Nissan Altima HL32 Hybrid. Instruction - part 18

AV-64

< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (AUDIO UNIT)

DIAGNOSIS SYSTEM (AUDIO UNIT)

Diagnosis Description

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Self-diagnosis mode can check the following items.

• Audio unit hardware/software versions

• Continuity of each speaker channel

• Continuity of each audio unit switch

OPERATION PROCEDURE

1. Turn ignition switch to the ACC position.

2. Turn the audio unit off.

3. While pressing the “AUDIO” button, turn the volume control dial

clockwise or counterclockwise 30 clicks or more. When the self-

diagnosis mode is started, a short beep will be heard.

4. Initially, all display segments will be illuminated.

Version Check

1. Press the “AUDIO” switch to enter version diagnostics. “Soft-

ware” (audio software version) is displayed.

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DIAGNOSIS SYSTEM (AUDIO UNIT)

AV-65

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2. Press the “AUDIO” switch again to display the “Hardware”

(audio hardware version).

3. Press the “AUDIO” switch again to display the “CD Mech” (CD

mechanism version).

4. Press the “AUDIO” switch again to display the “SDARS” (satel-

lite radio version).

Channel Check Diagnostics

When all segments are illuminated, press the “TUNE” up switch to

enter channel check diagnostics. The self-diagnostic function will

then send a tone to each channel (FL, RL, RR, FR) for 1 second.

Button Check Diagnostics

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AV-66

< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (AUDIO UNIT)

When all segments are illuminated, press the “TUNE” down switch to

enter button check diagnostics. When each audio unit switch is

pressed, a tone will sound and the switch name will be displayed.

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DIAGNOSIS SYSTEM (BLUETOOTH CONTROL UNIT)

AV-67

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DIAGNOSIS SYSTEM (BLUETOOTH CONTROL UNIT)

Diagnosis Description

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The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically

every ignition cycle during control unit initialization. The second diagnostic check is performed by the techni-

cian using the steering wheel audio control switches prior to trouble diagnosis.

BLUETOOTH CONTROL UNIT INITIALIZATION CHECKS

• Internal control unit failure

• Bluetooth antenna connection open or shorted

• Steering wheel audio control switches (SEND/END) stuck closed

• Vehicle speed pulse count

• Microphone connection test (with playback to operator)

• Bluetooth inquiry check

OPERATION PROCEDURE

1. Turn ignition switch to ACC or ON.

2. Wait for the Bluetooth system to complete initialization. This may take up to 10 seconds.

3. Press and hold the steering wheel audio control switch SEND

button for at least 5 seconds. The Bluetooth system will begin to

play a verbal prompt.

4. While the prompt is playing, press and hold the steering wheel

audio control switch END button until you hear the “Diagnostics

mode” prompt. The Bluetooth system will sound a 5 second

beep.

5. While the beep is sounding, press and hold the steering wheel

audio control switch END button again until you hear prompts.

6. The Bluetooth system has now entered into the diagnostic

mode. Results of the diagnostic checks will be verbalized to the

technician. Refer to 

AV-67, "Work Flow"

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7. After the failure records are reported, an interactive microphone

test will be performed. Follow the voice prompt. If the micro-

phone test fails refer to 

AV-67, "Work Flow"

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8. Self-diagnosis mode is complete when the voice prompt says “All diagnostic functions completed”.

Work Flow

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Failure Message

Action

“Internal failure”

Replace Bluetooth control unit. Refer to 

AV-145, "Removal and Installation"

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“Bluetooth antenna open”

1.

Inspect harness connection.

2.

Replace Bluetooth antenna. Refer to 

AV-144, "Removal and Installation"

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“Bluetooth antenna shorted”

“Phone/Send for Hands Free System is stuck”

Check steering wheel audio control switches. Refer to 

AV-88, "Diagnosis Proce-

dure"

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“Phone/End for the Hands Free System is stuck”

“Microphone test” (failed interactive test)

1.

Inspect harness between Bluetooth control unit and microphone.

2.

Replace microphone. Refer to 

AV-143, "Removal and Installation"

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