Page 2778 of 3870
Fig. 34: Identifying Connector C
- 13
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between the remote controlled mirror (RH)
connector E-01 (terminal 1) and joint connector (2) C-104 (terminal 24) in
good condition?
YES: No action is necessary and testing is complete.
NO: Repair the wiring harness as necessary. And then check to see that
the heater function of the door mirror (RH) operates normally.
DOOR MIRROR REMOVAL AND INSTALLATION
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Door Mirror - Endeavor
Page 2820 of 3870

YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 2: DIFFICULT STEERING WHEEL OPERATION (INSUFFICIENT POWER ASSIST) DIAGNOSIS
STEP 1. Check the drive belt for damage.
Q: Is the drive belt damaged?
YES: Replace the drive belt. Then go to Step 9 .
NO: Go to Step 2.
STEP 2. Check the power steering oil pump drive belt tension.
Refer to 7. DRIVE BELTS (FOR GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
.
Q: Is the power steering oil pump drive belt tension within the standard
value?
YES: Go to Step 3.
NO: Adjust the tension. (Refer to 7. DRIVE BELTS (FOR
GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
). Then go to Step 9 .
STEP 3. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2826 of 3870
Q: Is there noise?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 5: SQUEALING NOISE DIAGNOSIS
STEP 1. Check the drive belt tension.
Refer to 7. DRIVE BELTS (FOR GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
.
Q: Is the drive belt tension incorrect?
YES: Adjust the belt tension. (Refer to 7. DRIVE BELTS (FOR
GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
). Then go to Step 3 .
NO: Go to Step 2.
STEP 2. Check for seizure in the oil pump.
Q: Is there seizure?
YES: Replace the part. Then go to Step 3.
NO: Go to Step 3.
STEP 3. Retest the system.
Confirm that no noise is generated.
Q: Is there noise?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 6: HISSING NOISE DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2834 of 3870

NO: The procedure is complete.
INSPECTION PROCEDURE 9: VIBRATION DIAGNOSIS
STEP 1. Check the tires for out-of-balance.
Q: Is the check result OK?
YES: Go to Step 2.
NO: Balance the tires (Refer to WHEEL BALANCE ACCURACY
).
Then go to Step 4 .
STEP 2. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
YES: Go to Step 3.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR
BLEEDING
). Then go to Step 4 .
NOTE: A slight vibration may be felt when the stationary steering
effort is made due to the condition of the road surface. To
check whether the vibration actually exists or not, test-drive
the vehicle on a dry concrete or asphalt surface. A very
slight amount of vibration is not a malfunction.
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2853 of 3870
Fig. 21: Checking Steering Wheel Return To Center
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DRIVE BELT TENSION CHECK Refer to 7. DRIVE BELTS (FOR GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
.
FLUID LEVEL CHECK
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2856 of 3870

Perform air bleeding procedure as necessary after replacing the steering gear, oil
pump or the steering fluid lines.
1. Raise and support the front wheels.
2. Disconnect the ignition coil connectors (Refer to IGNITION COIL
).
3. Turn the steering wheel all the way to the left and right five or six times while
using the starter motor to crank the engine intermittently several times (for 15
to 20 seconds).
4. Connect the ignition coil connectors (Refer to IGNITION COIL
).
5. Start the engine and allow to idle.
6. Turn the steering wheel to the left and right until there are no air bubbles in the
oil reservoir.
7. Confirm that the fluid is not milky, and that the level is between the high and
low dipstick marks.
8. Confirm that there is very little change in the fluid level when the steering
wheel is turned left and right.
9. Confirm that the change in the fluid level is no more than 5 mm (0.2 inch)
when the en
gine is sto
pped.
CAUTION: Perform air bleeding only while cranking the
engine. Do not perform air bleeding while the
en
gine is runnin
g. If
you do so, air in the fluid will
be increased and air bleeding will become more
difficult. During air bleeding, refill the steering
fluid so that the level never falls below the lower
mark on the dipstick.
CAUTION: If the fluid level rises suddenly after the engine is
stopped, the air has not been completely bled. If
air bleeding is not complete, there will be
abnormal noises from the pump and the flow-
control valve, and this condition could reduce
the life of the power steering components.
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2860 of 3870

5. If it is not within the standard value, replace the oil pump.
6. Check whether or not the hydraulic pressure is the standard value when no-
load conditions are created by fully opening the shut-off valve of the pressure
gauge.
Standard value: 0.8 - 1.0 MPa (116 - 145 psi)
7. If it is not within the standard value, the probable cause is a malfunction of the
oil line or steering gear, so check these parts and repair as necessary.
8. Turn the steering wheel all the way to the left or right; then check the retention
hydraulic pressure.
Standard value: 9.3 - 9.8 MPa (1,349 - 1,421 psi)
9. If not the standard value, overhaul or replace the steering gear. Remeasure
fluid pressure.
10. Remove special tools MB991548, MB990662 and MB991549, and then tighten
the pressure tube flare nut to the specified torque.
Tightening torque: 15 +/- 3 N.m (11 +/- 2 ft-lb)
11. Bleed the system (Refer to POWER STEERING SYSTEM AIR
BLEEDING
).
POWER STEERING PRESSURE SWITCH CHECK Required Special Tools:
MB990662: Power Steering Oil Pressure Gauge MB991548: Power Steering Oil Pressure Gauge Adapter (Pump Side) MB991549: Power Steering Oil Pressure Gauge Adapter (Hose Side)
1. Disconnect the pressure hose from the oil pump, and then connect the special
tools MB991548, MB990662 and MB991549.
2. Bleed air, and then turn the steering wheel several times while the vehicle is
not movin
g so that the tem
perature of the fluid rises to a
pproximatel
y 50 - 60°
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 3344 of 3870
Fig. 151: Checking G And Yaw Rate Sensor Connector C
-36
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check the connectors, for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES: Open or short circuit may be present in the G and yaw rate sensor
power supply lines. Repair the wiring harness between G and yaw rate
sensor connector C-36 terminal 1 and junction block connector C-215
terminal 2. Then go to Step 10.
NO: Repair or replace the damaged component(s).
STEP 6. Measure the resistance at the G and yaw rate sensor connector C-
36.
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor