Nissan Titan. Manual - part 490

RF-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

Inspection End>>GO TO 4

4.

 DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS

Detect malfunctioning system according to symptom diagnosis based on the confirmed symptom in step 2,

and determine the trouble diagnosis order based on possible causes and symptom.

>> GO TO 5

5.

 DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the system.

NOTE:

The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also

required for the circuit check in the Diagnostic Procedure.
Is malfunctioning part detected?

YES

>> GO TO 6

NO

>> Check voltage of related BCM terminals using CONSULT.

6.

 REPAIR OR REPLACE THE MALFUNCTIONING PART

1. Repair or replace the malfunctioning part.

2. Reconnect parts or connectors disconnected during Diagnostic Procedure.

>> GO TO 7

7.

 FINAL CHECK

When symptom was described from the customer, refer to confirmed symptom in step 2, and check that the

symptom is not detected.
Does the symptom reappear?

YES (DTC is detected)>>GO TO 5

YES (Symptom remains)>>GO TO 3

NO

>> Inspection End.

INSPECTION AND ADJUSTMENT

RF-5

< BASIC INSPECTION >

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000009879045

MEMORY RESET PROCEDURE

1. Please observe the following instructions at confirming the sunroof operation.

NOTE:

Do not disconnect the electronic power while the sunroof is operating or within 5 seconds after the sunroof

stops. (to wipe-out the memory of lid position and operating friction.)

2. Initialization of system should be conducted after the following conditions.

• When the sunroof motor is changed.

• When the sunroof does not operate normally. (Incomplete initialization conditions)

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

INFOID:0000000009879046

INITIALIZATION PROCEDURE

If the sunroof does not close or open automatically, use the following procedure to return sunroof operation to

normal.

1. Turn ignition switch ON.

2. Push and hold the sunroof tilt switch in the forward (DOWN) position until the sunroof is fully closed.

3. After the sunroof has closed all the way, push and hold the tilt switch forward (DOWN) again for more than

2 seconds to re-learn motor position.

4. Initialization is complete if the sunroof operates normally. 

BASIC INSPECTION
BASIC INSPECTION : Special Repair Requirement

INFOID:0000000009879047

BASIC INSPECTION

1.

INSPECTION START

1. Check the service history.

2. Check the following parts.

• Fuse/circuit breaker blown.

• Poor connection, open or short circuit of harness connector.

• Battery voltage.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace the malfunctioning parts.

RF-6

< SYSTEM DESCRIPTION >

SUNROOF SYSTEM

SYSTEM DESCRIPTION

SUNROOF SYSTEM

System Diagram

INFOID:0000000009879048

SUNROOF

System Description

INFOID:0000000009879049

SUNROOF SYSTEM

INPUT/OUTPUT SIGNAL CHART

SUNROOF OPERATION

• The sunroof motor assembly operates with a power supply that is output from the BCM while the ignition

switch is ON or retained power is operating.

• The tilt up/down & slide open/close signals from the sunroof switch enable the sunroof motor to move arbi-

trarily.

AUTO OPERATION

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

without 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 the sunroof system to operate

up to 45 seconds after the ignition switch is turned OFF.

Retained power function cancel conditions

• When a front door is opened (door switch ON)

• When ignition switch is turned ON again.

• When 45 seconds elapse on the timer.

ALKIA0861GB

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)

BCM

RAP signal

SUNROOF SYSTEM

RF-7

< SYSTEM DESCRIPTION >

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Component Parts Location

INFOID:0000000009879050

Component Description

INFOID:0000000009879051

ALKIA0867ZZ

1.

Sunroof switch R104

2.

Sunroof motor assembly R4 

3.

BCM  M18, M19, M20
(View with instrument panel re-
moved)

4.

Front door switch LH B8, RH B108

Component

Function

BCM

Supplies power to the sunroof motor assembly.

Sunroof switch

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

Sunroof motor assembly

The sunroof motor and integrated CPU enables tilt up/down & slide open/close as requested by 
the sunroof switch.

Front door switch

Detects door open/close condition and transmits to BCM.