For location, refer to “LOCATION” of “CRUISE CONTROL SYSTEM (DIAGNOSTICS)” section.
CRUISE CONTROL (DIAGNOSTICS)>Electrical Component Location>LOCATION
When performing service operation, refer to “Repair Contents” in “General Description”.
REPAIR CONTENTS>Repair Contents
Before disconnecting connectors of sensors or units, be sure to disconnect the ground terminal from the battery sensor. When replacing the audio and MFD parts provided with memory functions, record the memory contents before disconnecting the ground terminal from the battery sensor.
Be careful of the following items. Failing to do so may cause the airbag system malfunction.
Yellow connectors and harnesses with yellow
tapes around them are the connectors and harnesses for the airbag
system. When using a tester on these circuits, follow the cautions of
“AIRBAG SYSTEM”.
AIRBAG SYSTEM>General Description>CAUTION
Be careful not to damage the airbag system wiring harness when servicing the electrical parts around the steering column.
When removing, installing or replacing the
VDCCM&H/U, VDCCM&H/U bracket, steering wheel or steering angle
sensor (steering roll connector), perform “VSC(VDC) Centering Mode” of
the VDC.
VEHICLE
DYNAMICS CONTROL (VDC)>VDC Control Module and Hydraulic Control Unit
(VDCCM&H/U)>ADJUSTMENT > VDC SENSOR MIDPOINT SETTING MODE
|
TOOL NAME |
REMARKS |
|
Circuit tester |
Used for measuring resistance, voltage and current. |
|
Fuse & relay box (F/B) |
Fuse 7.5 A (stop light and brake switch) |
(A) |
For other related fuses, refer to the wiring diagram.
WIRING SYSTEM>Power Supply Circuit>WIRING DIAGRAM
Remove the fuse and inspect visually.
If the fuse is blown out, replace the fuse.
If the fuse is blown again, check the system wiring harness.
Refer to “Cruise Control System” in the wiring diagram.
WIRING SYSTEM>Cruise Control System>WIRING DIAGRAM
For basic inspection, refer to “Basic Diagnostic Procedure” of “CRUISE CONTROL SYSTEM (DIAGNOSTICS)”.
CRUISE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure
For the specification (electrical component),
refer to “Control Module I/O Signal” of “CRUISE CONTROL SYSTEM
(DIAGNOSTICS)” section.
CRUISE CONTROL (DIAGNOSTICS)>Control Module I/O Signal>ELECTRICAL SPECIFICATION
For operation procedures of each component of the cruise control system, refer to the respective section.
Control module
System control of the cruise control is performed by each module. For procedure, refer to the following sections.
Engine control module (ECM):
FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)
Transmission control module (TCM):
CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Transmission Control Module (TCM)
Cruise control command switch:
EyeSight>Switches and Harness
Combination meter:
INSTRUMENTATION/DRIVER INFO>Combination Meter
Stop light and brake switch:
BRAKE>Stop Light Switch
Inhibitor switch:
CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Inhibitor Switch
System control of the cruise control is performed by each module. For procedure, refer to the following sections.
Engine control module (ECM):
FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)
Transmission control module (TCM):
CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Transmission Control Module (TCM)
For the operation procedures for cruise control command switch assembly, refer to “EyeSight” section.
EyeSight>Switches and Harness
Measure the resistance between connector terminals.
Preparation tool:
Circuit tester
|
Terminal No. |
Inspection conditions |
Standard |
|
|
3 — 9 |
CANCEL SET/− RES/+ |
All OFF |
Approx. 4,020 Ω |
|
CANCEL |
ON |
Less than 1 Ω |
|
|
SET/− |
ON |
Approx. 250 Ω |
|
|
RES/+ |
ON |
Approx. 1,470 Ω |
|
|
4 — 9 |
CRUISE |
OFF |
3 MΩ or more |
|
ON |
Less than 1 Ω |
||
Apply battery voltage between the connector terminals to check lighting condition of illumination inside the switch.
When applying battery voltage, do not mix up the positive (+) side and the negative (−) side.
Incorrect polarity connection may cause LED damage inside the switch.
|
Terminal No. |
Inspection conditions |
Specification |
|
10 (+) — 11 (−) |
Apply battery voltage. |
Light ON |
Replace the cruise control command switch if it is found defective.
For the operation procedures for combination meter, refer to “INSTRUMENTATION/DRIVER INFO” section.
INSTRUMENTATION/DRIVER INFO>Combination Meter
For the operation procedures for stop light and brake switch, refer to “BRAKE” section.
BRAKE>Stop Light Switch
For the operation procedures for inhibitor switch, refer to “CONTINUOUSLY VARIABLE TRANSMISSION” section.
CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Inhibitor Switch
For diagnostics with phenomenon, refer to “Diagnostics with Phenomenon” of “CRUISE CONTROL SYSTEM (DIAGNOSTICS)” section.
CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon