CRUISE CONTROL  CRUISE CONTROL SYSTEM  Cruise Control Switch Circuit  


DESCRIPTION

The cruise control main switch is used to turn the cruise control system on and off, as well as operate 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP and CANCEL. The SET, TAP-DOWN and - (COAST) functions, and the RES (RESUME), TAP-UP and + (ACCEL) functions are operated with the same switch. The cruise control main switch is an automatic return type switch which turns on only while operating it in the direction of each arrow and turns off after releasing it. The internal contact points of the cruise control main switch turn on with switch operation. Then the ECM reads the voltage value that has been changed by the switch operation to control the SET, - (COAST), RES (RESUME), + (ACCEL), and CANCEL functions.

WIRING DIAGRAM

A390527E06
6.365,0.594 6.823,0.792 0.458,0.198 10 false CCS 6.365,1.292 6.823,1.49 0.458,0.198 10 false ECCS 6.021,0.354 6.479,0.552 0.458,0.198 10 false 36 6.01,1.063 6.469,1.26 0.458,0.198 10 false 35 5.979,0.583 6.438,0.781 0.458,0.198 10 false A40 5.979,1.281 6.438,1.479 0.458,0.198 10 false A40 6.5,5.313 6.958,5.51 0.458,0.198 10 false ECM 5.031,3.052 5.49,3.25 0.458,0.198 10 false E8 5.031,3.948 5.49,4.146 0.458,0.198 10 false E8 5.083,2.813 5.542,3.01 0.458,0.198 10 false 1 5.094,3.698 5.552,3.896 0.458,0.198 10 false 2 4.438,2.927 4.896,3.125 0.458,0.198 10 false CCS 4.448,3.813 4.906,4.01 0.458,0.198 10 false ECC 3.979,3.042 4.438,3.24 0.458,0.198 10 false z4 3.979,3.948 4.438,4.146 0.458,0.198 10 false z4 4.01,3.698 4.469,3.896 0.458,0.198 10 false 4 4,2.802 4.458,3 0.458,0.198 10 false 3 3.552,2.927 4.01,3.125 0.458,0.198 10 false 3 3.542,3.813 4,4.01 0.458,0.198 10 false 1 2.896,3.521 3.5,3.74 0.604,0.219 10 false ON-OFF 2.104,3.51 2.708,3.729 0.604,0.219 10 false +/RES 1.344,3.51 1.948,3.729 0.604,0.219 10 false -/SET 0.552,3.51 1.156,3.729 0.604,0.219 10 false CANCEL 0.865,4.479 2.792,4.719 1.927,0.24 10 false Cruise Control Main Switch 3.396,4.625 4.271,4.958 0.875,0.333 10 false Cruise Control Switch Wire 4.292,4.469 5.99,4.75 1.698,0.281 10 false Spiral Cable Sub-assembly 0.573,4.479 1.031,4.677 0.458,0.198 10 false z10 5.969,4.844 6.427,5.042 0.458,0.198 10 false B64 6.021,4.615 6.479,4.813 0.458,0.198 10 false 59 6.365,4.844 6.823,5.042 0.458,0.198 10 false E1

PROCEDURE

1.READ VALUE ON GTS
a.
E107091C01
2.144,0.084 2.42,0.273 0.276,0.189 10 *c 2.763,1.172 3.003,1.374 0.24,0.202 10 *a 1.934,1.577 2.325,1.779 0.391,0.202 10 *b 1.033,1.235 1.268,1.437 0.235,0.202 10 *d
*a ON-OFF
*b -/SET
*c +/RES
*d CANCEL


Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Cruise Control / Data List.


e.

Check the Data List to confirm proper functioning of the cruise control main switch.

Powertrain > Cruise Control > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Main SW M-CPU Cruise control main switch signal (Main CPU) ON or OFF ON: Cruise control main switch (ON-OFF button) being pushed and held
OFF: Cruise control main switch (ON-OFF button) released
-
Cancel Switch Switch CANCEL switch signal ON or OFF ON: CANCEL switch operated
OFF: CANCEL switch released
-
SET/COAST Switch -/SET switch signal ON or OFF ON: -/SET switch operated
OFF: -/SET switch released
-
RES/ACC Switch +/RES switch signal ON or OFF ON: +/RES switch operated
OFF: +/RES switch released
-
Powertrain > Cruise Control > Data List
Tester Display
Main SW M-CPU
Cancel Switch
SET/COAST Switch
RES/ACC Switch
50003 237 16,23,22,21
OK:

When the cruise control main switch is operated, the display changes as shown above.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.INSPECT CRUISE CONTROL MAIN SWITCH
2.INSPECT CRUISE CONTROL MAIN SWITCH
a.

Remove the cruise control main switch.

Click hereEngine / Hybrid System>CRUISE CONTROL>CRUISE CONTROL MAIN SWITCH>REMOVAL


b.

Measure the resistance according to the value(s) in the table below.

E265511C01
5.021,1.167 5.5,0.667 5.5,0.667 5.75,0.667 false 5.781,0.583 6.094,0.74 0.313,0.156 10 *1 0.083,0.083 0.396,0.24 0.313,0.156 10 *a 5.917,1.25 6.229,1.406 0.313,0.156 10 *b 4.604,0.583 4.917,0.74 0.313,0.156 10 *c 5.021,2.344 5.333,2.5 0.313,0.156 10 *d 3.833,2.167 4.146,2.323 0.313,0.156 10 *e
*1 Cruise Control Main Switch (ON-OFF button) - -
*a Component without harness connected
(Cruise Control Main Switch)
*b ON-OFF
*c +/RES *d -/SET
*e CANCEL - -


Standard Resistance:
Tester Connection Condition Specified Condition
1 - 3 Cruise control main switch (ON-OFF button) released 1 MΩ or higher
Cruise control main switch (ON-OFF button) being pushed and held Below 2.5 Ω
+/RES switch operated 235 to 245 Ω
-/SET switch operated 617 to 643 Ω
CANCEL switch operated 1509 to 1571 Ω



Result:
Proceed to
OK
NG



OK

3.CHECK CRUISE CONTROL SWITCH WIRE

NG

3.CHECK CRUISE CONTROL SWITCH WIRE
a.
E232246C25
0.24,1.344 0.667,1.646 0.427,0.302 0.083,3.865 0.51,4.167 0.427,0.302 0.333,0.854 0.5,1.031 0.167,0.177 10 false *a 0.333,3.177 0.5,3.354 0.167,0.177 10 false *b 0.385,1.396 0.823,1.75 0.438,0.354 10 false z4 0.188,3.917 0.625,4.271 0.438,0.354 10 false z10
*a Front view of wire harness connector
(to Spiral Cable Sub-assembly)
*b Front view of wire harness connector
(to Cruise Control Main Switch)


Remove the cruise control switch wire.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Specified Condition
z4-3 - z10-3 Below 1 Ω
z4-4 - z10-1 Below 1 Ω



Result:
Proceed to
OK
NG



OK

4.INSPECT SPIRAL CABLE SUB-ASSEMBLY

NG

REPLACE CRUISE CONTROL SWITCH WIRE

4.INSPECT SPIRAL CABLE SUB-ASSEMBLY
a.

Inspect the spiral cable sub-assembly.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>INSPECTION


Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

5.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)
a.

Disconnect the A40 ECM connector.


b.

Disconnect the E8 spiral cable sub-assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A40-36 (CCS) - E8-1 (CCS) Always Below 1 Ω
A40-35 (ECCS) - E8-2 (ECC) Always Below 1 Ω
A40-36 (CCS) or E8-1 (CCS) - Body ground Always 10 kΩ or higher
A40-35 (ECCS) or E8-2 (ECC) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - SPIRAL CABLE SUB-ASSEMBLY)

6.CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)
a.

Disconnect the B64 ECM connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
B64-59 (E1) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR