Cruise Control Switch Circuit: Wiring Diagram

WARNING: This page is about a different variant/trim than selected.

Fig 1: Cruise Control Switch Circuit Wiring Diagram

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READ VALUE OF INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the ignition switch on, and turn the intelligent tester main switch on.
Check the DATA LIST for proper functioning of the cruise control main switch.

Fig 2: Identifying Cruise Control Main Switch Position

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CCS:

NORMAL CONDITION REFERENCE CHART

Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
MAIN SW (MAIN)	Main switch signal (Main CPU) / ON or OFF	ON: Main switch ON (Pushed on) OFF: Main switch OFF (Pushed off)	-
CANCEL SW	CANCEL switch signal / ON or OFF	ON: CANCEL switch ON OFF: CANCEL switch OFF	-
SET/COAST SW	-/SET switch signal / ON or OFF	ON: -/SET switch ON OFF: -/SET switch OFF	-
RES/ACC SW	+/RES switch signal / ON or OFF	ON: +/RES switch ON OFF: +/RES switch OFF	-

OK: When cruise control main switch operation is performed the results will be same as above.

Result

CONDITION REFERENCE CHART

Condition	Proceed to
OK	A
NG (All items are defective.)	B
NG (One to four items are defective.)	C

A: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C: REPLACE CRUISE CONTROL MAIN SWITCH

B: Go to next step

INSPECT CRUISE CONTROL MAIN SWITCH

Disconnect the cruise control main switch connector.

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

Fig 3: Disconnecting Cruise Control Main Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
1 - 3	Neutral	10 kΩ or higher
1 - 3	+/RES	235 to 245 Ω
1 - 3	-/SET	620 to 640 Ω
1 - 3	CANCEL	1,510 to 1,570 Ω
1 - 3	Main Switch OFF	10 kΩ or higher
1 - 3	Main Switch ON	Below 1 Ω

NG: REPLACE CRUISE CONTROL MAIN SWITCH

OK: Go to next step.

CHECK HARNESS OR CONNECTOR (CRUISE CONTROL MAIN SWITCH - SPIRAL CABLE SUB-ASSEMBLY)

Disconnect the spiral cable connector.
Measure the resistance according to the value(s) in the table below.

Fig 4: Disconnecting Spiral Cable Connector

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Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
1 - A-5	Always	Below 1 Ω
1 - A-4	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.

INSPECT SPIRAL CABLE

Disconnect the spiral cable vehicle side connector.
Measure the resistance according to the value(s) in the table below.

Standard resistance

Fig 5: Disconnecting Spiral Cable Vehicle Side Connector

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
A-4 - C16-4	Below 1 Ω
A-5 - C16-5	Below 1 Ω

NG: REPLACE SPIRAL CABLE

OK: Go to next step.

CHECK WIRE HARNESS (SPIRAL CABLE - HYBRID VEHICLE CONTROL ECU AND BODY GROUND)

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

Standard resistance

Fig 6: Identifying Hybrid Vehicle Control ECU Connector Terminals

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
C16-1 - H12-26 (CCS)	Always	Below 1 Ω
H12-26 (CCS) - Body ground	Always	10 kΩ or higher
C16-1 - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE