MITSUBISHI ENDEAVOR 2004 Service Repair Manual

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 149: Identifying Output Voltage Grap
h
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Probable causes of low output voltage
ABS sensor pole piece-to-ABS rotor clearance too large Faulty ABS sensor
4. To observe the waveform with an oscilloscope:
Front Wheels: Shift into "D" range and drive the wheels. Rear Wheels: Turn the wheels manually at a constant speed
POINTS IN WAVEFORM MEASUREMENT Fig. 150: Identifying Points In Waveform Measurement

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA. NOTE: The output waveform is low when the wheel speed is low.
Similarly, it will be higher as the wheel speed increases.
Waveform may also be observed by driving the vehicle.
NOTE: The ABS sensor cable moves in relation to motion of the
front or rear suspension. Therefore, it is likely that it has an
open circuit only when driving on rough roads but it
functions normally when driving on smooth roads. It is
recommended to observe sensor output voltage waveform
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

HYDRAULIC UNIT CHECK Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
1. Jack up the vehicle. Then support the vehicle with rigid racks at the specified
jack-up points or place the front or rear wheels on the rollers of the braking
force tester.
2. Release the parking brake, and feel the drag force (drag torque) on each road
wheel. When using the braking force tester, take a reading of the brake drag
force.
3. Connect scan tool MB991958 to the data link connec
tor. also under special conditions, such as driving on a rough
road.
NOTE: For vehicles with ASC, refer to HYDRAULIC UNIT CHECK
.
CAUTION:
The roller of the braking force tester and the tire
should be dry during testing. When testing the front brakes, apply the parking
brake. When testing the rear brakes, stop the
front wheels with chocks.
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 151: Connecting Scan Tool MB991958 To Data Link Connector

Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

4. After checking that the selector lever is in "P" range, start the engine.
5. Select "Interactive Diagnosis" from the start-up screen.
6. Select "System Select."
7. Choose "ABS" from the "CHASSIS" tab.
8. Select "Actuator Test" from "ABS" screen
Fig. 152: Identifying Scan Tool Actuator Test

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
9. Choose an appropriate item for hydraulic unit check.
10. Turn the wheel by hand and check the change in braking force when the brake
pedal is depressed. When using the braking force tester, depress the brake
pedal until the braking force is at the following values, and check that the
brakin
g force chan
ges to the brake dra
g force readin
g taken in ste
p 2 when the
NOTE: The ABS system will switch to the scan tool mode and
the ABS warning light will illuminate.
NOTE: When the ABS has been interrupted by the fail-safe
function, scan tool MB991958 actuator testing cannot
be used.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

actuator is force-driven. The result should be as shown in the diagram above.
HYDRAULIC UNIT CHECK
11. If the result of inspection is abnormal, repair according to the Diagnosis Table
below.
Fig. 153: Diagnosis Table

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
12. After inspection, disconnect scan tool MB991958 immediately after turning the
ignition switch to the "LOCK" (OFF) position.
IN THE EVENT OF A DISCHARGED BATTERY
Front wheel
785 - 981 N (176 - 220 lb.)
Rear wheel
588 - 784 N (132 - 176 lb.)
WARNING:If the ABS is not operating, the vehicle will be
unstable during braking, Do not drive the vehicle

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

If the engine is started using a booster cable when the battery is completely flat, and
the vehicle is then driven without waiting for the battery to be recharged, the engine
may misfire and it may not be possible to drive the vehicle. This is because the ABS
consumes a large amount of current when carrying out its initial checks. If this
happens, recharge the battery fully. HYDRAULIC UNIT REMOVAL AND INSTALLATION
with the ABS-ECU connector disconnected or with
the ABS not operating for any other reason.
NOTE:
The ABS-ECU is integrated in the hydraulic unit. For vehicles with ASC, refer to HYDRAULIC UNIT
.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 154: Removing & Installing Hydraulic Unit

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
REMOVAL SERVICE POINTS << A>> ABS-ECU HARNESS CONNECTOR DISCONNECTION Move the lock lever of the ABS-ECU connector as shown in the illustration, and
then disconnect the harness connector.
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 155: Moving Lock Lever Of ABS
-ECU Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
<< B>>BRAKE MODULATOR HYDRAULIC UNIT (HYDRAULIC UNIT AND ABS-ECU) REMOVAL Remove the hydraulic unit as shown, taking care not to damage surrounding
com
ponents such as the flexible suction hose.WARNING:The hydraulic unit is heavy. Use care when
removing it.
CAUTION:
The hydraulic unit cannot be disassembled.
Never loosen its nuts or bolts. Do not drop or shock the hydraulic unit. Do not turn the hydraulic unit upside down or lay
it on its side.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 156: Removing Brake Modulator Hydraulic Unit (Hydraulic Unit And ABS
-ECU)

Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor