Audio: Overview Infiniti Q45 III

Refer to Owner's Manual for audio system operating instructions.

Power is supplied at all times

1. through 15A fuse [No. 52, located in the fuse, fusible link and relay block (J/B)]
2. to audio unit terminal 73
3. to CD auto changer terminal 12
4. through 30A fuse (No. J, located in the fuse, fusible link and relay box)
5. to BOSE speaker amp. terminal 11

With the ignition switch in the ACC or ON position, power is supplied

1. through 10A fuse [No. 21, located in the fuse block (J/B) No. 1]
2. to audio unit terminal 72 and BOSE speaker amp. terminal 34
3. to CD auto changer terminal 16
4. through 10A fuse [No. 4, located in the fuse block (J/B) No. 1]
5. to rear control cancel switch terminal 4.
6. through 10A fuse [No. 21, located in the fuse block (J/B) No. 1]
7. to rear control cancel relay terminal 3.

When rear control cancel switch is rear control position, power is supplied

1. through rear control cancel switch terminal 3
2. to rear control cancel relay terminal 2.

Ground is also supplied

1. to rear control cancel relay terminal 1
2. through body grounds B256 and B217.

Then rear control cancel relay is energized and power is supplied

1. through rear control cancel relay terminal 5
2. to rear control switch terminal 1.

When steering switch pushed ON, signal is sent

1. from steering switch terminal 2
2. through combination switch (spiral cable) terminals 19 and 25
3. to multi-function switch terminal 7, then
4. to audio unit.

Ground is supplied through the case of the audio unit.

Ground is also supplied to CD auto changer terminal 15 through body grounds M114 and M24.

Ground is also supplied to BOSE speaker amp. terminal 27 through body grounds B256 and B217.

Audio unit is connected to BOSE speaker amp. as DATA LINE.

When the audio unit is turned to the ON position, audio signals are supplied.

1. through audio unit terminals 12, 11
2. to BOSE speaker amp. terminals 5, 6.

When the audio unit is turned to the ON position, audio sound signals are supplied.

1. through terminals 79, 80, 81 and 82 of audio unit
2. to terminals 39, 40, 38 and 41 of the BOSE speaker amp.
3. through terminals 30, 14, 18, 19, 23, 22, 13, 29, 21, 20, 16, 17, 25, 24, 28 and 12 of the BOSE speaker amp.
4. to instrument panel speakers and the front and rear door speakers and woofer terminals 1 and 2.

DESCRIPTION

1. Diagnosis function consists of the self-diagnosis mode, and the "CONFIRMATION/ADJUSTMENT" mode.
2. Self-diagnosis mode checks for connection among audio unit, and CD auto changer and analyzes each unit, then displays the results.
3. "CONFIRMATION/ADJUSTMENT" function analyzes each speaker. (without navigation system)

Scheme 1

OPERATION PROCEDURE

1. To start the self-diagnosis mode and to check the diagnosis result, refer to "SELF-DIAGNOSIS MODE " for models with navigation system, and "SELF-DIAGNOSIS MODE " for vehicles without navigation system.

Scheme 2

Scheme 3

Scheme 4

Scheme 5

1. Start the engine.
2. Turn the audio system off.
3. While pressing the "INFO" switch, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When self-diagnosis mode is aggravated, a short beep will be heard.) To return to the previous screen, press "PREV" switch.
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis" and "Confirmation/Adjustment" will become selective.
5. When "Confirmation/Adjustment" is selected on the trouble diagnosis screen, the operation will enter the Confirmation/Adjustment mode. In this mode, check and adjustment of each item will become possible.
6. When "Speaker Test" is selected, the speaker diagnosis screen will be shown. Then press "Start/Next" and the test tone will be tone will be emitted from one speaker. Press "Start/Next" again and the test tone will be emitted from another speaker. Press "Stop" and the test tone will be stopped. NOTE: Test tones emitted from each speaker are as follows. Instrument : 1 KHz speaker Door speaker : 1 KHz Woofer : 100 Hz