NO.2 TIGHT CORNER BRAKING
id030300800500
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2
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Tight corner braking
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DESCRIPTION
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Brakes seem to be applied during tight cornering while driving very slowly on paved road.
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POSSIBLECAUSE
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• Because the coupling component locks up easily (similar to direct 4WD), rotational difference between the front and rear wheels cannot be absorbed and brake-like phenomenon occurs.
• Due to the coupling component construction, slight tight corner braking effect occurs during tight cornering on a paved road. (4WD system is okay. Compare with another same model vehicle to determine malfunction.)
• Coupling component malfunction
• 4WD solenoid malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY DSC/RSC, PCM, TCM, INSTRUMENT CLUSTER AND 4WD SYSTEM DTCS
• Verify DSC/RSC, PCM, TCM, instrument cluster and 4WD system DTCs using the M-MDS.
• Are there any DTCs present?
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Yes
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Go to applicable DTC inspection.
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No
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Go to next step.
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2
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VERIFY TIRE AIR PRESSURE
• Inspect tire air pressure.
(See WHEEL AND TIRE SPECIFICATION.)
• Is it within specification?
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Yes
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Go to next step.
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No
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Adjust tire air pressure, then go to next step.
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3
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INSPECT ABS WHEEL-SPEED SENSOR
• Inspect ABS wheel-speed sensor.
• Is it normal?
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Yes
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Go to next step.
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No
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Repair or replace malfunctioning part.
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4
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COMPARE WITH SAME MODEL VEHICLE
• Perform simulation driving with another same model vehicle.
• Does malfunction recur on the same model vehicle?
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Yes
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4WD system is normal.
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No
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Go to next step.
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5
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PERFORM SIMULATION DRIVING WITH 4WD SOLENOID CONNECTOR DISCONNECTED
• Switch the ignition to OFF.
• Disconnect 4WD solenoid connector.
• Perform simulation driving. (Clear DTC after simulation driving.)
• Does malfunction recur?
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Yes
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Replace coupling component.
(See COUPLING COMPONENT ASSEMBLY.)
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No
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Go to next step.
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6
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INSPECT 4WD SOLENOID
• Inspect 4WD solenoid.
(See 4WD SOLENOID INSPECTION.)
• Is it normal?
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Yes
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Go to next step.
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No
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Replace coupling component.
(See COUPLING COMPONENT ASSEMBLY.)
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7
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INSPECT HARNESS BETWEEN 4WD SOLENOID AND 4WD CM
• Is it normal?
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Yes
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Replace 4WD CM.
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No
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Repair or replace malfunctioning parts.
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