Nissan Altima L32. Manual - part 691

EXL-48

< COMPONENT DIAGNOSIS >

PARKING LAMP CIRCUIT

PARKING LAMP CIRCUIT

Description

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The IPDM E/R (intelligent power distribution module engine room) controls the tail lamp relay based on inputs

from the BCM over the CAN communication lines. When the tail lamp relay is energized, power flows through

fuses 46 and 47, located in the IPDM E/R. Power then flows to the front and rear combination lamps.

Component Function Check

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1.

CHECK PARKING LAMP OPERATION

WITHOUT CONSULT-III

1. Activate IPDM E/R auto active test. Refer to 

PCS-14, "Diagnosis Description"

.

2. Check that the parking lamp is turned ON.

CONSULT-III 

1. Select "EXTERNAL LAMP" of IPDM E/R active test item.

2. With operating the test items, check that the parking lamp is turned ON.

Is the parking lamp turned ON?

YES

>> Parking lamp circuit is normal.

NO

>> Refer to 

EXL-48, "Diagnosis Procedure"

.

Diagnosis Procedure

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1.

CHECK PARKING LAMP FUSES

1. Turn the ignition switch OFF.

2. Check that the following fuses are not open.

Is the fuse open?

YES

>> Repair the harness and replace the fuse.

NO

>> GO TO 2

2.

CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)

CONSULT-III

TAIL

: Parking lamp ON

OFF

: Parking lamp OFF

Unit

Location

Fuse No.

Capacity

Parking lamps (front) 

IPDM E/R

46

10A

Parking lamps (rear) 

IPDM E/R

47

10A

PARKING LAMP CIRCUIT

EXL-49

< COMPONENT DIAGNOSIS >

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1. Turn the ignition switch OFF.

2. Disconnect the front and rear combination lamp connectors.

3. Turn the ignition switch ON.

4. Select "EXTERNAL LAMP" of IPDM E/R active test item.

5. With EXTERNAL LAMP ON, check the voltage between the

combination lamp connector and ground.

Is battery voltage present?

YES

>> GO TO 4

NO

>> GO TO 3

3.

CHECK PARKING LAMP CIRCUIT (OPEN)

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R connector.

3. Check continuity between the IPDM E/R harness connector and

the combination lamp harness connector.

Does continuity exist?

YES

>> GO TO 4

NO

>> Repair the harnesses or connectors.

4.

CHECK PARKING LAMP GROUND CIRCUIT

(+)

(

−)

Voltage

Connector

Terminal

Front

A: E218, E225

8

Ground

Battery voltage

Rear

B: B30, B45

2

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Connector

Terminal

Connector

Terminal

Continuity

Front

A: E201

91, 92

B: E218, E225

8

Yes

Rear

C: E18

7

D: B30, B45

2

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EXL-50

< COMPONENT DIAGNOSIS >

PARKING LAMP CIRCUIT

1. Disconnect the combination lamp connector.

2. Check continuity between the combination lamp harness con-

nector terminal and ground.

Does continuity exist?

YES

>> Inspect the parking lamp bulb.

NO

>> Repair the harness.

Connector

Terminal

—

Continuity

Front

A: E218, E225

9

Ground

Yes

Rear

B: B30, B45

5

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TURN SIGNAL LAMP CIRCUIT

EXL-51

< COMPONENT DIAGNOSIS >

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TURN SIGNAL LAMP CIRCUIT

Description

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The BCM monitors inputs from the combination switch to determine when to activate the turn signals. The

BCM outputs voltage direction to the left and right turn signals during turn signal operation or both during haz-

ard warning operation. The BCM sends a turn signal indicator request to the combination meter via the CAN

communication lines. 

The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is

open.

NOTE:

Turn signal lamp blinks at normal speed when using the hazard warning lamp.

Component Function Check

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1.

CHECK TURN SIGNAL LAMP

CONSULT-III

1. Select "FLASHER" of BCM (FLASHER) active test item.

2. With operating the test items, check that the turn signal lamp blinks.

Does the turn signal lamp blink?

YES

>> Turn signal lamp circuit is normal.

NO

>> Refer to 

EXL-51, "Diagnosis Procedure"

.

Diagnosis Procedure

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1.

CHECK TURN SIGNAL LAMP BULB

Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?

YES

>> GO TO 2

NO

>> Replace the bulb.

2.

CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE

1. Turn the ignition switch OFF.

2. Disconnect the front combination lamp connector, the door mirror connector and the rear combination

lamp connector.

3. Turn the ignition switch ON.

4. With operating the turn signal switch, check the voltage between

the BCM harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

LH

: Turn signal lamp LH blinking 

RH

: Turn signal lamp RH blinking 

OFF

: The turn signal lamp OFF

(+)

(

−)

Voltage

Connector

Terminal

 RH

M17

17

Ground

LH

M17

18

ALLIA0182ZZ

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