2008 MITSUBISHI LANCER EVOLUTION X brake light

CONSTRUCTION DESCRIPTION
FOUR-WHEEL ANTI-LOCK BRAKE SYSTEM (4ABS)35B-9
STARTUP CHECK
.When the startup vehicle speed reaches approxi-
mately 10 km/h (6 mph), ABS-ECU performs the fol-
lowing checks.
1. Motor, solenoid valve check (Initial startup* only)
Turns ON the motor relay in ECU, and checks the
pump motor operation. At the same time,
ABS-ECU sequentially energizes each solenoid
valve in a very short period and checks the valve
operation.
NOTE: *: Initial startup indicates a first startup
after the system has started.
2. Wheel speed sensor check
ABS-ECU checks for any wheels that have not
received wheel speed sensor signal from the
startup.
CONSTANT CHECK
.ABS-ECU constantly checks the following items.
1. ABS-ECU
Performs self-diagnosis in ECU.
2. ECU power supply
Checks if ECU power supply voltage stays within
the operational range.
3. Wheel speed sensor
(1) Monitors the output voltage of the sensor
signal wiring harness and checks for abnormal
output voltage (open/short circuit).
(2) Checks for any wheels that do not send pulse
signal while the vehicle is in motion.
(3) Checks if wheel speed which is abnormally
higher or lower than the vehicle speed is input.
4. Pump motor, solenoid valve
Checks that the ABS-ECU output signal and the
operating conditions of the pump motor and
solenoid valve agree with each other.
CAN COMMUNICATION
ABS-ECU outputs the ABS warning light and the
EBD warning light
* illumination request signals to the
combination meter through CAN communication.
NOTE: *: The brake warning light is used as EBD
control warning light.
FAIL-SAFE FUNCTION
If any malfunction is detected by the self-diagnostic
function, ABS-ECU illuminates the ABS warning light
and brake warning light
*, and it disables ABS and
EBD control.
NOTE: *: The brake warning light is used as EBD
control warning light.
DTC
No.ItemCountermeasures for failure
EBD controlABS controlBrake
warning lightABS warning
light
C100AAbnormality in FL wheel speed
sensor circuitExecuted
(Prohibited
when two or
more wheels
are faulty.)ProhibitedExtinguished*2Illuminated*3
C1015Abnormality in FR wheel speed
sensor circuit
C1020Abnormality in RL wheel speed
sensor circuit
C102BAbnormality in RR wheel speed
sensor circuit
C1011Abnormality in FL wheel speed
sensor signalExecuted
(Prohibited
when two or
more wheels
are faulty.)ProhibitedExtinguished*2Illuminated*3
C101CAbnormality in FR wheel speed
sensor signal
C1027Abnormality in RL wheel speed
sensor signal
C1032Abnormality in RR wheel speed
sensor signal

CONSTRUCTION DESCRIPTION
FOUR-WHEEL ANTI-LOCK BRAKE SYSTEM (4ABS)35B-10
C1014Mutual monitoring of FL wheel
speed sensorExecuted
(Prohibited
when two or
more wheels
are faulty.)ProhibitedExtinguished*2Illuminated*3
C101FMutual monitoring of FR wheel
speed sensor
C102AMutual monitoring of RL wheel
speed sensor
C1035Mutual monitoring of RR wheel
speed sensor
C1041Abnormality in periodical signal
for FL wheel speed sensorExecuted
(Prohibited
when two or
more wheels
are faulty.)ProhibitedExtinguished*2Illuminated*3
C1042Abnormality in periodical signal
for FR wheel speed sensor
C1043Abnormality in periodical signal
for RL wheel speed sensor
C1044Abnormality in periodical signal
for RR wheel speed sensor
C1046FL wheel speed sensor control
phase time exceededExecuted
(Prohibited
when two or
more wheels
are faulty.)ProhibitedExtinguished*2Illuminated*3
C1047FR wheel speed sensor control
phase time exceeded
C1048RL wheel speed sensor control
phase time exceeded
C1049RR wheel speed sensor control
phase time exceeded
C104BAbnormality in FL wheel inlet
valve systemProhibitedProhibitedIlluminatesIlluminates
C104FAbnormality in FR wheel inlet
valve system
C1053Abnormality in RL wheel inlet
valve system
C1057Abnormality in RR wheel inlet
valve system
C105FAbnormality in FL wheel outlet
valve systemProhibitedProhibitedIlluminatesIlluminates
C1063Abnormality in FR wheel outlet
valve system
C1067Abnormality in RL wheel outlet
valve system
C105BAbnormality in RR wheel outlet
valve system
C2104Malfunction of valve power
supply circuitProhibitedProhibitedIlluminatesIlluminates
C1073Malfunction of motor drive
circuitExecutedProhibitedExtinguishedIlluminated*3
DTC
No.Item Countermeasures for failure
EBD control ABS control Brake
warning lightABS warning
light

CONSTRUCTION DESCRIPTION
FOUR-WHEEL ANTI-LOCK BRAKE SYSTEM (4ABS)35B-11
NOTE: .
•*1 This diagnostic trouble code is not set within
the vehicle speed of 20 km/h (12 mph) or less.
•*2 Turns ON when two or more wheels are faulty.
•*3 Stays ON until the vehicle speed reaches 10
km/h (6 mph) when the ignition switch is turned to
ON next time.
DIAGNOSTIC FUNCTION
ABS-ECU has the following functions for easier sys-
tem checks. The following items can be diagnosed
using scan tool.
•Diagnostic trouble code set
•Service data output
•Actuator test.
DIAGNOSTIC TROUBLE CODE SET
There are 43 diagnosis items. Since all the diagnos-
tic results are recorded in volatile memory
(EEPROM*), they are stored in the memory even
though the battery terminals are disconnected.
NOTE: .
•*EEPROM (Electrical Erasable & Programmable
ROM): Special type of memory that can be pro
-
grammed or erased electrically
•For each diagnosis item, refer to Service Manual.
.
SERVICE DATA OUTPUT
Using scan tool, the input data sent from the sensors
and switches can be read.
NOTE: For service data items, refer to Service Man-
ual.
.
C2116Abnormality in pump motor
power supply voltageExecutedProhibitedExtinguishedIlluminated*3
C1000Abnormality in stop light switch
circuitExecutedExecutedExtinguishedExtinguished
C2200Abnormality in ABS-ECUProhibitedProhibitedIlluminatesIlluminates
C2100Battery
voltage
problem (low
voltage)9.7 ± 0.3 V or
less
*1
ExecutedProhibitedExtinguishedIlluminates
8.0 ± 0.5 V or
less
*1
ProhibitedProhibitedIlluminatesIlluminates
C2101Battery
voltage
problem (high
voltage)18.0 ± 1.0 V or
moreProhibitedProhibitedIlluminatesIlluminates
C1395Brake fluid filling not completedExecutedExecutedExtinguishedFlashes (1 Hz)
C2203VIN not writtenExecutedExecutedExtinguishedIlluminates
C1608Implausible diagnosis dataExecutedExecutedExtinguishedExtinguished
U0001Bus offExecutedExecutedExtinguishedExtinguished
U0100Engine time-out errorExecutedExecutedExtinguishedExtinguished
U0141ETACS time-out errorExecutedExecutedExtinguishedExtinguished
U1415Variant coding not implementedExecutedProhibitedExtinguishedIlluminates
U1417Invalid variant coding value
(including wrong assembly)ExecutedProhibitedExtinguishedIlluminates
DTC
No.Item Countermeasures for failure
EBD control ABS control Brake
warning lightABS warning
light

CONSTRUCTION DESCRIPTION
FOUR-WHEEL ANTI-LOCK BRAKE SYSTEM (4ABS)35B-12
ACTUATOR TEST
Using scan tool, the actuators can be forcibly oper-
ated.
NOTE: .
•When ABS-ECU is disabled, the actuator test
cannot be performed.
•The actuator test can be performed only when
the vehicle is stationary. When the vehicle speed
reaches 10 km/h (6 mph), the forcible actuator
operation is disabled.
•During actuator test, the ABS warning light
flashes in 2Hz, and ABS control is prohibited.
•For the actuator test specification, refer to Ser-
vice Manual.