Sonar System: Overview Nissan Armada I рестайлинг

DESCRIPTION

The purpose of the sonar sensor preliminary check is to confirm that there are no outside factors affecting the sonar system.

Component Description

COMPONENT DESCRIPTION

Self-Diagnosis Function

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 manually 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 acknowledgment.

Scheme 94

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 sonar buzzer will sound once and the sonar system OFF indicator will flash once.

Scheme 95

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

Scheme 96

1. While in "requesting number of fault codes" mode, push sonar system OFF switch once.
2. The sonar buzzer will sound once.
3. Sonar system OFF indicator will flash and 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 sonar buzzer will sound the second digit of the fault code followed by a four second 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 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 " «DTC INDEX»(ref-382212-S34970375162011011400000) ".

COMPONENT DESCRIPTION SPECIFICATION

With power and ground supplied to the 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 sonar sensors measure the time from the transmitted signal to the time the signal is reflected back and send this information to the sonar control unit.

Scheme 97

Scheme 98

1. CHECK REAR SONAR SENSOR CIRCUITS Turn ignition switch OFF. Disconnect sonar control unit connector and rear sonar sensor connectors. Check continuity between sonar control unit harness connector (A) and rear sonar sensor harness connectors (B). CONTINUITY SPECIFICATION Connector Terminal Connector Terminal Continuity B24 (A) 16 C102, C103, C104, C105 (B) 1 Yes 15 3 9, 10, 11, 12 2 Check continuity between sonar control unit harness connector and ground. CONTINUITY SPECIFICATION Connector Terminal Continuity B24 9, 10, 11, 12, 15, 16 Ground No Are the inspection results normal? YES: Inspection End. NO: Repair harness or connector.

Scheme 99

Scheme 100

1. CHECK SONAR SENSOR CIRCUITS Turn ignition switch OFF. Disconnect sonar control unit connectors and sonar sensor connectors. Check continuity between sonar control unit harness connectors (A, B) and sonar sensor harness connectors (C). CONTINUITY SPECIFICATION Connector Terminal Connector Terminal Continuity B56 (A) 9 C102, C103, C104, C105 1 Yes 12 3 13, 14, 15, 16 2 B57 (B) 17 E158, E162, E163, E166 1 26 3 19, 20, 24, 25 2 Check continuity between sonar control unit harness connectors (A, B) and ground. CONTINUITY SPECIFICATION Connector Terminal Continuity B56 (A) 9, 12, 13, 14, 15, 16 Ground No B57 (B) 17, 19, 20, 24, 25, 26 Are the inspection results normal? YES: Inspection End. NO: Repair harness or connector.

When the A/T selector lever is not it park or neutral, a stationary object will be detected by the sonar sensors causing the front or 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 very close to the vehicle, the tone will sound continuously.

Scheme 101

Scheme 102

1. CHECK SONAR BUZZER Refer to " «COMPONENT INSPECTION»(ref-382212-S12837622622011011400000) ". Is the inspection result normal? YES: GO TO 2 . NO: Replace sonar buzzer. Refer to " «REMOVAL AND INSTALLATION»(ref-382212-S28351458342011011400000) ".
2. CHECK SONAR BUZZER CIRCUITS Turn ignition switch OFF. Disconnect sonar control unit connector and sonar buzzer connector. Check continuity between sonar control unit harness connector (A) and sonar buzzer harness connector (B). CONTINUITY SPECIFICATION Connector Terminal Connector Terminal Continuity B24 (A) 3 M47 (B) 2 Yes 7 1 Check continuity between sonar control unit harness connector and ground. CONTINUITY SPECIFICATION Connector Terminal Continuity B24 3, 7 Ground No Are the inspection results normal? YES: Inspection End. NO: Repair harness or connector.

Scheme 103

Scheme 104

1. CHECK BUZZERS Refer to " «COMPONENT INSPECTION»(ref-382212-S12837622622011011400000) ". Is the inspection result normal? YES: GO TO 2 . NO: Replace buzzer. Refer to " «REMOVAL AND INSTALLATION»(ref-382212-S28351458342011011400000) ".
2. CHECK BUZZER CIRCUITS Turn ignition switch OFF. Disconnect sonar control unit connectors and sonar buzzer connectors. Check continuity between sonar control unit harness connectors (A, B) and sonar buzzer harness connectors (C). CONTINUITY SPECIFICATION Connector Terminal Connector Terminal Continuity B56 (A) 2 B166, M118 (C) 1 Yes 6 B166 (C) 2 B57 (B) 23 M118 (C) Check continuity between sonar control unit harness connectors (A, B) and ground. CONTINUITY SPECIFICATION Connector Terminal Continuity B56 (A) 2, 6 Ground No B57 (B) 23 Are the inspection results normal? YES: Inspection End. NO: Repair harness or connector.

Scheme 105

1. Disconnect the sonar buzzer connector.
2. Check continuity between sonar buzzer terminals 1 and 2. 1 - 2 : Continuity should exist

The sonar system can be disabled by momentarily pressing the sonar system OFF switch. The sonar system OFF indicator lamp will be illuminated when the sonar system is OFF. Enabling the sonar system will cause the sonar system OFF indicator to go out. The indicator will flash if a malfunction exists in the system.

Scheme 106

Scheme 107

1. CHECK SONAR SYSTEM OFF SWITCH Refer to " «COMPONENT INSPECTION»(ref-382212-S22131865492011011400000) ". Is the inspection result normal? YES: GO TO 2 . NO: Replace sonar system OFF switch. Refer to " «REMOVAL AND INSTALLATION»(ref-382164-S18697214542011011400000) ".
2. CHECK SONAR SYSTEM OFF SWITCH CIRCUITS Turn ignition switch OFF. Disconnect sonar control unit connector and sonar system OFF switch connector. Check continuity between sonar control unit harness connector (A) and sonar system OFF switch harness connector (B). CONTINUITY SPECIFICATION Connector Terminal Connector Terminal Continuity B24 (A) 4 M116 (B) 5 Yes 13 1 Check continuity between sonar system OFF switch harness connector and ground. CONTINUITY SPECIFICATION Connector Terminal Continuity M116 1, 5 Ground No 2, 6 Yes Are the inspection results normal? YES: Inspection End. NO: Repair harness or connector.

Scheme 108

Scheme 109

1. CHECK SONAR SYSTEM OFF SWITCH Refer to " «COMPONENT INSPECTION»(ref-382212-S22131865492011011400000) ". Is the inspection result normal? YES: GO TO 2 . NO: Replace sonar system OFF switch. Refer to " «REMOVAL AND INSTALLATION»(ref-382164-S18697214542011011400000) ".
2. CHECK SONAR SYSTEM OFF SWITCH CIRCUITS Turn ignition switch OFF. Disconnect sonar control unit connector and sonar system OFF switch connector. Check continuity between sonar control unit harness connector (A) and sonar system OFF switch harness connector (B). CONTINUITY SPECIFICATION Connector Terminal Connector Terminal Continuity B56 (A) 5 M116 (B) 5 Yes 11 1 Check continuity between sonar system OFF switch harness connector and ground. CONTINUITY SPECIFICATION Connector Terminal Continuity M116 1, 5 Ground No 2, 6 Yes Are the inspection results normal? YES: Inspection End. NO: Repair harness or connector.

Scheme 110

1. Disconnect the sonar system OFF switch connector.
2. Check continuity between the following switch terminals. CONTINUITY SPECIFICATION Sonar system OFF switch Terminals Continuity Depressed 1 - 2 Yes Released No

Scheme 111

1. Disconnect the sonar system OFF switch connector.
2. Apply battery voltage to switch terminal 5.
3. Check the sonar system OFF indicator operation when switch terminal 6 is connected to battery ground. BATTERY VOLTAGE SPECIFICATION Terminals Condition Operation Sonar system OFF switch 5 Battery voltage Indicator ON 6 Ground

Scheme 112

OPERATION PROCEDURE

1. Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
2. Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables disconnected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.