Mitsubishi MOTORS CARISMA 1996, Service Bulletin

Page: 77 / 232

8
Inspection Procedure 9
Auto-cruise control cannot be set Probable cause
The cause is probably that the fail-safe function is cancelling auto-cruise control. In this
case, the MUT-II can be used to check the trouble symptoms in each system by
inspecting the diagnosis codes. The MUT-II can also be used to check if the circuits of
each input switch are normal or not by inspecting the input switch codes
•
Malfunction of the auto-cruise control main switch
•
Malfunction of the auto-cruise control switch
•
Malfunction of the slip ring <Vehicles without SRS>
•
Malfunction of clock spring <Vehicles with SRS>
•
Malfunction of harnesses or connectors
•
Malfunction of the clutch switch <M/T>
•
Malfunction of the auto-cruise control-ECU
Can the auto-cruise control communicate with the MUT-II?
Check for each trouble symptom
Yes
(Refer to inspection procedure No. 2 on P.17-12.)
Is the diagnosis system diagnosis displayed on the MUT-II
normal?
Check for each trouble symptom
(Refer to inspection procedure No. 8 on P.17-16.)
No
Are any of MUT-II diagnosis code Nos. 11, 12, 14, 15, 16 or 17
Check for each diagnosis code. (Refer to P.17-7.)
output?
No
Is input switch inspection possible with the MUT-II?
Check for each trouble symptom
Yes
(Refer to inspection procedure No. 3 on P.17-13.)
Are either of MUT-II diagnosis code Nos. 23 or 26 output?
•
Stop lamp switch input circuit system [code No.23] inspection
No
(Refer to inspection procedure No. 14 on P.17-20.)
•
Clutch switch <M/T> or inhibitor switch <A/T> input circuit
system [code No. 26] inspection
Replace the auto-cruise control-ECU.
(Refer to inspection procedure No. 15 on P.17-20.)
ENGINE AND EMISSION CONTROL - Auto-cruise Control System
17-17
No
Yes
Yes
No
Yes
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