Power Supply and Ground Circuit Inspection

WARNING: This page is about a different car, the 2008 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSES

Check for blown combination meter fuses.

FUSES REFERENCE

Unit	Power source	Fuse No.
Combination meter	Battery	19
Combination meter	Ignition switch ON or START	14

Refer to "WIRING DIAGRAM - METER ".

OK or NG

OK: GO TO 2.

NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".

CHECK POWER SUPPLY CIRCUIT

Disconnect combination meter connector.

Check voltage between combination meter harness connector terminals and ground.

Fig 1: Checking Voltage Between Combination Meter Harness Connector Terminals 38, 40 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

VOLTAGE CHART

Terminals			Ignition switch position
(+)		(-)	OFF	ACC	ON
Connector	Terminal	(-)	OFF	ACC	ON
M24	38	Ground	0V	0V	Battery voltage
M24	40	Ground	Battery voltage	Battery voltage	Battery voltage

OK or NG

OK: GO TO 3.

NG: Check the harness for open between combination meter and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

Check continuity between combination meter harness connector terminals and ground.

Fig 2: Checking Continuity Between Combination Meter Harness Connector Terminals 20, 21 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

CONTINUITY REFERENCE CHART

Terminals			Continuity
(+)		(-)
Connector	Terminal	(-)
M24	20	Ground	Yes
M24	21	Ground	Yes

OK or NG

OK: Inspection End.

NG: Repair harness or connector.