Steering Switch Check (With Bluetooth)

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

CHECK HARNESS

Turn ignition switch OFF.
Disconnect Bluetooth control unit connector B15 and spiral cable connector M30.

Check continuity between Bluetooth control unit connector B15 (A) terminals 12, 13, and 14 and spiral cable connector M30 (B) terminals 25, 31, and 33.

CONNECTOR TERMINAL CONTINUITY SPECIFICATION

Terminals				Continuity
A		B
Connector	Terminal	Connector	Terminal
B15	12	M30	33	Yes
	13		31
	14		25

Check continuity between Bluetooth control unit and ground.

CONNECTOR TERMINAL CONTINUITY SPECIFICATION

Terminals			Continuity
(+)		(-)
Connector	Terminal	(-)
B15	12	Ground	No
	13
	14

OK or NG

OK: GO TO 2.

NG: Repair harness.

Fig 1: Checking Continuity Between Bluetooth Control Unit And Ground

CHECK HARNESS

Disconnect audio unit connector M43.

Check continuity between audio unit connector M43 (A) terminals 6, 15, and 16 and Bluetooth control unit connector B15 (B) terminals 17, 19, and 18.

CONNECTOR TERMINAL CONTINUITY SPECIFICATION

Terminals				Continuity
(A)		(B)
Connector	Terminal	Connector	Terminal
M43	6	B15	17	Yes
	15		19
	16		18

OK or NG

OK: GO TO 3.

NG: Repair harness.

Fig 2: Checking Continuity Between Audio Unit Connector M43 Terminals And Bluetooth Control Unit Connector

SPIRAL CABLE CHECK
1. Disconnect spiral cable connector M78.
2. Check continuity between spiral cable terminals.
  15 - 33 : Continuity should exist.
  
  17 - 31 : Continuity should exist.
  
  19 - 25 : Continuity should exist.
OK or NG

OK: GO TO 4.

NG: Replace spiral cable. Refer to "REMOVAL AND INSTALLATION ".

Fig 3: Checking Continuity Between Spiral Cable Terminals

CHECK STEERING SWITCH RESISTANCE

Check resistance between spiral cable connector M78 terminals.

CONNECTOR TERMINAL RESISTANCE SPECIFICATION

Terminal		Signal name	Condition	Resistance (Ω) (Approx.)
17	19	Seek (down)	Depress Seek down switch.	165
		Phone/Send	Depress Phone/Send switch.	0
		Volume (down)	Depress volume down switch.	487
15	19	Seek (up)	Depress Seek up switch.	165
		Phone/End	Depress Phone/End switch.	0
		Volume (up)	Depress volume up switch.	487

Fig 4: Checking Resistance Between Spiral Cable Connector M78 Terminals

OK or NG

OK: Inspection End.

NG: Replace steering switch. Refer to "STEERING WHEEL AUDIO CONTROL SWITCHES ".