No.2 Tight Corner Braking - Mazda Mazda6 Workshop Manual Supplement

Diagnostic procedure
STEP
1 VERIFY DSC, PCM, TCM, AND 4WD SYSTEM
DTCs
• Verify DSC, PCM, TCM, and 4WD system
DTCs using WDS or equivalent.
• Are there any DTCs present?
2 VERIFY TIRE AIR PRESSURE
• Inspect tire air pressure.
• Is it within specification?
3 COMPARE WITH SAME MODEL TIRES
• Install tires of the same model.
• Perform simulation driving.
• Does malfunction recur?
4 COMPARE WITH SAME MODEL VEHICLE
• Install tires of malfunctioning vehicle to
another same model vehicle.
• Perform simulation driving.
• Does malfunction recur?
5 INSPECT 4WD SOLENOID
• Inspect 4WD solenoid.
(See M–66 4WD SOLENOID
• Is coupling component solenoid okay?
6 INSPECT WHEEL ALIGNMENT
• Inspect wheel alignment.
• Is it okay?
End Of Sie

NO.2 TIGHT CORNER BRAKING

2 Tight corner braking
[TROUBLESHOOTING HINTS]
• 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
Diagnostic procedure
STEP
1 VERIFY DSC, PCM, TCM, AND 4WD SYSTEM
DTCS
• Verify DSC, PCM, TCM, and 4WD system
DTCs using WDS or equivalent.
• Are there any DTCs present?
2 VERIFY TIRE AIR PRESSURE
• Inspect tire air pressure.
• Is it within specification?
3 INSPECT ABS WHEEL-SPEED SENSOR
• Inspect ABS wheel-speed sensor.
• Is it okay?
4 COMPARE WITH SAME MODEL VEHICLE
• Perform simulation driving with another
same model vehicle.
• Does malfunction recur on the same model
vehicle?
5 PERFORM SIMULATION DRIVING WITH 4WD
SOLENOID CONNECTOR DISCONNECTED
• Turn ignition key OFF.
• Disconnect 4WD solenoid connector.
• Perform simulation driving. (Clear DTC after
simulation driving.)
• Does malfunction recur?
TROUBLESHOOTING
INSPECTION
INSPECTION)
INSPECTION
Yes Go to applicable DTC inspection.
No Go to next step.
Yes Go to next step.
No Adjust tire air pressure, then go to next step.
Yes Go to next step.
No 4WD system is okay.
Yes 4WD system is okay.
No Go to next step.
Yes Inspect harness between 4WD solenoid and 4WD CM, then
go to next step.
No Replace coupling component.
Yes Replace coupling component.
No Inspect wheel alignment, and adjust it if necessary.
Yes Go to applicable DTC inspection.
No Go to next step.
Yes Go to next step.
No Adjust tire air pressure, then go to next step.
Yes Go to next step.
No Repair or replace malfunctioning part.
Yes 4WD system is okay.
No Go to next step.
Yes Replace coupling component.
No Go to next step.
ACTION
A6E638027100205
ACTION
M–83
M