Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The vehicle is equipped with an SRS (Supplemental Restraint System) such as the airbags. Before servicing (including removal or installation of parts), be sure to read the precautionary notice for the Supplemental Restraint System (See AIRBAG SYSTEM ).

INSPECT NAVIGATION RECEIVER ASSEMBLY

Fig 1: Inspecting Navigation Receiver Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the navigation receiver assembly connector R6.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester connection	Condition	Specified condition
SW1 - SWG	No switch is pushed	Approx. 100 kΩ
SW1 - SWG	SEEK+ switch: pushed	0 to 2.5 Ω
SW1 - SWG	SEEK- switch: pushed	Approx. 0.3 kΩ
SW1 - SWG	VOL+ switch: pushed	Approx. 1 kΩ
SW1 - SWG	VOL-switch: pushed	Approx. 3.1 kΩ
SW2 - SWG	No switch is pushed	Approx. 100 kΩ
SW2 - SWG	MODE switch: pushed	0 to 2.5 Ω
SW2 - SWG	VOICE switch: pushed	Approx. 3.1 kΩ
SW2 - SWG	ON HOOK switch: pushed	Approx. 0.3 kΩ
SW2 - SWG	OFF HOOK switch: pushed	Approx. 1 kΩ

NG: Go to step 2

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

INSPECT STEERING PAD SWITCH ASSEMBLY

Disconnect the steering pad switch assembly connector a1.

Fig 2: Inspecting Steering Pad Switch Assembly
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	Condition	Specified condition
AU1 - EAU	No switch is pushed	Approx. 100 kΩ
AU1 - EAU	SEEK+switch: pushed	0 to 2.5 Ω
AU1 - EAU	SEEK-switch: pushed	Approx. 0.3 kΩ
AU1 - EAU	VOL+ switch: pushed	Approx. 1 kΩ
AU1 - EAU	VOL- switch: pushed	Approx. 3.1 kΩ
AU2 - EAU	No switch is pushed	Approx. 100 kΩ
AU2 - EAU	MODE switch: pushed	0 to 2.5 Ω
AU2 - EAU	VOICE switch: pushed	Approx. 3.1 kΩ
AU2 - EAU	ON HOOK switch: pushed	Approx. 0.3 kΩ
AU2 - EAU	OFF HOOK switch: pushed	Approx. 1 kΩ

NG: REPLACE STEERING PAD SWITCH ASSEMBLY

OK: Go to next step

INSPECT SPIRAL CABLE

Disconnect the steering pad switch assembly and spiral cable connectors.

Fig 3: Identifying Spiral Cable (AU2) Connector Terminals
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
EAU - EAU	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right
AU1 - AU1	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right
AU2 - AU2	Center	Below 1 Ω
	2.5 rotations to the left
	2.5 rotations to the right

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:

See REMOVAL
See INSTALLATION

NG: REPLACE SPIRAL CABLE

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE - NAVIGATION RECEIVER ASSEMBLY)