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2. Remove the battery from the vehicle.
3. Inspect battery carrier for damage caused by loss of acid from the battery. If
acid damage is present, it is necessary to clean area with a solution of clean
warm water and baking soda. Scrub area with a stiff bristle brush. Wipe clean
with a cloth moistened with ammonia or baking soda in water.
4. Clean the battery, especially the top with same solutions as described in step 3.
5. Inspect the battery case and cover for cracks. If cracks are present, battery must
be replaced.
6. Clean the battery post with a suitable battery post cleaning tool.
7. Clean the inside surfaces of the terminal clamps with a suitable battery
terminal cleaning tool. Replace damaged or frayed cables and broken terminal
clamps.
8. Install the battery in the vehicle.
9. Connect the positive and negative cables to the battery in the order of mention.
10. Tighten the clamp nut securely. BATTERY CHARGING Battery electrolyte temperature may temporarily be allowed to rise to 55°C (131°F).
Increase of electrolyte temperature above 55°C (131°F) is harmful to the battery,
causing deformation of battery cell, decrease in life of battery, etc.
case is cracked or leaking to protect hands from
the electrolyte. A suitable pair of rubber gloves
(not the household type) should be worn when
removing battery by hand.
WARNING:When batteries are being charged, an explosive gas
forms beneath the cover of each cell. Do not smoke
near batteries on charge or which have recently
been charged. Do not break live circuits at the
terminals of the batteries on charge. A spark will
occur where the live circuit is broken. Keep all open
flames away from the battery.
2004 Mitsubishi Endeavor Limited 2004 ELECTRICAL Battery - Endeavor
Page 698 of 3870
CHARGE RATE If the test indicator is dark, the battery should be charged as outlined below. When
the dot appears or when maximum charge shown below is reached, charging should
be stopped. CHARGE RATE CHART Fig. 2: Charging Rate Chart
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
BATTERY TEST BATTERY TESTING PROCEDURE
STEP 1. Check the battery cables.
Remove the negative cable, then the positive cable. Check for dirty or corroded
connections.
Q: Are the battery cables dirty or have corroded connections?
YES: Clean the battery cables. Then go to Step 2.
NO: Go to Step 2.
STEP 2. Check the battery post.
Check for loose battery post.
Q: Are the battery posts faulty?
YES: Replace the battery. Then go to Step 4 .
NO: Go to Step 3.
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STEP 3. Check the battery case and cover.
1. Remove the hold-downs and shields.
2. Check for broken/cracked case or cover.
Q: Is the battery case or cover faulty?
YES: Replace the battery. Then go to Step 4.
NO: Go to Step 4.
STEP 4. Check the open circuit voltage.
1. Turn headlights on for 15 seconds.
2. Turn headlights off for two minutes to allow battery positive voltage to
stabilize.
3. Disconnect the battery cables.
4. Read open circuit voltage.
Q: Is open circuit voltage 12.4 volts or more?
YES: Go to Step 5.
NO: Charge the battery at 5 amps for 10.4 hours. Then re-test.
STEP 5. Check the load test.
1. Connect a load tester to the battery.
2. Load the battery at the recommended discharge rate (See LOAD TEST
RATE CHART
) for 15 seconds.
3. Read voltage after 15 seconds, then remove load.
4. Compare the measured value with the minimum voltage (See LOAD
TEST CHART
).
Q: Is the voltage higher than minimum voltage?
YES: The battery is normal.
NO: Replace the battery. Then go to Step 4 .
LOAD TEST RATE CHART
2004 Mitsubishi Endeavor Limited 2004 ELECTRICAL Battery - Endeavor
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Fig. 3: Load Test Rate Chart
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
LOAD TEST CHART Fig. 4: Load Test Chart
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor Limited 2004 ELECTRICAL Battery - Endeavor
Page 701 of 3870

2004 BRAKES
Basic Brake System - Endeavor
GENERAL DESCRIPTION The brake system has been designed to give greater reliability and durability and to
provide excellent braking performance. FEATURES IMPROVED BRAKING PERFORMANCE 1. A 9+10 inch tandem brake booster has been adopted to provide sufficient
braking force in sudden braking range.
2. Front ventilated disc brakes have been adopted to provide stabled braking force
and improved braking feel.
3. Rear solid disc brakes have been adopted. IMPROVED STABILITY 1. A 4-wheel anti-lock braking system (4ABS) has been adopted to prevent
slipping caused by the vehicle wheels locking up, in order to maintain a stable
vehicle posture and steering performance.
2. An electronic brake-force distribution (EBD) makes it possible to maintain the
maximum amount of braking force even when the vehicle's load is unevenly
distributed. < Vehicles with ABS>
3. A rear wheel early lock-prevention proportioning valve has been adopted. <
Vehicles without ABS>
4. Front- and rear-wheel X-type brake line layout has been adopted.
5. Ventilated discs have been adopted for front brakes in order to improve anti-
fading performance. IMPROVED SERVICEABILITY 1. A diagnosis function has been adopted for the ABS system in order to make
inspection easier.
2. An outer disc separated hub and rotor has been adopted to make removal and
2004 Mitsubishi Endeavor LS
2004 BRAKES Basic Brake System - Endeavor
2004 Mitsubishi Endeavor LS
2004 BRAKES Basic Brake System - Endeavor
Page 702 of 3870
installation easier.
3. The master cylinder reservoir tank cap has been colored white to make
identification easier.
4. The ABS-ECU and hydraulic unit have been integrated to make them more
compact and light weight.
CONSTRUCTION DIAGRAM < VEHICLE WITH ABS>
Fig. 1: Identifying Vehicle With ABS Brake
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
< VEHICLE WITHOUT ABS>
2004 Mitsubishi Endeavor LS
2004 BRAKES Basic Brake System - Endeavor
Page 703 of 3870
Fig. 2: Identifying Vehicle Without ABS Brake
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
BASIC BRAKE SYSTEM DIAGNOSIS INTRODUCTION TO BASIC BRAKE SYSTEM DIAGNOSIS Hydraulic brakes are composed of the brake pedal, master cylinder, brake booster
and disc brakes. Malfunctions such as insufficient braking power or the generation
of noise may occur due to wear, damage or incorrect adjustment of these
components. BASIC BRAKE SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY Use these steps to plan your diagnostic strategy. If you follow them carefully, you
will be sure that you have exhausted most of the possible ways to find a basic brake
system fault.
1. Gather information from the customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by following the symptom chart.
4. Verif
y malfunction is eliminated.
2004 Mitsubishi Endeavor LS
2004 BRAKES Basic Brake System - Endeavor
Page 704 of 3870
SYMPTOM CHART Fig. 3: Symptom Chart
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
SYMPTOM PROCEDURES INSPECTION PROCEDURE 1: VEHICLE PULLS TO ONE SIDE WHEN BRAKES ARE APPLIED DIAGNOSIS
STEP 1. Check for oil, water, etc., on the pad contact surface of all brakes.
Q: Is oil, water, etc., on the pad contact surface?
YES: Replace the part and determine the source/cause of foreign material.
Then go to Step 5 .
NO: Go to Step 2.
STEP 2. Check disc brake pistons for smooth operation.
1. With engine not running, depress the brake pedal rapidly several times to
deplete booster vacuum reserves.
2. Test each disc brake assembly one at a time.
a. Remove the lower caliper bolt, then remove caliper from mount.
b. Have an assistant slowly depress the brake pedal. Confirm piston(s)
extend slowl
y and smoothl
y with no
jum
piness. Re
peat for each disc
2004 Mitsubishi Endeavor LS
2004 BRAKES Basic Brake System - Endeavor