Auto-Cruise Control System - Diagnostic Display Patterns/Trouble Codes - Mitsubishi 1989-1993 GALANT Service Manual

AUTO-CRUISE CONTROL SYSTEM - Troubleshooting
DIAGNOSTIC DISPLAY PATTERNS AND TROUBLE CODES
Code Display patterns (output codes)
No. (use with voltmeter)
11
ov
ov
ov
ov
ov
1
ov
NOTE
normal. In either case, the system is normal if it can be reset. If there is an automatic cancellation not
intentionally made by the driver, however, excluding cancellations explicitly made by the cancel
procedure, there may be a temporary malfunction such as poor contact of a harness connector even
though the system can be reset, and for that reason it is necessary to check according to each
individual check chart that is applicable.
Display when vehicle speed is less than
the auto-cruise control system is set
ON
OFF
Probable cause
Abnormal condition of actuator drive system
<Electrical type>
Abnormal condition of auto-cruise vacuum
pump drive system <Vacuum type>
Abnormal condition of vehicle-speed signal No. 4
system
Low-speed limiter activation (The system is -
normal if it can be reset.) <Electrical type>
Automatic cancellation activated by vehicle -
speed reduction. (The system is normal if it
can be reset.) <Electrical type>
Control switch malfunction (when SET and No.2, 3
RESUME switches switched ON simul-
Cancel switch ON signal input (including input
wirings damage or disconnection, or problem
in circuitry within the control unit) <Electrical
Abnormal condition of auto-cruise control unit
7
Throttle position sensor malfunction
Closed throttle position switch malfunction
2.
Diagnostic trouble codes are displayed when, after cancel-
lation of the auto-cruise control system, the vehicle speed
decreases to less than approximately 20 km/h (12 mph),
and are erased by switching OFF the ignition switch or the
main switch. <Electrical type>
Diagnostic trouble codes are displayed when, after cancel-
lation of the auto-cruise control system, the vehicle speed
decreases to less than approximately 20 km/h (12 mph),
and are canceled by turning OFF the battery or canceling
the diagnostic trouble codes. (Refer to P.13-361.) <Va-
cuume type>
TSB Revision
Check chart No.
No. 6-1, 6-2. 6-3
No. 11