Sunroof / Moonroof: Description and Operation

System Description

OUTLINE
Electric sunroof system consists of
- Sunroof switch
- Sunroof motor assembly
- Front door switches
- BCM (body control module)

BCM supplies power to the sunroof motor. Sunroof operation depends on sunroof switch position.

OPERATION
Power is supplied at all times
- through 50 A fusible link (letter f, located in the fuse and fusible link box)
- to BCM terminal 70, and
- through BCM terminal 69
- to sunroof motor assembly terminal 5.

With ignition switch in ON or START position, power is supplied
- through 10 A fuse (No. 59, located in the fuse and relay box)
- to BCM terminal 38.

Ground is supplied
- to BCM terminal 67 and
- to sunroof motor assembly terminal 7
- through grounds M57, M61 and M79.

TILT UP OPERATION
When the tilt switch is operated for tilt up, ground is supplied
- to sunroof motor assembly terminal 4
- through sunroof switch terminal 4
- through sunroof switch terminal 2
- through sunroof motor assembly terminal 8
- through grounds M57, M61 and M79.

Then, the sunroof will tilt up.

TILT DOWN OPERATION
When the tilt switch is operated for tilt down, ground is supplied
- to sunroof motor assembly terminal 10
- through sunroof switch terminal 6
- through sunroof switch terminal 2
- through sunroof motor assembly terminal 8
- through grounds M57, M61 and M79.

Then, the sunroof will tilt down.

SLIDE OPEN OPERATION
When the switch is operated for slide open, ground is supplied
- to sunroof motor assembly terminal 9
- through sunroof switch terminal 3
- through sunroof switch terminal 2
- through sunroof motor assembly terminal 8
- through grounds M57, M61 and M79.

Then, the sunroof will slide open.

SLIDE CLOSE OPERATION
When the switch is operated for slide close, ground is supplied
- to sunroof motor assembly terminal 3
- through sunroof switch terminal 1
- through sunroof switch terminal 2
- through sunroof motor assembly terminal 8
- through grounds M57, M61 and M79.

Then, the sunroof will slide closed.

RETAINED POWER OPERATION
When the ignition switch is turned to OFF position from ON or START position, power is supplied for 45 seconds.

The retained power operation is canceled when the driver or passenger side door is opened.
RAP signal period can be changed by CONSULT-II. Refer to "CONSULT-II Function (BCM)".

MEMORY RESET PROCEDURE
If the battery is disconnected, or the sunroof motor harness connector is disconnected, the slide switch will become inoperable and the sunroof motor memory must be reset. To reset the sunroof motor memory from any sunroof position (full open, partially open, closed, partially vented, and vented), push and hold the sunroof tilt switch in the forward (DOWN) position until the sunroof is fully closed. After it has closed all the way, push and hold the tilt switch forward (DOWN) for more than 2 seconds to re-establish the motor preset position. The sunroof should then operate normally.

INTERRUPTION DETECTION FUNCTION
The CPU (central processing unit) monitors the sunroof motor operation and the sunroof position (fully-closed or other) by the signals from the sunroof motor.

When sunroof motor detects an interruption during the given sliding close operations, sunroof switch controls the motor for open and the sunroof will operate until it reaches full open position.
- automatic close operation when ignition switch is in the ON position.
- automatic close operation during retained power operation.

CAN Communication System Description
Refer to "INFORMATION BUS".