Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

READ VALUE USING TECHSTREAM

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

According to the display on tester, read the "DATA LIST".

Fig 1: Identifying Cruise Control Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

ECM (Cruise Control System)

MEASUREMENT ITEM/RANGE CHART

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

Result:

RESULT REFERENCE

Result	Proceed to
OK	A
NG (All items are defective)	B
NG (1 to 5 items are defective)	C

OK: When the cruise control main switch is operated, the display changes as shown above.

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

C: REPLACE CRUISE CONTROL MAIN SWITCH (See REMOVAL )

B: Go to next step.

INSPECT CRUISE CONTROL MAIN SWITCH

Fig 2: Identifying Cruise Control Main Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the cruise control main switch.

Measure the resistance.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Switch Condition	Specified Condition
1 - 3	cruise control switch neutral	10 kΩ or higher
	cruise control switch ON	Below 1 Ω
	cruise control switch OFF	10 kΩ or higher
	+/RES	216 to 264 Ω
	-/SET	567 to 693 Ω
	CANCEL	1,386 to 1,694 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)

Fig 3: Identifying Harness And Connector (Cruise Control Main Switch - Spiral Cable)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the spiral cable side connector.
Disconnect the cruise control main switch side connector.

Measure the resistance.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Specified Condition
Terminal 1 (ECC) main switch side - Terminal 4 (ECC) spiral cable side	Below 1 Ω
Terminal 3 (CCS) main switch side - Terminal 5 (CCS) spiral cable side	Below 1 Ω

Reconnect the spiral cable side connector.
Reconnect the cruise control main switch side connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

CHECK 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. (See REMOVAL )

Remove the spiral cable.

Fig 4: Identifying Spiral Cable

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Specified Condition
Terminal 5 (CCS) main switch side - CCS (E17-5)	Below 1 Ω
Terminal 4 (ECC) main switch side - ECC (E17-4)	Below 1 Ω

HINT:

The spiral cable makes a maximum of approximately 5 rotations.

Reinstall the spiral cable.

NG: REPLACE SPIRAL CABLE (See REMOVAL )

OK: Go to Next Step

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

Disconnect the E46 ECM connector.

Fig 5: Identifying E17 Spiral Cable Connector Terminals And E46 ECM Connector Terminals

Disconnect the E17 spiral cable (vehicle side) connector.

Measure the resistance.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Specified Condition
E46-2 (CCS) - E17-5 (CCS)	Below 1 Ω
E46-2 (CCS) or E17-5 (CCS) - Body ground	10 kΩ or higher
E17-4 (ECC) - Body ground	Below 1 Ω

Reconnect the ECM connector.
Reconnect the spiral cable (vehicle side) connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE ECM (See REMOVAL )