RM3660EC _56 Audio / Visual / Telematics _080752 NAVIGATION / MULTI INFO DISPLAY _0391865 NAVIGATION SYSTEM(for Gasoline Model with RST Switch) J

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM(for Gasoline Model with RST Switch)  Steering Pad Switch Circuit  


DESCRIPTION

This circuit sends an operation signal from the steering pad switch assembly to the navigation receiver assembly.

If there is an open in the circuit, the audio system cannot be operated using the steering pad switch assembly.

If there is a short in the circuit, the same condition as when a switch is continuously depressed occurs.

Therefore, the navigation receiver assembly cannot be operated using the steering pad switch assembly, also the navigation receiver assembly itself will not function.

WIRING DIAGRAM

E367009E52
1.052,4.792 5.333,4.99 4.281,0.198 10 false Steering Pad Switch Assembly 4.469,3.385 5.552,4.01 1.083,0.625 10 false Spiral Cable Sub-assembly 5.927,3.521 7.125,3.885 1.198,0.365 10 false Navigation Receiver Assembly 5.927,3.344 6.385,3.542 0.458,0.198 10 false I169 2.156,2.365 3.01,2.844 0.854,0.479 10 false MODE/HOLD 1.104,3.792 2.229,4.042 1.125,0.25 10 false Telephone 2.167,3.802 2.625,4 0.458,0.198 10 false Voice 0.406,1.26 1.479,1.458 1.073,0.198 10 false Volume- 1.177,1.271 2.25,1.469 1.073,0.198 10 false Volume+ 1.99,1.281 3.063,1.479 1.073,0.198 10 false Seek- 2.604,1.271 3.677,1.469 1.073,0.198 10 false Seek+ 4.813,2.833 5.281,3.042 0.469,0.208 10 false AU2 4.813,1.729 5.281,1.938 0.469,0.208 10 false EAU 4.823,0.615 5.292,0.823 0.469,0.208 10 false AU1 4.385,0.698 4.698,0.896 0.313,0.198 10 false z3 5.354,2.917 5.813,3.115 0.458,0.198 10 false I82 4.406,0.51 4.719,0.708 0.313,0.198 10 false 3 4.375,1.615 4.688,1.813 0.313,0.198 10 false 10 4.417,2.719 4.729,2.917 0.313,0.198 10 false 9 5.354,0.5 5.667,0.698 0.313,0.198 10 false 12 5.396,2.719 5.708,2.917 0.313,0.198 10 false 5 5.385,1.615 5.698,1.813 0.313,0.198 10 false 4 6.104,2.833 6.417,3.031 0.313,0.198 10 false 22 6.104,1.729 6.417,1.927 0.313,0.198 10 false 23 6.104,0.615 6.417,0.813 0.313,0.198 10 false 21 6.333,0.698 6.802,0.906 0.469,0.208 10 false SW1 6.333,1.833 6.802,2.042 0.469,0.208 10 false SWG 6.323,2.917 6.792,3.125 0.469,0.208 10 false SW2 5.354,0.698 5.813,0.896 0.458,0.198 10 false I82 5.354,1.802 5.813,2 0.458,0.198 10 false I82 4.375,1.813 4.688,2.01 0.313,0.198 10 false z3 4.375,2.917 4.688,3.115 0.313,0.198 10 false z3

PROCEDURE

1.CHECK HARNESS AND CONNECTOR (STEERING PAD SWITCH SIGNAL)
a.

Disconnect the I169 navigation receiver assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I169-21 (SW1) - I169-23 (SWG) 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
I169-22 (SW2) - I169-23 (SWG) No switch pushed 95 to 105 kΩ
MODE/HOLD switch pushed Below 2.5 Ω
Telephone switch pushed 950 to 1050 Ω
Voice switch pushed 2955 to 3265 Ω



Result:
Proceed to
OK
NG



OK

NG

2.INSPECT STEERING PAD SWITCH ASSEMBLY