Nissan Altima HL32 Hybrid. Manual - part 949

RF-8

< FUNCTION DIAGNOSIS >

SUNROOF SYSTEM

FUNCTION DIAGNOSIS

SUNROOF SYSTEM

System Diagram

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SUNROOF

System Description

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SUNROOF SYSTEM

INPUT/OUTPUT SIGNAL CHART

SUNROOF OPERATION

• Sunroof motor assembly operates with the power supply that is output from BCM while ignition switch is ON

or retained power is operating.

• Tilt up/down & slide open/close signals from sunroof switch enables operate sunroof motor to move arbi-

trarily.

• Sunroof motor assembly receives a vehicle speed signal from combination meter and controls the sunroof

motor torque of tilt-down at the time of high speed operation.

AUTO OPERATION

Sunroof AUTO feature makes it possible to slide open and slide close or tilt up and tilt down the sunroof with-

out holding the sunroof switch in the slide open/tilt down or slide close/tilt up position.

RETAINED POWER OPERATION 

• Retained power operation is an additional power supply function that enables sunroof system to operate dur-

ing the 45 seconds even when ignition switch is turned OFF.

Retained power function cancel conditions

• Front door CLOSE (door switch OFF)

→OPEN (door switch ON).

• When ignition switch is ON again.

• When timer time passes. (45 seconds)

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Item

Input signal to sunroof motor assembly 

Sunroof motor function

Actuator

Sunroof switch

Sunroof switch signal (tilt down or slide 
open)

Sunroof control

Sunroof motor

Sunroof switch signal (tilt up or slide 
close)

Combination meter

Vehicle speed signal

BCM

RAP signal

SUNROOF SYSTEM

RF-9

< FUNCTION DIAGNOSIS >

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Component Parts Location

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Component Description

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1.

BCM  M16, M17, M18
(View with instrument panel removed)

2.

Sunroof switch R6

3.

Sunroof motor assembly R5 

4.

Front door switch LH B8, RH B108

5.

Combination meter M24

Component

Function

BCM

Supplies the power supply to sunroof motor assembly.

Sunroof switch

Transmits tilt up/down & slides open/close operation signal to sunroof motor assembly.

Sunroof motor assembly

It is sunroof motor and CPU integrated type that enables tilt up/down & slide open/close by sun-
roof switch operation

Front door switch

Detects door open/close condition and transmits to BCM.

Combination meter

Transmits vehicle speed signal to sunroof motor assembly.

RF-10

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

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ECU IDENTIFICATION

Displays the BCM part No.

SELF-DIAG RESULT

Refer to 

RF-52, "DTC Index"

.

RETAINED PWR
RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)

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DATA MONITOR

Monitor item

Description

DOOR SW-DR

Indicates [ON/OFF] condition of driver side door switch.

DOOR SW-AS

Indicates [ON/OFF] condition of passenger side door switch.

POWER SUPPLY AND GROUND CIRCUIT

RF-11

< COMPONENT DIAGNOSIS >

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COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

SUNROOF MOTOR ASSEMBLY
SUNROOF MOTOR ASSEMBLY : Description

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• BCM supplies power.

• CPU is integrated in sunroof motor assembly.

• Tilts up/down & slides open/close by sunroof switch operation.

• In order to close sunroof lid certainly with the signal from combination meter at the time of high speed run,

the sunroof motor torque at the time of tilt-down operation is controlled.

SUNROOF MOTOR ASSEMBLY : Component Function Check

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1.

 CHECK SUNROOF MOTOR FUNCTION

Do tilt up/down & slide open/close functions operate normally with sunroof switch?
Is the inspection result normal?

YES

>> Sunroof motor assembly is OK.

NO

>> Refer to 

RF-11, "SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure"

.

SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

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SUNROOF MOTOR ASSEMBLY

1.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect sunroof motor assembly.

3. Turn ignition switch ON.

4. Check voltage between sunroof motor assembly connector and

ground.

Is the measurement value within the specification?

YES

>> GO TO 2

NO

>> GO TO 3

2.

 CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between sunroof motor assembly connector

and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

3.

 CHECK SUNROOF MOTOR CIRCUIT

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Sunroof motor assembly 

connector

Terminal 

R5

7

Ground

Battery voltage

9

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Sunroof motor assembly 

connector

Terminal

Ground

Continuity 

R5

2

Yes

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