Inspection Procedure

INSPECT CRUISE CONTROL MAIN SWITCH

Remove the cruise control main switch (See REMOVAL ).

Fig 1: Inspecting Cruise Control Main Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Switch Condition	Specified Condition
1 - 3	+ (ACCEL)/RES (RESUME)	235 to 245 Ω
1 - 3	- (COAST)/SET	617 to 643 Ω
1 - 3	CANCEL	1,509 to 1,571 Ω
1 - 3	Main Switch OFF	10 kΩ or higher
1 - 3	Main Switch ON	Below 1 Ω

Reinstall the cruise control main switch.
NG: REPLACE CRUISE CONTROL MAIN SWITCH (See REMOVAL )

OK: Go to Next Step

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

Disconnect the spiral cable side and main switch side connector.

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

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
1 (main switch side) - 3 (spiral cable side)	Always	Below 1 Ω
3 (main switch side) - 4 (spiral cable side)	Always	Below 1 Ω

Reconnect the spiral cable side and main switch side connector.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 2: Measuring Resistance Between Cruise Control Main Switch And Spiral Cable Sub-Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step

INSPECT SPIRAL CABLE SUB-ASSEMBLY

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 SPIRAL CABLE ).
Installation (See INSPECTION ).

Remove the spiral cable.

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

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
4 (CCS) main switch side - S8-1 (CCS)	The spiral cable position is center	Below 1 Ω
	The spiral cable position is 2.5 rotations to the left
	The spiral cable position is 2.5 rotations to the right
3 (ECC) main switch Side - S8-2 (ECC)	The spiral cable position is center	Below 1 Ω
	The spiral cable position is 2.5 rotations to the left
	The spiral cable position is 2.5 rotations to the right

Reinstall the spiral cable.
NG: REPLACE SPIRAL CABLE SUB-ASSEMBLY (See SPIRAL CABLE )

Fig 3: Inspecting Spiral Cable Sub-Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step

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

Disconnect the E14 or E7 ECM connector.
Disconnect the S8 spiral cable connector.

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

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
S8-2 (ECC) - Body Ground	Always	Below 1 Ω

Standard Resistance (for 1GR-FE)

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
E14-11 (CCS) - S8-1 (CCS)	Always	Below 1 Ω
E14-11 (CCS) - Body ground	Always	10 kΩ or higher

Standard Resistance (for 2TR-FE)

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
E7-31 (CCS) - S8-1 (CCS)	Always	Below 1 Ω
E7-31 (CCS) - Body ground	Always	10 kΩ or higher

Reconnect the ECM connector.
Reconnect the spiral cable connector.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 4: Identifying E14, E7 ECM And S8 Spiral Cable Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE