The cruise control
system keeps the vehicle running at a fixed speed until a signal canceling
this fixed speed is received. When the main switch is turned on with
vehicle in the running mode, the battery voltage is applied to the PCM.
When a signal from the control switch is input to the PCM while the
vehicle is in state,the PCM controls the ETS motor to make a car go at a
steady speed you want. Also, while the system is operating, "CRUISE"
indicator lamp in the meter assembly lights up.
If the RESUME swich
signal is switching too frequently or stuck for too long, PCM sets
P0567.
Item
|
Detecting
Condition
|
Possible Cause
|
DTC
Strategy
|
| •
|
Monitors the switch is switching too
frequently or stuck for too
long. | |
|
Enable
Conditions
|
| •
|
Cruise control system type is
learned | |
Threshold
Value
|
| •
|
Input switch signal is switching too
frequently or stuck | |
Diagnosis
Time
|
| •
|
Switching: more than 1 second failure
for 300 seconds test |
| •
|
Stuck: more than 75 seconds failure for
300 seconds test | |
MIL On
Condition
|
|
Item
|
Resistance(Ω)
|
ON/OFF
switch
|
3.9 kΩ ±
5％
|
SET
switch
|
220 Ω ±
5%
|
RESUME
switch
|
910 Ω ±
5%
|
CANCEL
switch
|
0 Ω ±
5%
|
| 1. |
Connect scantool to Data Link
Connector(DLC). |
| 3. |
Select "DTC" button, and then Press "DTC
Status" to check DTC's information from the DTCs
menu. |
| 4. |
Read "DTC Status" parameter.
|
| 5. |
Is parameter displayed "Present
fault"?
|
|
▶ Go to
"Terminal and Connector inspection"
procedure.
|
|
|
▶ Fault is
intermittent caused by poor contact in the sensor's and/ or
PCM's connector or was repaired and PCM memory was not
cleared.
Thoroughly check
connectors for looseness, poor connection, ending, corrosion,
contamination, deterioration, or damage. Repair or eplace as
necessary and go to "Verification of vehicle Repair"
procedure.
|
|
| Terminal And Connector
Inspection |
| 1. |
Many malfunctions in the electrical system are
caused by poor harness and terminals.
Faults can also be caused by interference from
other electrical systems, and mechanical or chemical
damage. |
| 2. |
Thoroughly check connectors for looseness,
poor connection, bending, corrosion, contamination, deterioration,
or damage. |
| 3. |
Has a problem been found?
|
|
▶ Repair as
necessary and go to "Verification of Vehicle Repair" procedure
.
|
|
|
▶ Go to "
Component Inspection "
procedure.
|
|
Check Auto Cruise Switch
| 1. |
IG "OFF" and disconnect Cruise switch
connector. |
| 2. |
Measure resistance between signal and ground
terminals of Cruise switch connector with 'RESUME' switch
depressed.(Component side)
Specification :
Item
|
Resistance(Ω)
|
RESUME
switch
|
910 Ω
± 5% between signal and ground
terminals
|
|
| 3. |
Is the measured resistance within
specification?
|
|
▶
Substitute with a known - good PCM and check for proper
operation.
If the problem is
corrected, replace PCM and go to "Verification of Vehicle
Repair" procedure.
|
|
|
▶
Substitute with a known - good auto cruise switch and check
for proper operation.
If the
problem is corrected, replace auto cruise switch and go to
"Verification of Vehicle Repair"
procedure.
|
|
There is a memory reset function on
scantool that can erase optional parts automatically detected
and memorized by PCM.
After testing PCM on the vehicle, use
this function to reuse the PCM on the
others. | |
| Verification Of Vehicle
Repair |
After a repair, it is
essential to verify that the fault has been corrected.
| 1. |
Connect scantool and select "DTC"
button. |
| 2. |
Press "DTC Status" button and confirm that
"DTC Readiness Flag" indicates "Completed". If not, drive the
vehicle within conditions noted in the freeze frame data or enable
conditions. |
| 3. |
Read "DTC Status"
parameter. |
| 4. |
Is parameter displayed "History(Not Present)
fault"?
|
|
▶ System
performing to specification at this time. Clear the
DTC.
|
|
|
▶ Go to the
applicable troubleshooting
procedure.
|
|
