Component Testing

Ignition OFF, disconnect the X3 harness connector at the X85 Steering Wheel Air Bag Coil.

Test the resistance between the signal circuit terminal 2 and the low reference circuit terminal 5 while pressing the appropriate steering wheel controls switch button listed below:

Function Switch	Minimum Resistance Value	Maximum Resistance Value
Phone send	710 Ω	740 Ω
Source Switch	.5 Ω	3 Ω
Seek Down	305 Ω	340 Ω
Seek Up	110 Ω	135 Ω

If not the specified value
Replace the S70L Steering Wheel Controls Switch - Left.

Go to next step: If the specified value

Test the resistance between the signal circuit terminal 3 and the low reference circuit terminal 5 while pressing the appropriate steering wheel controls switch button listed below:

Function Switch	Minimum Resistance Value	Maximum Resistance Value
Phone End	305 Ω	340 Ω
Volume Down	.5 Ω	3 Ω
Volume Up	110 Ω	135 Ω

If not the specified value
Replace the S70L Steering Wheel Controls Switch - Left.

Go to next step: If the specified value

All OK