Inspection Procedure

READ VALUE OF INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position.
According to the display on the tester, read the "DATA LIST".

Fig 1: Checking Cruise Control Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CCS (ECM):

CCS (ECM)

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

OK: When the cruise control main switch is operated, the normal conditions listed above are shown on the display.

Result

DTC RESULT

Result	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 SPIRAL CABLE

B: GO TO NEXT STEP

INSPECT CRUISE CONTROL MAIN SWITCH ASSEMBLY

Disconnect the cruise control main switch connector.

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

Standard resistance

CRUISE CONTROL MAIN SWITCH ASSEMBLY

Tester Connection	Switch Position	Specified Condition
A-2 - A-3	Neutral	10 kΩ or higher
A-2 - A-3	RES/ACC	210 to 270 Ω
A-2 - A-3	SET/COAST	560 to 700 Ω
A-2 - A-3	CANCEL	1,380 to 1,700 Ω
A-2 - A-3	Main Switch OFF	10 kΩ or higher
A-2 - A-3	Main Switch ON	Below 1 Ω

Fig 2: Inspecting Cruise Control Main Switch Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE CRUISE CONTROL MAIN SWITCH ASSEMBLY

OK: GO TO NEXT STEP

INSPECT SPIRAL CABLE

NOTE: The spiral cable is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable may prevent the airbag from deploying. Be sure to read the page shown in the brackets.

HINT:

Removal (See REMOVAL )
Installation (See INSTALLATION )

Remove the spiral cable.

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

Standard resistance

SPIRAL CABLE

Tester Connection	Spiral Cable Position	Specified Condition
A-2-C10-2	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right
A-3 - C10-3	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right

Fig 3: Identifying Spiral Cable

HINT:

The spiral cable makes a maximum of approximately 5 rotations.

NG: REPLACE SPIRAL CABLE

OK: GO TO NEXT STEP

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM, BODY GROUND)

Disconnect the ECM connector.

Fig 4: Identifying C10 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

SPIRAL CABLE - ECM, BODY GROUND

Tester Connection	Condition	Specified Condition
C10-2-E5-24(CCS)	Always	Below 1 Ω
E5-24 (CCS) - Body ground	Always	10 kΩ or higher
C10-2 - Body ground	Always	Below 1 Ω

Fig 5: Identifying E5 Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE ECM