Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit Inspection

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

CHECK HARNESS

Turn ignition switch OFF.
Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).

Check continuity between satellite radio tuner (factory installed) and audio unit.

TERMINAL CONTINUITY CHART

Terminals				Continuity
Satellite radio tuner		Audio unit
Connector	Terminal	Connector	Terminal
A: M41	21	B: M42	41	Yes
A: M41	22	B: M42	42	Yes

Check continuity between satellite radio tuner (factory installed) and ground.

TERMINAL CONTINUITY CHART

Terminals			Continuity
Satellite radio tuner		-
Connector	Terminal	-
A: M41	21	Ground	No
A: M41	22	Ground	No

Fig 1: Checking Continuity Between Satellite Radio Tuner (Factory Installed) And Audio Unit

OK or NG

OK: GO TO 2.

NG: Repair harness or connector.

CHECK LEFT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed) connector M41 terminals 21 and 22 with CONSULT-II or oscilloscope.
  21 - 22 : Refer to "TERMINALS AND REFERENCE VALUES FOR SATELLITE RADIO TUNER ".
OK or NG

OK: Replace satellite radio tuner. Refer to "SATELLITE RADIO TUNER ".

NG: Replace audio unit. Refer to "AUDIO UNIT - WITH NAVI " or "AUDIO UNIT - WITHOUT NAVI ".

Fig 2: Checking Signal Between Satellite Radio Tuner (Factory Installed) Connector M41 Terminals 21 And 22