Steering Pad Switch Circuit

NAVIGATION: NAVIGATION SYSTEM: Steering Pad Switch Circuit

Steering Pad Switch Circuit

DESCRIPTION

This circuit sends an operation signal from the steering pad switch to the radio and navigation assembly.
If there is an open in the circuit, the navigation system cannot be operated using the steering pad switch.
If there is a short in the circuit, the resulting condition is the same as if the switch were continuously depressed. Therefore, the radio and navigation assembly cannot be operated using the steering pad switch, and the radio and navigation assembly itself cannot function.

WIRING DIAGRAM





INSPECTION PROCEDURE

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 Service Precautions.

PROCEDURE

1. INSPECT RADIO AND NAVIGATION ASSEMBLY




(a) Disconnect the radio and navigation assembly connector R10.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- INSPECT STEERING PAD SWITCH ASSEMBLY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2. INSPECT STEERING PAD SWITCH ASSEMBLY
(a) Disconnect the steering pad switch assembly connector A.




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





NG -- INSPECT STEERING PAD SWITCH CABLE
OK -- Continue to next step.

3. INSPECT SPIRAL CABLE




(a) Disconnect the steering pad switch assembly and spiral cable connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





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. Removal.

NG -- REPLACE SPIRAL CABLE
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE - RADIO AND NAVIGATION ASSEMBLY)
4. INSPECT STEERING PAD SWITCH CABLE
(a) Disconnect the steering pad switch LH and the steering pad switch RH.




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





NG -- REPLACE STEERING PAD SWITCH CABLE
OK -- Continue to next step.

5. INSPECT STEERING PAD SWITCH RH
(a) Reconnect the steering pad switch RH.




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





NG -- REPLACE STEERING PAD SWITCH RH
OK -- REPLACE STEERING PAD SWITCH LH