Infiniti M45 (Y34). Manual - part 500

ELECTRICAL LOAD SIGNAL

EC-689

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EC

5. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors B5, M5

●

Joint connector-19

●

Harness for open or short between rear window defogger and door mirror defogger relay and combination
meter

>> Repair open circuit or short to ground or short to power in harness or connectors.

6. 

CHECK COMBINATION METER

Refer to 

DI-6, "COMBINATION METERS"

 .

OK or NG

OK

>> GO TO 10.

NG

>> Replace combination meter.

7. 

CHECK HEADLAMP FUNCTION

1.

Start engine.

2.

Turn ON the lighting switch at 2nd position.

3.

Check that headlamp high beams are illuminated.

OK or NG

OK

>> GO TO 8.

NG

>> Check headlamp circuit. Refer to

LT-6, "HEADLAMP (FOR USA)"

  or 

LT-44, "HEADLAMP (FOR

CANADA) - DAYTIME LIGHT SYSTEM -"

 .

8. 

CHECK HEADLAMP INPUT SIGNAL CIRCUIT

1.

Stop engine.

2.

Disconnect headlamp battery saver control unit harness connector.

3.

Disconnect BCM harness connector.

4.

Disconnect combination meter harness connector.

5.

Check harness continuity between the following;
headlamp battery saver control unit terminals 2, 8 and combination meter terminal 26, 
BCM terminal 5 and combination meter terminal 26.
Refer to Wiring Diagram.

6.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 9.

9. 

DETECT  MALFUNCTIONING PART

Check the following.

●

Joint connector-9.

●

Harness for open or short between headlamp battery saver control unit and combination meter.

●

Harness for open or short between BCM and combination meter.

>> Repair open circuit or short to ground or short to power in harness or connectors.

Continuity should exist.

EC-690

ELECTRICAL LOAD SIGNAL

10. 

CHECK COMBINATION METER

Refer to 

DI-6, "COMBINATION METERS"

 .

OK or NG

OK

>> GO TO 11.

NG

>> Replace combination meter.

11. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-132, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

DATA LINK CONNECTOR

EC-691

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EC

DATA LINK CONNECTOR

PFP:24814

Wiring Diagram

ABS002UB

TBWA0316E

EC-692

EVAPORATIVE EMISSION SYSTEM

EVAPORATIVE EMISSION SYSTEM

PFP:14950

Description

ABS002UC

SYSTEM DESCRIPTION

The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the
engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the
engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is
proportionally regulated as the air flow increases.
EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and
idling.

SEF569XB