Nissan Frontier. Instruction — part 1147

SN

REAR SONAR SYSTEM

SN-5

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

SYSTEM DESCRIPTION

REAR SONAR SYSTEM

System Diagram

INFOID:0000000009480099

System Description

INFOID:0000000009480100

FUNCTION

With power and ground supplied, transmission gear selector lever in R position, and the sonar system OFF

switch ON, the rear sonar system will detect obstacles within 1.8 m (5.9 ft.) of the rear sonar sensors. The

vehicle operator is notified of obstacles by varied rate of tone from the rear sonar buzzer depending on dis-

tance of obstacle being sensed.

SONAR SYSTEM OFF SWITCH

With power and ground supplied to the sonar control unit, transmission gear selector lever in R position, the

sonar system can be disabled and the sonar buzzer silenced by momentarily pressing the sonar system OFF

switch. The sonar system OFF indicator lamp will be illuminated in the sonar system OFF switch.

The rear sonar system and buzzer will be disabled and the sonar system OFF indicator will be illuminated until

the ignition switch is turned OFF. When the ignition switch is turned ON, the rear sonar system will be enabled.

Depressing the sonar system OFF switch again will enable the rear sonar system also. Enabling the rear

sonar system will cause the rear sonar system OFF indicator to go out. If the sonar control unit detects a mal-

function in the system it will turn off the sonar system and the indicator lamp will turn on.

REAR SONAR BUZZER

With power and ground supplied to the sonar control unit and the A/T selector lever in R position, a stationary

object that is at least 7.0 cm (2.8 in.) wide and 1.0 m (39.0 in.) tall and that is closer than 1.8 m (5.9 ft.) will be

detected by the rear sonar sensors, causing the rear sonar buzzer to sound a tone. As the vehicle moves

closer to the object, the rate of the tone will increase. When the object is less than 25.0 cm (10 in.) from the

rear bumper, the tone will sound continuously.

REAR SONAR SENSORS

With power and ground supplied to the rear sonar sensors, the sonar sensors transmit an ultrasonic signal.

This signal is reflected back to the sensor by objects large enough and close enough to be detected. The rear

sonar sensors measure the time from the transmitted signal to the time the signal is reflected back and sends

this information to the sonar control unit.

BACK-UP LAMP RELAY (WITH A/T)

The back-up lamp relay provides a reverse signal to the sonar control unit.

BACK-UP LAMP SWITCH (WITH M/T)

The back-up lamp switch provides a reverse signal to the sonar control unit.

AWNIA3304GB

SN-6

< SYSTEM DESCRIPTION >

REAR SONAR SYSTEM

Component Parts Location

INFOID:0000000009480101

Component Description

INFOID:0000000009480102

1.

Sonar control unit M93 (above left low-
er dash side finisher)

2.

Rear sonar buzzer M92 (view with
combination meter removed)

3.

Sonar system OFF switch M94

4.

Back-up lamp relay E45 (with A/T)

5.

Back-up lamp switch F69 (with M/T)

6.

Rear sonar sensor LH outer C227

7.

Rear sonar sensor LH inner C228

8.

Rear sonar sensor RH inner C229

9.

Rear sonar sensor RH outer C230

10.

A/T assembly F9 (with A/T)

ALNIA1500ZZ

Component

Function

Sonar control unit

Controls sonar system and provides self-diagnosis

Back-up lamp relay (with A/T)

Provides reverse signal for sonar control unit

Back-up lamp switch (with M/T)

Provides reverse signal for sonar control unit

A/T assembly

Controls back-up lamp relay

SN

REAR SONAR SYSTEM

SN-7

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Self-Diagnosis Function

INFOID:0000000009480103

NOTE:

Always perform Preliminary Check before running Self-Diagnosis Function. Refer to

SN-4, "Preliminary

Check"

.

There are four modes of self-diagnosis. These modes must be followed in the following order:

1. Entering diagnostics mode

2. Requesting number of fault codes mode

3. Requesting fault codes mode

4. Clearing fault codes mode

Self-diagnosis can be instructionly exited by turning the ignition OFF or selecting reverse gear. Self-diagnosis will

exit unless a fault code request occurs before a message is repeated five times without acknowledgement.

ENTERING DIAGNOSTICS MODE

1. Turn ignition switch ON. Sonar system OFF switch indicator

lamp illuminates for three seconds and then turns off.

2. Immediately push sonar system OFF switch ten times within five

seconds.

3. The rear sonar buzzer will sound once and the sonar system

OFF indicator will flash once.

REQUESTING NUMBER OF FAULT CODES MODE

1. While in "entering diagnostic mode", push sonar system OFF

switch once within 30 seconds of entering diagnostic mode.

NOTE:

If the number of fault codes is not requested within 30 seconds

after entering diagnostic mode, the system will return to regular

operation mode.

2. The rear sonar buzzer will sound once.
3. Sonar system OFF indicator will flash once and rear sonar

buzzer will sound once for each fault code detected.

4. There will be a four second pause.
5. The number of fault codes will repeat five times then pause.

NOTE:

Self-diagnosis will exit unless "requesting fault codes mode" occurs before five repeats ends.

REQUESTING FAULT CODES MODE

Rear sonar buzzer

Sounds a signal when objects are detected in the rear of the vehicle

Sonar system OFF switch

Enables the driver to turn system off and signals a system malfunction

Sonar sensor

Senses objects in the rear of the vehicle

Component

Function

LKIA0389E

LKIA0388E

SN-8

< SYSTEM DESCRIPTION >

REAR SONAR SYSTEM

1. While in "requesting number of fault codes" mode, push sonar

system OFF switch once.

2. The rear sonar buzzer will sound once.
3. Sonar system OFF indicator will flash and rear sonar buzzer will

sound the first digit of the fault code followed by a one second

pause.

4. Sonar system OFF indicator will flash and rear sonar buzzer will

sound the second digit of the fault code followed by a four sec-

ond pause.

5. Each fault code will repeat five times then pause.
6. Write down each fault code. Then, acknowledge the fault code

by pushing the sonar system OFF switch once (the rear sonar buzzer may sound).

NOTE:

"Requesting fault codes mode" will exit unless the fault code is acknowledged before it is repeated five

times. When all fault codes have been indicated, "clearing fault codes mode" will be entered. Refer to

SN-15, "DTC Index"

.

CLEARING FAULT CODES MODE

NOTE:

While in "clearing fault codes mode", self-diagnosis will automatically exit if no activity occurs for 30 seconds.
1. Push and hold sonar system OFF switch for three seconds to

reset time-out counter.

2. Push and hold sonar system OFF switch for three seconds to

clear codes.

LKIA0390E

LKIA0391E