Inspection Procedure

READ VALUE USING TECHSTREAM (CRUISE CONTROL MAIN SWITCH)

Connect the Techstream to the DLC3.
Turn the ignition switch to the ON position.
Turn the Techstream on.
Enter the following menus: Powertrain / Cruise Control / Data List.

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

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

ECM (Cruise Control):

DATA LIST REFERENCE

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
CCS Main SW M-CPU	Main switch signal (Main CPU)/ ON or OFF	ON: Main switch on OFF: Main switch off	-
Cancel Switch	CANCEL switch signal/ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
SET/COAST Switch	- (COAST)/SET switch signal/ON or OFF	ON: - (COAST)/SET switch on OFF: - (COAST)/SET switch off	-
RES/ACC Switch	+ (ACCEL)/RES switch signal/ON or OFF	ON: + (ACCEL)/RES switch on OFF: + (ACCEL)/RES switch off	-

OK:

When cruise control switch operation is performed, the results will be same as above.

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

NG: Go to next step

INSPECT CRUISE CONTROL MAIN SWITCH

Fig 2: Inspecting Cruise Control Main Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the cruise control main switch (See REMOVAL ).

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
1 - 3	Neutral	10 kΩ or higher
	Pushed to +RES	235 to 245 Ω
	Pushed to -SET	617 to 643 Ω
	Pushed to CANCEL	1509 to 1571 Ω
	Main switch pushed off	10 kΩ or higher
	Main switch pushed on	Below 1 Ω

NG: REPLACE CRUISE CONTROL MAIN SWITCH

OK: Go to next step

INSPECT CRUISE CONTROL SWITCH WIRE

Remove the cruise control switch wire.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
A-3 - 3	Always	Below 1 Ω
A-4 - 1	Always	Below 1 Ω

NG: REPLACE CRUISE CONTROL SWITCH WIRE

Fig 3: Measuring Resistance Between Cruise Control Switch Wire Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 refer to the "Refer to" in the brackets.

HINT:

Removal (See REMOVAL )
Installation (See INSTALLATION )

Remove the spiral cable.

Fig 4: Identifying Terminals Of Spiral Cable Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Spiral Cable Position	Specified Condition
A-3 (CCS) - 1 (CCS)	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right
A-4 (ECC) - 2 (ECC)	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right

HINT:

The spiral cable makes a maximum of approximately 5 rotations.

NG: REPLACE SPIRAL CABLE

OK: Go to next step

CHECK WIRE HARNESS (SPIRAL CABLE - ECM AND BODY GROUND)

Disconnect the E7 cable connector.
Disconnect the A9 ECM connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

for 2GR-FE

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
E7-1 (CCS) - A9-45 (CCS)	Below 1 Ω
E7-2 (ECC) - Body ground	Below 1 Ω

for 2AR-FE

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
E7-1 (CCS) - A9-40 (CCS)	Below 1 Ω
E7-2 (ECC) - Body ground	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 5: Identifying Terminals Of E7 Cable And A9 ECM Connectors

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