Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Display Audio Without Bose with 8" Color Display / Dtc/circuit Diagnosis / Steering Switches

Nissan Sentra B18 (2020-2025) Service Manual: Steering Switches

Diagnosis Procedure

Diagnosis Procedure

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

Ignition switch OFF.
Disconnect combination switch connector.
Check resistance between the terminals of combination switch connector.

Combination switch			Condition	Resistance Ω (Approx.)
Connector	Terminal	Terminal	Condition	Resistance Ω (Approx.)
M96	27	25	Depress BACK switch.	1
			Depress switch.	52
			Depress switch.	134
			Depress OK switch.	264
			Depress DISPLAY BACK switch.	654
			Depress DISPLAY FWD switch.	2126
	23		Depress switch.	1
			Depress switch.	52
			Depress switch.	134
			Depress switch.	264
			Depress SEEK DOWN switch.	654
			Depress SEEK UP switch.	2126

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace steering switches. Refer to Removal and Installation.

CHECK HARNESS BETWEEN COMBINATION METER AND COMBINATION SWITCH

Disconnect combination meter connector and combination switch connector.

Check continuity between combination meter connector and combination switch connector .

Combination meter		Combination switch		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M24	23	M30	9	Yes
	33		13
	34		11

Check continuity between combination meter connector and ground.

Combination meter		—	Continuity
Connector	Terminal	—	Continuity
M24	23	Ground	No
	33
	34

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connectors.

CHECK COMBINATION SWITCH

Check continuity between combination switch connectors.

Combination switch				Continuity
Connector	Terminal	Connector	Terminal	Continuity
M96	23	M30	9	Yes
	25		11
	27		13

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace spiral cable. Refer to Removal and Installation.

CHECK HARNESS BETWEEN COMBINATION METER AND AV CONTROL UNIT

Disconnect combination meter connector and AV control unit connector.

Check continuity between combination meter connector and AV control unit connector.

Combination meter		AV control unit		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M24	39	M104	58	Yes
	39		59
	40		38
	40		39

Check continuity between combination meter connector and ground.

Combination meter		—	Continuity
Connector	Terminal	—	Continuity
M24	39	Ground	No
M24	40	Ground	No

Is the inspection result normal?

YES>>

Replace AV control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness or connectors.

 Power Supply and Ground Circuit

Av Control Unit Diagnosis Procedure Diagnosis Procedure CHECK FUSE Check that the following fuse is not blown: Terminal No. Signal name Fuse No. Capacity 19 Battery power supply...

 Front Auxiliary Input Jacks

Diagnosis Procedure Diagnosis Procedure AUX JACK CHECK AUX JACK HARNESS CONTINUITY Ignition switch OFF. Disconnect AV control unit connector and front auxiliary input jacks conn...

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