Nissan Teana J32. Instruction — part 748

INT-12

< COMPONENT DIAGNOSIS >

REVERSE SIGNAL CIRCUIT

REVERSE SIGNAL CIRCUIT

Description

INFOID:0000000003866177

Reverse input signal is sent to rear sunshade control unit.

Component Function Check

INFOID:0000000003866178

1.

CHECK REVERSE INPUT SIGNAL

Check when shifting the selector lever to the R position with the rear sunshade moved to the downward posi-
tion.
Is the inspection result normal?

YES

>> Reverse input signal is OK.

NO

>> Refer to

INT-12, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003820127

1.

CHECK REAR SUNSHADE CONTROL UNIT REVERSE INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear sunshade control unit connector.

3.

Turn ignition switch ON.

4.

Shift selector lever to the R position.

5.

Check voltage between rear sunshade control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace rear sunshade control unit. Refer to

INT-61, "Removal and Installation"

.

NO

>> Check back up lamp circuit. Refer to

EXL-274, "Wiring Diagram - BACK-UP LAMP -"

.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear sunshade control unit

Connector

Terminal

B93

7

Ground

Selector lever

R position

Battery voltage

Other than

0

REAR SUNSHADE CONTROL UNIT

INT-13

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

INT

N

O

P

ECU DIAGNOSIS

REAR SUNSHADE CONTROL UNIT

Reference Value

INFOID:0000000003819279

TERMINAL LAYOUT

PHYSICAL VALUES

JMJIA1837ZZ

Terminal No.

Description

Condition

Voltage (V)

(Approx.)

(+)

(–)

Signal name

Input/

Output

1

(B)

Ground

Switch ground

—

—

0

2

(GR)

Ground

Rear sunshade motor operates down
signal

Output

When rear sunshade switch is oper-
ated DOWN

Battery voltage

3

(R)

Ground

Rear sunshade motor operates up sig-
nal

Output

When rear sunshade switch is oper-
ated UP

Battery voltage

4

(B)

Ground

Ground

—

—

0

5

(V)

Ground

Rear sunshade up signal

Output

Ignition switch ON

Battery voltage

Sunshade switch UP
(When the switch is pressed)

0

6

(BR)

Ground

Rear sunshade down signal

Output

Ignition switch ON

Battery voltage

Sunshade switch DOWN
(When the switch is pressed)

0

7

(R)

Ground

Reverse signal

Input

Self lever is in the R position

Battery voltage

Other than above

0

8

(SB)

Ground

Ignition power supply

Input

Ignition switch ON

Battery voltage

INT-14

< ECU DIAGNOSIS >

REAR SUNSHADE CONTROL UNIT

Wiring Diagram - REAR SUNSHADE CONTROL SYSTEM -

INFOID:0000000003959689

JCJWM0310GB

REAR SUNSHADE CONTROL UNIT

INT-15

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

INT

N

O

P

JCJWM0311GB