Steering Pad Switch Circuit [06/2017 - ]: Procedure

1. Disconnect the G78 navigation receiver assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G78-21 (SW1) - Body ground	No switch pushed	95 to 105 kΩ
   	Seek+ switch pushed	Below 2.5 Ω
   	Seek- switch pushed	313 to 345 Ω
   	Volume+ switch pushed	950 to 1050 Ω
   	Volume- switch pushed	2955 to 3265 Ω
   G78-22 (SW2) - Body ground	No switch pushed	95 to 105 kΩ
   	MODE switch pushed	Below 2.5 Ω
   	On hook switch pushed	313 to 345 Ω
   	Off hook switch pushed	950 to 1050 Ω
   	Voice switch pushed	2955 to 3265 Ω

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

Refer to PROBLEM SYMPTOMS TABLE [11/2015 - ] )

Result: 

NG 

See step  2

1. Remove the steering pad switch LH (Refer to REMOVAL [06/2017 - ] ).
2. Inspect the steering pad switch LH Refer to INSPECTION [06/2017 - ] ).

Result: 

NG 

REPLACE STEERING PAD SWITCH LH 

Refer to REMOVAL [06/2017 - ] )

Result: 

OK 

See step  3

1. Remove the steering pad switch RH (Refer to REMOVAL [06/2017 - ] ).
2. Inspect the steering pad switch RH Refer to INSPECTION [06/2017 - ] ).

Result: 

NG 

REPLACE STEERING PAD SWITCH RH 

Refer to REMOVAL [06/2017 - ] )

Result: 

OK 

See step  4

1. Remove the spiral cable with sensor sub-assembly (Refer to REMOVAL [11/2015 - ] ).
2. Inspect the spiral cable with sensor sub-assembly (Refer to INSPECTION [06/2017 - ] ).

Result: 

OK 

REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY, BODY GROUND) 

Result: 

NG 

REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY 

Refer to REMOVAL [11/2015 - ] )