Owner's Manual

MTC-56

TROUBLE DIAGNOSIS

Revision: March 2005 2005 Altima

4. CHECK VOLTAGE FOR FAN CONTROL AMP.

1. Turn ignition switch ON.

2. Turn fan dial to any position except OFF or AUTO.

3. Check voltage between fan control amp. harness connector

M64 terminal 2 L/Y and ground.

OK or NG

OK >> 1. Replace fan control amp.

2. Confirm that blower motor operation is normal.

NG >> GO TO 5.

5. CHECK FAN CONTROL AMP. CIRCUIT BETWEEN FAN CONTROL AMP. AND FRONT AIR CONTROL

1. Turn ignition switch OFF.

2. Disconnect front air control and fan control amp. harness con-

nectors.

3. Check continuity between fan control amp. harness connector

M64 terminal 2 (L/Y) and front air control harness connector

M49 terminal 17 (L/Y).

If OK, check harness for short.

OK or NG

OK >> GO TO 6.

NG >> Repair harness or connector.

Ter minal

Voltage (V)

(Approx.)

(+)

(-)

Connector - Terminal Wire color

M64-2 L/Y Body ground 12V

WJIA0847E

Terminals Continuity

Connector -

Terminal

Wire color

Connector -

Terminal

Wire color

Yes

M64-2 L/Y M49-17 L/Y

Continuity should exist.

WJIA0848E