Inspection Procedure

READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM

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

According to the display on the Techstream, read the "Data List".

Cruise control:

DATA LIST

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

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

NG: Go to step 2

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

INSPECT CRUISE CONTROL MAIN SWITCH

Remove the cruise control main switch (see CRUISE CONTROL MAIN SWITCH ).

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

Fig 1: Inspecting Cruise Control Main Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Switch Condition	Specified Condition
A-1 (CCS) - A-3 (ECC)	Neutral	10 kΩ or higher
A-1 (CCS) - A-3 (ECC)	+ (ACCEL)/RES (RESUME)	216 to 264 Ω
A-1 (CCS) - A-3 (ECC)	- (COAST)/SET	567 to 693 Ω
A-1 (CCS) - A-3 (ECC)	CANCEL	1,386 to 1,694 Ω
A-1 (CCS) - A-3 (ECC)	Main Switch on	Below 1 Ω

NG : REPLACE CRUISE CONTROL MAIN SWITCH (See CRUISE CONTROL MAIN SWITCH )

OK: Go to next step.

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

Disconnect the connector from the spiral cable.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester connection	Condition	Specified condition
A-1 - 3	Always	Below 1 Ω
A-3 - 4	Always	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 2: Checking Harness And Connector (Cruise Control Main Switch - Spiral Cable)

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 read the article 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

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Spiral Cable Position	Specified Condition
3 - C9-1 (CCS)	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right
4 - C9-2 (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 (See REMOVAL )

Fig 3: Inspecting Spiral Cable

OK: Go to next step.

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

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
C9-1 - A36-40 (CCS)	Always	Below 1 Ω
A36-40 (CCS) - Body ground	Always	10 kΩ or higher
C9-2 (ECC) - Body ground	Always	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 4: Identifying C9 And A36 Connector Terminals

OK : REPLACE ECM (See REMOVAL )