Power Supply and Ground Circuit Inspection

WARNING: This page is about a different car, the 2004 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.

COMBINATION METER FUSES CHART

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 DISTRIBUTION " and "GROUND DISTRIBUTION ".

CHECK POWER SUPPLY CIRCUIT

Disconnect combination meter connector.
Check voltage between combination meter harness connector terminals and ground.

Fig 1: Terminal Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

TERMINALS CHART

Terminals			Ignition switch position
(+)		(-)	OFF	ACC	ON
Connector	Terminal (Wire color)
M23	31 (Y/R)	Ground	Battery voltage	Battery voltage	Battery voltage
	30(0)		0V	0V	Battery voltage

Fig 2: Checking Voltage Between Combination Meter Harness Connector Terminals And Ground

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

OK or NG

OK: GO TO 3.
NG: Check the harness for open or short between combination meter and fuse

CHECK GROUND CIRCUIT

Check continuity between combination meter harness connector terminals and ground.

CONTINUITY CHART

Terminals			Continuity
	(+)			(-)
Connector	Terminal (Wire color)			(-)
M23	32 (B/W)	Ground	Yes

OK or NG

OK: INSPECTION END.
NG: Repair harness or connector.

Fig 3: Checking Continuity Between Combination Meter Harness Connector Terminals And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.