayed diagnosis
codes. (Refer to P.52B-6.)

CHASSIS ELECTRICAL – Ignition Switch and Immobilizer System54-13
IGNITION SWITCH AND IMMOBILIZER SYSTEM

SPECIAL TOOL
ToolNumberNameUse
MB991502MUT-II sub
assembly
Immobilizer system check
(Diagnosis display using the MUT-II)

Registration of the ID code
TROUBLESHOOTING
Caution
The ID code should always be re-registered when replacing the immobilizer-ECU.
STANDARD FLOW OF DIAGNOSIS TROUBLESHOOTING
Refer to GROUP 00 – How To Use Troubleshooting/Inspection Service Points.
DIAGNOSIS FUNCTION
DIAGNOSIS CODES CHECK
Refer to GROUP 00 – How To Use Troubleshooting/Inspection Service Points.
ERASING DIAGNOSIS CODES
Refer to GROUP 00 – How To Use Troubleshooting/Inspection Service Points.
Caution
The diagnosis codes which result from disconnecting the battery cables cannot be erased.
INSPECTION CHART FOR DIAGNOSIS CODES
Diagnosis code No.Inspection itemsReference
page
11Transponder communication system54-14
12*ID code are not the same or are not registered54-14
21Communication system between MUT-II and engine-ECU54-15
31EEPROM abnormality inside immobilizer-ECU54-15
NOTE
*: Diagnosis code No. 12 is not recorded.

CHASSIS ELECTRICAL – Ignition Switch and Immobilizer System54-21
ID CODE REGISTRATION METHOD
If using an ignition key that has just been newly purchased,
or if the immobilizer-ECU has been replaced, you will need
to register the ID codes for each ignition key being used
into the immobilizer-ECU. (A maximum of eight different ID
codes can be registered.)
Moreover, when the immobilizer-ECU has been replaced, you
will need to use the MUT-II to register the password that
the user specifies into the immobilizer-ECU. (Refer to the
MUT-II instruction manual for instructions on using the MUT-II.)
Caution
If registering of the ID codes is carried out all
previously-registered codes will be erased. Accordingly,
you should have ready all of the ignition keys that have
already been registered.
1. Connect the MUT-II to the diagnosis connector.
Caution
Turn the ignition switch off before connecting or
disconnecting the MUT-II.
2. Check that the diagnosis code No.54 is not displayed
for MPI system. If the code is displayed, carry out
troubleshooting before proceeding to the next step. (Refer
to GROUP 13A – Troubleshooting).
3. Use the ignition key that is to be registered to turn the
ignition switch to the ON position.
4. Use the MUT-II to register the ID code. If you are
registering two or more codes, use the next key to be
registered to turn the ignition switch to the ON position
without disconnecting the MUT-II.
5. Disconnect the MUT-II. This completes the registration
operation.
6. Check that the engine can be started by each one of
the ignition keys.
7. Check that the diagnosis code No.54 is not displayed
for MPI system. If the code is displayed, erase it. (Refer
to GROUP 13A – Troubleshooting).
MUT-II

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-41
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspection proce-
dure No.Reference page
Communication with the MUT-II is not possible.155-42
Air conditioner does not operate.255-43
A/C graphic display on control panel is blank.355-44
Temperature cannot be set.455-44
A/C outlet air temperature does not increase.555-44
A/C outlet air temperature does not decrease.655-44
Blower does not operate.755-45
Blower does not operate in HI mode.855-46
Blower air amount cannot be changed.955-47
Air outlet port cannot be changed.1055-47
Inside/outside air changeover is not possible.1155-48
Defroster function does not operate.1255-49
Condenser fan does not operate.1355-50
Rear defogger does not operate.1455-51
A/C-ECU power supply circuit check1555-52
A/C compressor control circuit check1655-53

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-44
Inspection procedure 3
A/C graphic display on control panel is blank.
Probable cause
The cause is probably a malfunction of the A/C-ECU power supply system
(earth).
Malfunction of connector or harness

Malfunction of A/C-ECU
Does the A/C operate?NOInspection procedure 15 (Refer to P.55-52.)
YES
Replace the A/C-ECU.
Inspection procedure 4
Temperature cannot be set.
Probable cause
The cause is probably a malfunction of the temperature setting signal input
system or output system.
Malfunction of connector or harness

Malfunction of A/C-ECU
Inspection procedure 15 (Refer to P.55-52.)
Inspection procedure 5
A/C outlet air temperature does not increase.
Probable cause
If the outlet air temperature does not increase when the temperature setting is
increased, the cause is probably a sensor malfunction or a problem with
operation of the air mix damper. The MUT-II can be used to check the
diagnosis codes in order to check the cause of the problem for each separate
system.
Malfunction of air mix damper potentiometer

Malfunction of air mix damper motor

Malfunction of air mix damper

Malfunction of connector or harness

Malfunction of thermostat

Malfunction of A/C-ECU
MUT-II Self-Diag code
Is any of the codes 11, 12, 31 and 41 output?YESINSPECTION CHART FOR DIAGNOSIS CODES (Refer to
P.55-34.)
NO
Thermostat checkNG
Replace
OK
Replace the A/C-ECU.
Inspection procedure 6
A/C outlet air temperature does not decrease.
Probable cause
If the outlet air temperature does not decrease when the temperature setting is
decreased, the cause is probably a problem in A/C system operation due to a
sensor error, or a problem with operation of the air mix damper. The MUT-II
can be used to check the diagnosis codes in order to check the cause of the
problem for each separate system.
Malfunction of outside air temperature sensor

Malfunction of air mix damper potentiometer

Malfunction of air mix damper motor

Malfunction of air thermo sensor

Malfunction of connector or harness

Malfunction of air mix damper

Malfunction of A/C-ECU
Does the A/C operate?NOInspection procedure 2 (Refer to P.55-43.)
YES
MUT-II Self-Diag code
Is any of the codes 11, 12, 13, 14, 21, 22, 31 and 41 output?YESINSPECTION CHART FOR DIAGNOSIS CODES (Refer to
P.55-34.)
NO
Replace the A/C-ECU.

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-54
DATA LIST REFERENCE TABLE
Check itemCheck conditionNormal condition
Inside air temperature sensor

MUT-II (11)Ignition switch: ONInside air temperature and temper-
ature displayed on the MUT-II are
identical.
Outside air temperature sen-
sor

MUT-II (13)Ignition switch: ONOutside air temperature and tem-
perature displayed on the MUT-II
are identical.
Heater water temperature
sensor

MUT-II (15)Ignition switch: ONHeater core surface temperature
and temperature displayed on the
MUT-II are identical.
Air thermo sensor

MUT-II (21)Ignition switch: ONEvaporator surface temperature
and temperature displayed on the
MUT-II are identical.
Photo sensor

MUT-II (25)Ignition switch: ONAmount of incident light is propor-
tional to voltage displayed on the
MUT-II.
Air mix damper potentiometer

MUTII(31)
Ignition switch: ONDamper positionOpening degree (%)

MUT-II (31)MAX. HOTApprox. 100
MAX. COOLApprox. 0
Air outlet changeover damper
potentiometer
Ignition switch: ONDamper positionOpening degree (%)
potentiometer

MUT-II (32)FACEApprox. 0
FOOTApprox. 50
FOOT/DEF.Approx. 75
DEF.Approx. 100
CHECK AT THE A/C-ECU TERMINALS
A/C-ECU
The parenthesized values in “Normal condition” column are for your reference.
Terminal
No.
Check itemCheck conditionNormal condition
1Front power transistor collector outputWhen blower switch is at OFFSystem voltage
When blower switch is at LOApprox. 7 V
When blower switch is at HIAlmost no voltage (0 V)
2Front power transistor base outputWhen blower switch is at OFF0 V
When blower switch is at LOApprox. 1.3 V
When blower switch is at HIApprox. 2.5 V
3BackupAt all timesSystem voltage