Nissan Maxima. Manual — part 96
AV-204
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (AV CONTROL UNIT)
SELECTION FROM MENU
Allows the technician to select which vehicle signals should be displayed and displays the status of the
selected vehicle signals.
WORK SUPPORT
CONFIGURATION
Configuration has three functions as follows.
ILLUM SIG
On
Block the light beam from the auto
light optical sensor when the light
SW is ON.
—
Off
Expose the auto light optical sensor
to light when the light SW is OFF or
ON.
IGN SIG
On
Ignition switch ON
Off
Ignition switch in ACC position
REV SIG
On
Selector lever in R position
Changes in indication may be delayed. This is
normal.
Off
Selector lever in any position other
than R
Display Item
Display
Vehicle status
Remarks
Item to be selected
Description
VHCL SPD SIG
The same as when “ALL SIGNALS” is selected.
PKB SIG
ILLUM SIG
IGN SIG
REV SIG
Conditions
Description
ST ANGLE SENSOR ADJUSTMENT
Steering angle sensor neutral position adjustment can be per-
formed. Refer to
BRC-6, "ADJUSTMENT OF STEERING ANGLE
SENSOR NEUTRAL POSITION : Description"
Function
Description
READ CONFIGURATION
• Reads the vehicle configuration of current AV control unit.
• Saves the read vehicle configuration.
WRITE CONFIGURATION-Manual selection
Writes the vehicle configuration with manual selection.
WRITE CONFIGURATION-Config file
Writes the vehicle configuration with saved data.
AV
DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)
AV-205
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)
Diagnosis Description
INFOID:0000000010064831
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 [
(PHONE/SEND),
(PHONE/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 20 seconds.
3. Press and hold the steering wheel audio control switch
(PHONE/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 (PHONE/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
(PHONE/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
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
.
Work Flow
INFOID:0000000010064832
AWNIA1979ZZ
AWNIA1980ZZ
Failure Message
Action
“Internal failure”
Replace Bluetooth
®
control unit. Refer to
AV-333, "Removal and Installation"
.
“Bluetooth
®
antenna open”
1.
Inspect harness connection.
2.
Replace Bluetooth
®
antenna. Refer to
AV-332, "Removal and Installation"
“Bluetooth
®
antenna shorted”
“Phone/Send for Hands Free System is stuck”
Check steering wheel audio control switches. Refer to
.
“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-331, "Removal and Installation"
.
AV-206
< DTC/CIRCUIT DIAGNOSIS >
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U1000 CAN COMM CIRCUIT
DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000010064833
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped on a vehicle and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each
control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000010064834
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000010064835
1.
PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of “AV Control Unit”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to “LAN system”. Refer to
LAN-15, "Trouble Diagnosis Flow Chart"
NO
>> Refer to GI section. Refer to
GI-41, "Intermittent Incident"
.
DTC
Display contents of CON-
SULT
Diagnostic item is detected when ...
Probable malfunction location
U1000
CAN COMM CIRCUIT
When AV control unit is not transmitting or re-
ceiving CAN communication signal for 2 sec-
onds or more.
CAN communication system.
AV
U1010 CONTROL UNIT (CAN)
AV-207
< DTC/CIRCUIT DIAGNOSIS >
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U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000010064836
Initial diagnosis of AV control unit.
DTC Logic
INFOID:0000000010064837
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000010064838
1.
REPLACE AV CONTROL UNIT
When DTC U1010 is detected, replace AV control unit. Refer to
AV-311, "Removal and Installation"
>> Inspection End.
DTC
Display contents of CON-
SULT
Diagnostic item is detected when ...
Probable malfunction location
U1010
CONTROL UNIT (CAN)
CAN initial diagnosis malfunction is detected.
AV control unit.
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