Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 378
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-31
STEP 6. Check auto-cruise control switch connector C-82.
Q: Is the connector damaged?
YES : Repair or replace connector.
Refer to GROUP 00E, Harness Connector Inspection
.
Then check that diagnostic trouble code 15 is not
output.
NO : Go to Step 7.
STEP 7. Check the auto-cruise control switch.
(1) Disconnect auto-cruise control switch.
(2) Measure the resistance between the terminals when each
of the "SET", "RESUME", "CANCEL" and MAIN switch is
pressed.
Q: Is the values measured correspond to those in the table
below?
YES : Check that diagnostic trouble code 15 is not output.
If diagnostic trouble code 15 is output, replace the
auto-cruise control-ECU. (Refer to
.)
Then check that diagnostic trouble code 15 is not
output.
NO : Replace the auto-cruise control switch. (Refer to
Then check that diagnostic trouble code 15 is not
output.
AC001468
CONNECTOR: C-82
AB
SWITCH
POSITION
RESISTANCE BETWEEN TERMINALS
MAIN switch
"OFF"
Terminal 1 and 2
Less than 2 ohm
MAIN switch
"ON"
Terminal 1 and 2
Approximately 3.9 k
Ω
"CANCEL"
switch "ON"
Terminal 2 and 3
Approximately 0
Ω
"RESUME"
switch "ON"
Terminal 2 and 3
Approximately 910
Ω
"SET" switch
"ON"
Terminal 2 and 3
Approximately 220
Ω
ACX01178 AB
OFF
OFF
OFF
OFF
ON
ON
ON
ON
CAN
MAIN
RES
SET
1
2
3
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-32
STEP 8. Check the output circuit voltage at auto-cruise
control-ECU connector C-20 by backprobing.
(1) Do not disconnect auto-cruise control-ECU connector C-20.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 12 and ground by
backprobing.
•
Voltage should be battery positive voltage.
(The MAIN switch is at the "ON" position.)
(4) Measure the voltage between terminal 9 and ground by
backprobing.
•
Voltage should be between 6.8 and 7.2 volts.
(MAIN switch is at the "ON" position.)
•
Voltage should be between 3.5 and 5.0 volts.
(All switches are at the "OFF" position.)
•
Voltage should be between 0.4 and 2.3 volts.
("SET" switch is at the "ON" position.)
•
Voltage should be between 2.3 and 3.5 volts.
("RESUME" switch is at the "ON" position.)
•
Voltage should be between 1 volt or less.
("CANCEL" switch is at the "ON" position.)
(5) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage within specifications?
YES : Check that diagnostic trouble code 15 is not output.
If diagnostic trouble code 15 is output, replace the
auto-cruise control-ECU. (Refer to
.)
Then check that diagnostic trouble code 15 is not
output.
NO : Go to Step 9.
STEP 9. Check auto-cruise control-ECU connector C-20.
Q: Is the connector damaged?
YES : Repair or replace connector.
Refer to GROUP 00E, Harness Connector Inspection
.
Then check that diagnostic trouble code 15 is not
output.
NO : Go to Step 10.
STEP 10. Check the clock spring.
Refer to GROUP 52B, Air Bag Modules and Clock Spring
Q: Is the clock spring damaged?
YES : Replace the clock spring.
Refer to GROUP 52B, Air Bag Modules and Clock
Spring
.
Then check that diagnostic trouble code 15 is not
output.
NO : Go to Step 11.
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
ACX01900AE
C-20 CONNECTOR
HARNESS SIDE VIEW
AC001451
CONNECTOR: C-20
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-33
STEP 11. Check auto-cruise control switch connector C-
82, clock spring connector C-84.
Q: Is any connector damaged?
YES : Repair or replace connector.
Refer to GROUP 00E, Harness Connector Inspection
.
Then check that diagnostic trouble code 15 is not
output.
NO : Go to Step 12.
STEP 12. Check the harness wire between auto-cruise
control switch connector C-82 and auto-cruise control-
ECU connector C-20.
Q: Is any harness wire between auto-cruise control switch
connector C-82 and auto-cruise control-ECU connector
C-20 damaged?
YES : Repair harness wire and then check that diagnostic
trouble code 15 is not output.
NO : Check that diagnostic trouble code 15 is not output.
If diagnostic trouble code 15 is output, replace the
auto-cruise control-ECU. (Refer to
.)
Then check that diagnostic trouble code 15 is not
output.
DTC 16: Auto-cruise Control-ECU
DTC SET CONDITIONS
This code is output when a problem is found on the
cancel status hold circuit or microcomputer operation
monitor circuit, which is incorporated in the auto-
cruise control-ECU.
TROUBLESHOOTING HINTS
Malfunction of the auto-cruise control-ECU.
DIAGNOSIS
Replace the auto-cruise control-ECU. (Refer to
Check that diagnostic trouble code 16 is not output.
AC001467
CONNECTORS: C-82, C-84
C-84
C-82
AB
AC001468
CONNECTOR: C-82
AB
AC001451
CONNECTOR: C-20
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-34
DTC 17: Throttle Position Sensor System
AC005112 AB
Throttle Position Sensor System Circuit
AC005105
CONNECTOR: B-07 <2.4L ENGINE>
AB
AC005106
CONNECTOR: B-07 <3.0L ENGINE>
AB
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