Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [CRUISE CONTROL SYSTEM]
5
While driving at the set speed, the vehicle does not accelerate even when ACCEL switch is depressed. It does
not return to the previous set speed, even while driving faster than 40 km/h {25 MPH} and RESUME switch is
depressed after the set speed is canceled.
TROUBLESHOOTING HINTS
Customer misunderstood the system function
• Step 2
Malfunction of cruise control switch, cruise actuator and related parts
• Cruise actuator malfunction
• Cruise control switch malfunction
STEP INSPECTION
ACTION
1 Does RESUME only operate? Yes Go to next step. ACCEL only does not operate.
No Go to step 3. Both RESUME and ACCEL do not operate.
2 Did customer press RESUME/ACCEL switch
and SET/COAST switch at the same time?
Yes
System is normal. Explain the customer the following.
COAST has higher priority than others when SET/COAST
switches is pressed earlier or at the same time. Also, the
system will be canceled when RESUME/ACCEL switch is
pressed earlier.
No Reconfirm the symptoms of trouble.
3 Inspect cruise control switch.
c r 0 1 -2 0 CRUISE CONTROL SWITCH
INSPECTION
Is it okay?
Yes Replace cruise actuator, then go to next step.
No Replace cruise control switch, then go to next step.
4 Do RESUME and ACCEL operate normally? Yes Troubleshooting completed.
No Reconfirm the symptoms of trouble. If the trouble persists,
go back to step 1.
6
While driving at the set speed, the set speed is canceled although the cancel operation has not been
executed.
TROUBLESHOOTING HINTS
Customer misunderstood the system function
• Step 1 to 3
Malfunction of cruise actuator and related parts
• Cruise actuator malfunction
STEP
INSPECTION
ACTION
1
Did customer set the selector lever to N range
while driving the set speed?
Yes
System is normal. Explain to the custom er that system will
cancel the set speed when selector lever is on N range.
No Go to next step.
2 Did customer drive 15 km/h {10 MPH} slower
than set speed while driving on a slope?
Yes System is normal. Explain to the customer that system will
cancel the set speed when vehicle is driven 15 km/h {10
MPH} slower than set speed.
No Go to next step.
3 Did customer drive over a bump or did vehicle
incur a sudden impact such as from an
accident?
Yes System is normal. Explain to the customer that system will
cancel the set speed when the vehicle incurs a sudden
impact which is greater than a certain G force and the
sudden speed change is input to the cruise actuator.
No
Go to next step
4
Inspect that vehicle drives within the range of
40 km/h {25 MPH} to 160 km/h {100 MPH}
every time when SET switch is depressed.
Is it okay?
Yes
Replace cruise actuator, then go to next step.
No Perform the malfunction symptom No.1.
5 Inspect cruise control system operation.
Is it okay?
Yes Troubleshooting completed.
No Reconfirm the symptoms. If the trouble persists, go back
to step 1.
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