MAP MITSUBISHI LANCER EVOLUTION VI 1999 Workshop Manual

MPI – Troubleshooting13-7
FAIL-SAFE FUNCTION REFERENCE TABLE
When the main sensor malfunctions are detected by the diagnosis function, the vehicle is controlled
by means of the pre-set control logic to maintain safe conditions for driving.
Malfunctioning itemControl contents during malfunction
Air flow sensor1. Uses the throttle position sensor signal and engine speed signal (crank angle sensor
signal) to take reading of the basic injector drive time and basic ignition timing from
the pre-set mapping.
2. Fixes the ISC servo in the appointed position so idle control is not performed.
Intake air temperature
sensorControls as if the intake air temperature is 25C.
Throttle position
sensorNo increase in fuel injection amount during acceleration due to the throttle position sensor
signal.
Engine coolant
temperature sensor1. Controls as if the engine coolant temperature is 80C.
(This condition is maintained until the ignition switch is turned off even when the
sensor signal returns normal.)
2. Lets the fan motor (radiator and condenser) run at high speed.
Camshaft position
sensorInjects fuel to all cylinders simultaneously for 4 seconds.
(However, after the ignition switch is turned to ON, the No. 1 cylinder top dead centre is not
detected at all.)
Barometric pressure
sensorControls as if the barometric pressure is 101 kPa.
Detonation sensorSwitches the ignition timing from ignition timing for super petrol to ignition timing for standard
petrol.
Ignition coil, power
transistor unitCuts off the fuel supply to cylinders with an abnormal ignition.
Alternator FR terminalDoes not control the output of the alternator according to an electrical load. (works as a
normal alternator)

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 – Headlamp54-37
REMOVAL SERVICE POINT
AFRONT TURN-SIGNAL LAMP REMOVAL
1. Loosen the tapping screw connecting the headlamp to
the front turn-signal lamp. Put a screwdriver in the space
produced between the headlmap and the front turn-signal
lamp.
2. Prying the screwdriver in the direction shown, thrust the
front turn-signal lamp in the direction of the vehicle.
3. Unplug the connector and remove the front turn-signal
lamp.
INSTALLATION SERVICE POINT
AHEADLAMP INSTALLATION
Tighten attaching bolts and nuts in the order of A, B, C and
D.
INSPECTION
LIGHTING SWITCH, DIMMER/PASSING SWITCH
CONTINUITY CHECK
Switch positionTerminal No.
Connector AConnector B
56712346
LIGHTING
SWITCH
OFF
SWITCHTAIL
HEAD
DIMMER/
PASSING
LOWER
PASSING
SWITCHUPPERSWITCH
PASSING
Tapping screw
A
D B C
Connector A Connector B

– Floor and Roof WIRING HARNESS
CONFIGURATION DIAGRAMS
Connector
symbol
D
C-12
FLOOR AND ROOF
D-01 (20) Receiver

D-02 (2) Seat belt switch
D-03 (2) Front door switch (driver’s side)
D-04 (10) Body harness and fuel harness combina-
tion
D-05 (6) Body harness and rear door harness
(RH) combination
D-06 (18) Body harness and rear harness combina-
tion
D-07 (6) Sunroof switch
D-08 (2) Room lamp D-09 (1) Map lamp
D-10 (18) Sunroof ECU
D-11 (2-GR) Room lamp
D-12 (8) Sunroof motor
D-13 (3-B) Fuel gauge unit (sub)
D-14 (2-B) Rear speed sensor (LH)

D-16 (6) Body harness and rear door harness (LH)
combination
D-17 (2) Front door switch (passenger’s side)
D-18 (6) Fuel gauge unit (main)