Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 377
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-27
STEP 14. Check intermediate connector C-06.
Q: Is any connector damaged?
YES : Repair or replace connector.
Refer to GROUP 00E, Harness Connector Inspection
.
Then check that diagnostic trouble code 14 is not
output.
NO : Check the harness wire between auto-cruise control-
ECU connector C-20 and stoplight switch connector
C-03 for open circuit or damage.
Then repair if necessary.
Then check that diagnostic trouble code 14 is not
output.
STEP 15. 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 14 is not
output.
NO : Check that diagnostic trouble code 14 is not output.
If diagnostic trouble code 14 is output, replace the
auto-cruise control-ECU. (Refer to
.)
Then check that diagnostic trouble code 14 is not
output.
AC003552 AB
CONNECTOR: C-06
AC001451
CONNECTOR: C-20
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-28
DTC15 : Auto-cruise Control Switch System
CIRCUIT OPERATION
This circuit judges the signals of each switch ("OFF,"
"SET," "RESUME," "CANCEL" and "MAIN") of the
auto-cruise control switch.
The auto-cruise control-ECU detects the state of the
auto-cruise control switch by sensing the voltages
shown below.
AC005111
Auto-cruise Control Switch System Circuit
AB
AC001451
CONNECTOR: C-20
AB
AC001467
CONNECTORS: C-82, C-84
C-84
C-82
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-29
•
When all switches are OFF, the ECU detects 3.5
−
5.0 volts.
•
When the "SET" switch is ON, the ECU detects
0.4
−
2.3 volts.
•
When the "RESUME" switch is ON, the ECU
detects 2.3
−
3.5 volts.
•
When the "CANCEL" switch is ON, the ECU
detects 0.4 volts or less.
•
When the main switch is ON, the ECU detects
7.0 volts.
DTC SET CONDITIONS
This code is output when the auto-cruise control
switch "RESUME" switch, "SET" switch or
"CANCEL" switch stays ON.
TROUBLESHOOTING HINTS
The most likely causes for this code to be set are:
•
Malfunction of the auto-cruise control switch.
•
Malfunction of the clock spring.
•
Damaged harness or connector.
•
Malfunction of the auto-cruise control-ECU
DIAGNOSIS
Required Special Tool:
•
MB991223: Harness Set
STEP 1. Check the 12-Volt supply circuit voltage at auto-
cruise control switch connector C-82.
(1) Disconnect auto-cruise control switch connector C-82 and
measure at the harness side.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 1 and ground.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage approximately battery positive voltage?
YES : Go to Step 5.
NO : Go to Step 2.
STEP 2. 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 3.
1
2
3
ACX02255AE
AUTO-CRUISE
CONTROL SWITCH
CONNECTOR: C-82
AC001468
CONNECTOR: C-82
AB
AUTO-CRUISE CONTROL
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ENGINE AND EMISSION CONTROL
17-30
STEP 3. 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 4.
STEP 4. Check 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 : Check the harness wire between multi-purpose fuse
No.13 and auto-cruise control switch connector C-82
for open circuit or damage.
Then repair if necessary.
Then check that diagnostic trouble code 15 is not
output.
STEP 5. Check the output circuit voltage at auto-cruise
control switch connector C-82 by backprobing.
(1) Do not disconnect auto-cruise control switch connector C-
82.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 2 and ground by
backprobing.
•
Voltage should be battery positive voltage.
(MAIN switch is at the "ON" position.)
(4) Measure the voltage between terminal 3 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 : Go to Step 8.
NO : Go to Step 6.
AC001467
CONNECTOR: C-84
AE
1 2
3
ACX01913 AE
C-82 CONNECTOR
HARNESS SIDE VIEW
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