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Audio, Visual & Navigation System (Bose Audio Without Navigation): Diagnosis Nissan Quest IV

Entertainment Systems 13 illustrations ~6050 words

DTC INDEX

DTCDescription
DTC U1000CAN COMM CIRCUIT
DTC U1010CONTROL UNIT (CAN)
DTC U1200AV CONTROL UNIT
DTC U1216AV CONTROL UNIT
DTC U1232STEERING ANGLE SENSOR
DTC U1243FRONT DISPLAY UNIT
DTC U1255SATELLITE RADIO TUNER
DTC U1300AV COMM CIRCUIT
DTC U1310AV CONTROL UNIT

DTC INDEX

MULTIFUNCTION SWITCH AND PRESET SWITCH SELF-DIAGNOSIS FUNCTION

The ON/OFF operation (continuity) of each switch in the multifunction switch and preset switch can be checked.

Scheme 135

Scheme 135: Self-diagnosis Mode
Scheme 135: Self-diagnosis Mode
  1. Press the "BACK" switch and the "UP" switch of the 4-direction switches within 10 seconds after turning the ignition switch from OFF to ACC and hold them for 3 seconds or more. Then the buzzer sounds, all indicators of the preset switch illuminate, and the self-diagnosis mode starts.
  2. The continuity of each switch at the ON position can be checked by pressing the switch. The buzzer sounds if the switch is normal. NOTE: The disk eject switch cannot be checked.

Finishing Self-diagnosis Mode

Self-diagnosis mode is canceled when turning the ignition switch OFF.

On Board Diagnosis Item

ModeDescription
Self DiagnosisAV control unit diagnosis. Diagnoses the connections across system components, between AV control unit and each unit.
Confirmation/AdjustmentDisplay DiagnosisThe following check functions are available: color tone check by color bar display and white display, light and shade check by gray scale display.
Vehicle SignalsDiagnosis of signals can be performed for vehicle speed, parking brake, lights, ignition and reverse.
Speaker TestThe connection of a speaker can be confirmed by test tone.
Climate ControlStart auto air conditioner system self-diagnosis.
Error HistoryThe system malfunction and the frequency when occurring in the past are displayed. When the malfunctioning item is selected, the time and place that the selected malfunction last occurred are displayed.
Camera Cont.Guiding line position that overlaps rear view camera image can be adjusted. Configuration stored in the AV control unit can be checked.
Vehicle CAN DiagnosisThe transmitting/receiving of CAN communication can be monitored.
AV COMM DiagnosisThe communication condition of each unit of Multi AV system can be monitored.
Delete Unit Connection LogErase the connection history of unit and error history.
Initialize SettingsInitializes the AV control unit memory.

Scheme 136

Scheme 136: METHOD OF STARTING
Scheme 136: METHOD OF STARTING

Scheme 137

Scheme 137
Scheme 137
  1. Start the engine.
  2. Turn the audio system OFF.
  3. While pressing the "SETTING" button, turn the volume control dial clockwise or counterclockwise for 40 clicks or more. (When the self-diagnosis mode is started, the trouble diagnosis initial screen is displayed.) Shifting from current screen to previous screen is performed by pressing "BACK" button.
  4. Items of "Self Diagnosis" and "Confirmation/Adjustment" can be selected on the trouble diagnosis initial screen.

Scheme 138

Scheme 138: SELF-DIAGNOSIS MODE
Scheme 138: SELF-DIAGNOSIS MODE

Scheme 139

Scheme 139
Scheme 139
  1. Start the self-diagnosis function and select "Self Diagnosis". Self-diagnosis subdivision screen is displayed, and the self-diagnosis mode starts. The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trouble diagnosis.
  2. Diagnosis results are displayed after the self-diagnosis is completed. The unit names and the connection lines are color-coded according to the diagnostic results. Diagnosis results Unit Connection line Normal Green Green Connection malfunction Gray Yellow Unit malfunction (1) Red Green NOTE: (1) Control unit (AV control unit) and is displayed in red. Replace AV control unit if "Self-Diagnosis did not run because of a control unit malfunction" is indicated. The symptom is AV control unit internal error. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ". If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > gray. The comments of the self-diagnosis results can be viewed with a component in the diagnosis result screen.

Detection Range of Self-diagnosis Mode

  1. The self-diagnosis mode allows the technician to diagnose the connection in the communication line between AV control unit and each unit and the internal operation of the AV control unit.
  2. Because the start condition of diagnosis function is a switch operation, the on board diagnosis function cannot be started up if any malfunction is detected in the communication circuit between AV control unit and multifunction switch.

SELF-DIAGNOSIS RESULTS

Check the applicable display at the following table, and then repair the malfunctioning parts.

Only Unit Part Is Displayed In Red.

Screen switchDescriptionPossible malfunction location/Action to take
Control unitMalfunction is detected in AV control unit power supply and ground circuits.Check AV control unit power supply and ground circuits. When detecting no malfunction in those components, replace AV control unit. Refer to " REMOVAL AND INSTALLATION ".

A Connecting Cable Between Units Is Displayed In Yellow.

Area with yellow connection linesDescriptionPossible malfunction location/Action to take
Control unit <==> Front displaySerial communication circuits between AV control unit and front display unit are malfunctioning.Serial communication circuits between AV control unit and front display unit.
Control unit <==> SATWhen either one of the following items are detected: satellite radio tuner power supply and ground circuits are malfunctioning. communication circuits between AV control unit and satellite radio tuner are malfunctioning. request signal circuit between AV control unit and satellite radio tuner are malfunctioning.Satellite radio tuner power supply and ground circuit. Refer to " SATELLITE RADIO TUNER: DIAGNOSIS PROCEDURE ". Communication circuit between AV control unit and satellite radio tuner. Request signal circuit between AV control unit and satellite radio tuner.
Control unit <==> BTHFWhen either one of the following items are detected: TEL adapter unit power supply and ground circuit are malfunctioning. AV communication circuits between AV control unit and TEL adapter unit are malfunctioning.TEL adapter unit power supply and ground circuits. Refer to " TEL ADAPTER UNIT: DIAGNOSIS PROCEDURE " AV communication circuits between AV control unit and TEL adapter unit.
Control unit <==> Video Dist. (Rear)When either one of the following items are detected: Rear display unit power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and rear display unit are malfunctioning.Rear display unit power supply and ground circuits. AV communication circuits between AV control unit and rear display unit.

Scheme 140

Scheme 140: CONFIRMATION/ADJUSTMENT MODE
Scheme 140: CONFIRMATION/ADJUSTMENT MODE
  1. Start the diagnosis function and select "Confirmation/Adjustment". The confirmation/adjustment mode indicates where each item can be checked or adjusted.
  2. Select each switch on the "Confirmation/Adjustment Mode" screen to display the relevant trouble diagnosis screen. Press the "BACK" switch to return to the initial Confirmation/Adjustment Mode screen.

Scheme 141

Scheme 141: Display Diagnosis
Scheme 141: Display Diagnosis

Speaker Test

Select "Speaker Test" to display the Speaker Diagnosis screen. Press "Start" to generate a test tone in a speaker. Press "Start" again to generate a test tone in the next speaker. Press "End" to stop the test tones.

Scheme 142

Scheme 142: Speaker Test
Scheme 142: Speaker Test

Vehicle CAN Diagnosis

  1. CAN communication status and error counter is displayed.
  2. The error counter displays "OK" if any malfunction was not detected in the past and displays "0" if a malfunction is detected. It increases by 1 if the condition is normal at the next ignition switch ON cycle. The upper limit of the counter is 39.
  3. The error counter is erased if "Reset" is pressed.
ItemsDisplay (Current)Malfunction counter (Past)
Tx (HVAC)OK/???OK/0 - 39
Rx (ECM)OK/???OK/0 - 39
Rx (Cluster)OK/???OK/0 - 39
Rx (BCM)OK/???OK/0 - 39
Rx (HVAC)OK/???OK/0 - 39
Rx (USM)OK/???OK/0 - 39
Rx (VDC)OK/???OK/0 - 39
Rx (STRG)OK/???OK/0 - 39
NOTE: "???" indicates UNKWN.
NOTE
"???" indicates UNKWN.

Scheme 143

Scheme 143
Scheme 143

AV COMM Diagnosis

  1. Displays the communication status between AV control unit (master unit) and each unit.
  2. The error counter displays "OK" if any malfunction was not detected in the past and displays "0" if a malfunction is detected. It increases by 1 if the condition is normal at the next ignition switch ON cycle. The upper limit of the counter is 39.
  3. The error counter is erased if "Reset" is pressed.
ItemsStatus (Current)Counter (Past)
C Tx (ITM-Primary SW)OK/???OK/0 - 39
C Rx (PrimarySW-ITM)OK/???OK/0 - 39
C Rx (Video Dist-ITM)OK/???OK/0 - 39
C Rx (R.RemoteCont-ITM)OK/???OK/0 - 39
C Rx (BTHF-ITM)OK/???OK/0 - 39
NOTE: "???" indicates UNKWN
NOTE
"???" indicates UNKWN

Scheme 144

Scheme 144
Scheme 144

SELF DIAGNOSIS RESULT

  1. In CONSULT self-diagnosis, self-diagnosis results and error history are displayed collectively.
  2. The current malfunction indicates "CRNT". The past malfunction indicates "PAST".
  3. The timing is displayed as "0" if any of the error codes [U1000], [U1010], [U1300] and [U1310] is detected. The counter increases by 1 if the condition is normal at the next ignition switch ON cycle.

Self-diagnosis Results Display Item

Error itemDescriptionPossible malfunction factor/Action to take
CAN COMM CIRCUIT [U1000]CAN communication malfunction is detected.Refer to " DIAGNOSIS PROCEDURE ".
CONTROL UNIT (CAN) [U1010]CAN initial diagnosis malfunction is detected.Replace the AV control unit if the malfunction occurs constantly. Refer to " REMOVAL AND INSTALLATION ".
CONTROL UNIT (AV) [U1310]AV communication circuit initial diagnosis malfunction is detected.
Cont Unit [U1200]AV control unit malfunction is detected.
CAN CONT [U1216]
ST ANGLE SEN CALIB [U1232]Neutral position adjustment of the steering angle sensor is incomplete.Adjust the neutral position of the steering angle sensor. Refer to " DIAGNOSIS PROCEDURE ".
FRONT DISP CONN [U1243]When either one of the following items is detected: front display unit power supply and ground circuits malfunction is detected. communication circuits between AV control unit and front display unit.Front display unit power supply and ground circuits. Refer to " FRONT DISPLAY UNIT: DIAGNOSIS PROCEDURE ". Communication circuits between AV control unit and front display unit.
SAT CONN [U1255]When either one of the following items is detected: satellite radio tuner power supply and ground circuit are malfunctioning. communication circuits between AV control unit and satellite radio tuner are malfunctioning. request signal circuit between AV control unit and satellite radio tuner are malfunctioning.Satellite radio tuner power supply and ground circuit. Refer to " SATELLITE RADIO TUNER: DIAGNOSIS PROCEDURE ". Communication circuit between AV control unit and satellite radio tuner. Request signal circuit between AV control unit and satellite radio tuner.
AV COMM CIRCUIT [U1300] SWITCH CONN [U1240]When either one of the following items are detected: multifunction switch power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and multifunction switch are malfunctioning.Multifunction switch power supply and ground circuits. AV communication circuits between AV control unit and multifunction switch.
AV COMM CIRCUIT [U1300] VIDEO DIST CONN [U1246]When either one of the following items are detected: rear display unit power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and rear display unit are malfunctioning.Rear display unit power supply and ground circuits. Refer to " REAR DISPLAY UNIT: DIAGNOSIS PROCEDURE ". AV communication circuits between AV control unit and rear display unit.
AV COMM CIRCUIT [U1300] HAND FREE CONN [U1256]When either one of the following items is detected: TEL adapter unit power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and TEL adapter unit are malfunctioning.TEL adapter unit power supply and ground circuits. Refer to " TEL ADAPTER UNIT: DIAGNOSIS PROCEDURE ". AV communication circuits between AV control unit and TEL adapter unit.
AV COMM CIRCUIT [U1300] SWITCH CONN [U1240] VIDEO DIST CONN [U1246] HAND FREE CONN [U1256]AV communication circuits between AV control unit and multifunction switch are malfunctioning.AV communication circuits between AV control unit and multifunction switch.

HANDS-FREE PHONE SYSTEM ON BOARD DIAGNOSIS

During on board diagnosis the diagnosis function of TEL adapter unit starts with the operation of the steering switch and performs the diagnosis when ignition switch ACC.

The on board diagnosis has 3 modes: the self-diagnosis mode that performs the trouble diagnosis, the speaker adaptation data deleting mode and the hands-free phone system initialization mode.

CAUTIONPerform the diagnosis with the vehicle stopped. Perform STEP2 if necessary.
STEPMODEDescription
STEP 1Self-diagnosisThe self-diagnosis mode performs the microphone test and the diagnosis of TEL adapter unit, TEL antenna and steering unit, and then reads out the results with the sound and indicates them on the display.
STEP 2Speaker adaptation data deletingThe speaker adaptation data deleting mode can delete the speaker adaptation data.
Hands-free phone system initializationHands-free phone system initialization mode can perform the initialization of hands-free phone system.

Self-diagnosis mode reads out the self-diagnosis results.

Note. Error count is read out simultaneously when reading out the DTC name. The errors are read out continuously when some errors occur at the same time.

DTCDTC namePossible causes
DTC 10000INTERNAL FAILURETEL adapter unit
DTC 01000ANT. SHORT TO BATT OR OPENTEL antenna
DTC 00100ANT. SHORT TO GROUND
DTC 00010STEERING REMOTE BUTTON STUCK ASteering switch
DTC 00001STEERING REMOTE BUTTON STUCK B
DTC 00000THERE ARE NO FAILURE RECORDS TO REPORT

SELF-DIAGNOSIS RESULTS POSSIBLE CAUSES

VALUES ON THE DIAGNOSIS TOOL

Note. The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor ItemConditionValue/Status
VHCL SPD SIGIgnition switch ONVehicle speed > 0 km/h (0 MPH)On
Vehicle speed = 0 km/h (0 MPH)Off
PKB SIGIgnition switch ONParking brake is applied.On
Parking brake is released.Off
ILLUM SIGIgnition switch ONBlock the light from the auto light optical sensor when the lighting switch is 1st or 2nd.On
Expose the auto light optical sensor to light when the lighting switch is OFF, 1st or 2nd.Off
IGN SIGIgnition switch ONOn
Ignition switch ACCOff
REV SIGIgnition switch ONSelector lever is in the R positionOn
Selector lever is in any position other than ROff

CONSULT MONITOR ITEM DESCRIPTION

Scheme 145

Scheme 145: TERMINAL LAYOUT
Scheme 145: TERMINAL LAYOUT
DTCDisplay itemRefer to
U1000CAN COMM CIRCUIT [U1000]" DIAGNOSIS PROCEDURE "
U1010CONTROL UNIT (CAN) [1010]" DTC LOGIC "
U1200Cont Unit [U1200]" DTC LOGIC "
U1216CAN CONT [U1216]" DTC LOGIC "
U1232ST ANGLE SEN CALIB [1232]" DIAGNOSIS PROCEDURE "
U1243FRONT DISP CONN [U1243]" DIAGNOSIS PROCEDURE "
U1255SAT CONN [U1255]" DIAGNOSIS PROCEDURE "
U1310CONTROL UNIT (AV) [U1310]" DTC LOGIC "
U1300 U1240AV COMM CIRCUIT [U1300] SWITCH CONN [U1240]" DESCRIPTION "
U1300 U1246AV COMM CIRCUIT [U1300] VIDEO DIST CONN [U1246]
U1300 U1256AV COMM CIRCUIT [U1300] HAND FREE CONN [U1256]
U1300 U1240 U1246 U1256AV COMM CIRCUIT [U1300] SWITCH CONN [U1240] VIDEO DIST CONN [U1246] HAND FREE CONN [U1256]

Scheme 146

Scheme 146: TERMINAL LAYOUT
Scheme 146: TERMINAL LAYOUT

DTC DETECTION LOGIC

DTCDisplay contents of CONSULTDTC detection conditionProbable malfunction location
U1000CAN COMM CIRCUIT [U1000]AV control unit is not transmitting or receiving CAN communication signal for 2 seconds or more.CAN communication system.

Diagnosis Procedure

  1. PERFORM SELF-DIAGNOSTIC Turn ignition switch ON and wait for 2 seconds or more. Check "Self Diagnostic Result" of "MULTI AV". Is "CAN COMM CIRCUIT" displayed? YES: Refer to " «TROUBLE DIAGNOSIS PROCEDURE»(ref-672614-S40197139672014112400000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-672611-S01525861502014112400000) ".
DTCDisplay contents of CONSULTDTC detection conditionProbable malfunction factor
U1010CONTROL UNIT (CAN) [U1010]CAN initial diagnosis malfunction is detected.Replace the AV control unit if the malfunction occurs constantly. Refer to " REMOVAL AND INSTALLATION ".

DTC Logic

DTCDisplay contents of CONSULTDTC detection conditionPossible malfunction factor
U1200Cont Unit [U1200]AV control unit malfunction is detected.Replace the AV control unit if the malfunction occurs constantly. Refer to " REMOVAL AND INSTALLATION ".
DTCDisplay contents of CONSULTDTC detection conditionPossible malfunction factor
U1216CAN CONT [U1216]AV control unit malfunction is detected.Replace the AV control unit if the malfunction occurs constantly. Refer to " REMOVAL AND INSTALLATION ".
DTCDisplay contents of CONSULTDTC detection conditionPossible malfunction factor
U1232ST ANGLE SEN CALIB [1232]Neutral position adjustment of the steering angle sensor is incomplete.Adjust neutral position of the steering angle sensor.
  1. ADJUST THE NEUTRAL POSITION OF THE STEERING ANGLE SENSOR When U1232 is detected, adjust the neutral position of the steering angle sensor. : Adjusts the steering angle sensor neutral position on ABS actuator and electrical unit (control unit) side. Refer to " «WORK PROCEDURE»(ref-672633-S21232897132014112400000) ".
DTCDisplay contents of CONSULTDTC detection conditionPossible malfunction factor
U1243FRONT DISP CONN [U1243]When either one of the following items are detected: front display unit power supply and ground circuits are malfunctioning. serial communication circuits between front display unit and AV control unit are malfunctioning.Front display unit power supply and ground circuits. Serial communication circuits between front display unit and AV control unit.
  1. CHECK FRONT DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUITS Check front display unit power supply and ground circuits. Refer to " «FRONT DISPLAY UNIT: DIAGNOSIS PROCEDURE»(ref-672661-S06544387962014112400000) ". Is inspection result normal? YES: GO TO 2. NO: Repair malfunctioning parts.
  2. CHECK CONTINUITY COMMUNICATION CIRCUITS Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminals Connector Terminals M156 11 M172 51 Existed 22 39 Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminals M156 11 Not existed 12 Is inspection result normal? YES: GO TO 3. NO: Repair harness or connector.
  3. CHECK COMMUNICATION SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 11 M156 1 When adjusting display brightness. Waveform of 0.4 V - 5.3 V is input. Is inspection result normal? YES: GO TO 4. NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  4. CHECK COMMUNICATION SIGNAL Check signal between front display unit harness connector and ground. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 22 M156 1 When adjusting display brightness. Waveform of 0.5 V or less - 3.5 V or more is input. Is inspection result normal? YES: INSPECTION END NO: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ".
DTCDisplay contents of CONSULTDTC Detection ConditionPossible causes
U1255SAT CONN [U1255]When either one of the following items is detected: satellite radio tuner power supply and ground circuit are malfunctioning. communication circuits between AV control unit and satellite radio tuner are malfunctioning. request signal circuit between AV control unit and satellite radio tuner are malfunctioning.Satellite radio tuner power supply and ground circuit. Refer to " SATELLITE RADIO TUNER: DIAGNOSIS PROCEDURE ". Communication circuit between AV control unit and satellite radio tuner. Request signal circuit between AV control unit and satellite radio tuner.
  1. CHECK SATELLITE RADIO TUNER POWER SUPPLY AND GROUND CIRCUIT Check satellite radio tuner power supply and ground circuit. Refer to " «SATELLITE RADIO TUNER: DIAGNOSIS PROCEDURE»(ref-672661-S32063126022014112400000) ". Is the inspection result normal? YES: GO TO 2. NO: Repair malfunctioning parts.
  2. CHECK CONTINUITY COMMUNICATION CIRCUIT AND REQUEST SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect AV control unit connector and satellite radio tuner connector. Check continuity between AV control unit harness connector and satellite radio tuner harness connector. AV control unit Satellite radio tuner Continuity Connector Terminals Connector Terminals M176 122 B49 10 Existed 129 8 130 9 Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminals M176 122 Not existed 129 130 Is the inspection result normal? YES: GO TO 3. NO: Repair harness or connector.
  3. CHECK AV CONTROL UNIT VOLTAGE Connect AV control unit connector. Turn ignition switch ON. Check signal between AV control unit harness connector and ground. (+) (-) Voltage (Approx.) AV control unit Connector Terminals M176 129 Ground 7.0 V 130 7.0 V Is the inspection result normal? YES: GO TO 4. NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  4. CHECK SATELLITE RADIO TUNER VOLTAGE Turn ignition switch OFF. Disconnect AV control unit connector. Connect satellite radio tuner. Turn ignition switch ON. Check signal between satellite radio tuner harness connector and ground. (+) (-) Voltage (Approx.) Satellite radio tuner Connector Terminal B49 10 Ground 7.0 V Is the inspection result normal? YES: INSPECTION END NO: Replace satellite radio tuner. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S24407585432014112400000) ".
DTCDisplay contents of CONSULTDTC Detection ConditionPossible causes
U1300 U1240AV COMM CIRCUIT [U1300] SWITCH CONN [U1240]When either one of the following items is detected: multifunction switch power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and multifunction switch are malfunctioning.Multifunction switch power supply and ground circuits. AV communication circuits between AV control unit and multifunction switch.
U1300 U1246AV COMM CIRCUIT [U1300] VIDEO DIST CONN [U1246]When either one of the following items are detected: rear display unit power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and rear display unit are malfunctioning.Rear display unit power supply and ground circuits. AV communication circuits between AV control unit and rear display unit.
U1300 U1256AV COMM CIRCUIT [U1300] HAND FREE CONN [U1256]When either one of the following items is detected: TEL adapter unit power supply and ground circuits are malfunctioning. AV communication circuits between AV control unit and TEL adapter unit are malfunctioning.TEL adapter unit power supply and ground circuits. AV communication circuits between AV control unit and TEL adapter unit.
U1300 U1240 U1246 U1256AV COMM CIRCUIT [U1300] SWITCH CONN [U1240] VIDEO DIST CONN [U1246] HAND FREE CONN [U1256]AV communication circuits between AV control unit and multifunction switch are malfunctioning.AV communication circuits between AV control unit and multifunction switch.

DTC DETECTION CONDITION

DTCDisplay contents of CONSULTDTC detection conditionPossible malfunction factor
U1310CONTROL UNIT (AV) [U1310]An initial diagnosis error is detected in AV communication circuit.Replace the AV control unit if the malfunction occurs constantly. Refer to " REMOVAL AND INSTALLATION ".

AV CONTROL UNIT: Diagnosis Procedure

  1. CHECK FUSE Check for blown fuses. Power source Fuse No. Battery 35 Ignition switch ACC or ON 19 Is the inspection result normal? YES: GO TO 2. NO: Be sure to eliminate cause of malfunction before installing new fuse.
  2. CHECK POWER SUPPLY CIRCUIT Check voltage between AV control unit harness connectors and ground. Signal name AV control unit Probe Condition Standard Reference value Terminal Connector (+) (-) Ignition switch Battery power supply M171 19 20 OFF 9.0 - 15.6 V Battery voltage ACC power supply 7 ACC 9.0 - 16.0 V Is the inspection result normal? YES: GO TO 3. NO: Check harness between AV control unit and fuse.
  3. CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect AV control unit connectors. Check continuity between AV control unit harness connectors and ground. Signal name Connector Terminal Ignition switch position Continuity Ground M171 20 OFF Existed Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.

FRONT DISPLAY UNIT: Diagnosis Procedure

  1. CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE) Check voltage between display unit harness connector and ground. Signal name Front display unit Probe Condition Standard Voltage (Approx.) Terminal Connector (+) (-) Ignition switch Inverter VCC M156 2 13 OFF 8.0 - 9.5 V 8.8 V Signal VCC 3 14 ACC Is the inspection result normal? YES: GO TO 4 . NO: GO TO 2.
  2. CHECK POWER SUPPLY CIRCUIT (CONTINUITY) Turn ignition switch OFF. Disconnect the harness connector between front display unit and AV control unit. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 2 M172 48 Existed 3 36 Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 2 Not existed 3 Is the inspection result normal? YES: GO TO 3. NO: Repair harness or connector.
  3. CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE) Connect the AV control unit harness connector. Turn ignition switch ACC. Check voltage between AV control unit harness connector and ground. Probe Standard Voltage (Approx.) (+) (-) AV control unit Connector Terminal Connector Terminal M172 48 M172 49 8.0 - 9.5 V 8.8 V 36 37 Is the inspection result normal? YES: INSPECTION END NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  4. CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector. Check continuity between front display unit harness connectors and ground. Signal name Connector Terminal Ignition switch position Continuity Ground M156 1 OFF Existed Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.

REAR DISPLAY UNIT: Diagnosis Procedure

  1. CHECK FUSE Check for blown fuses. Power source Fuse No. Battery 35 Ignition switch ACC or ON 19 Is the inspection result normal? YES: GO TO 2. NO: Be sure to eliminate cause of malfunction before installing new fuse.
  2. CHECK POWER SUPPLY CIRCUIT Check voltage between rear display unit harness connector and ground. Signal name Rear display unit Probe Condition Standard Reference value Terminal Connector (+) (-) Ignition switch Battery power supply R36 29 31 32 OFF 9.0 - 16.0 V Battery voltage 30 ACC power supply 28 ACC 7.6 V - Battery voltage Is the inspection result normal? YES: GO TO 3. NO: Check harness between rear display unit and fuse.
  3. CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect rear display unit connector. Check continuity between rear display unit harness connector and ground. Signal name Connector No. Terminal No. Ignition switch position Continuity Ground R36 31 OFF Existed 32 Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.

BOSE AMP.: Diagnosis Procedure

  1. CHECK FUSE Check for blown fuses. Power source Fuse No. Battery 26 27, 28 Is the inspection result normal? YES: GO TO 2. NO: Be sure to eliminate cause of malfunction before installing new fuse.
  2. CHECK POWER SUPPLY CIRCUIT Check voltage between BOSE amp. harness connector and ground. Signal name BOSE amp. Probe Condition Standard Reference value Terminal Connector (+) (-) Ignition switch Battery power supply B251 10 7 12 OFF 9.0 - 16.0 V Battery voltage 11 Is the inspection result normal? YES: GO TO 3. NO: Check harness between BOSE amp. and fuse.
  3. CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect BOSE amp. connector. Check continuity between BOSE amp. harness connector and ground. Signal name Connector No. Terminal No. Ignition switch position Continuity Ground B251 7 OFF Existed 12 Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.

SATELLITE RADIO TUNER: Diagnosis Procedure

  1. CHECK FUSES Check that the following fuses of the satellite radio tuner are not blown. Power source Fuse No. Battery 35 Ignition switch ACC or ON 19 Is inspection result OK? YES: GO TO 2. NO: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
  2. CHECK POWER SUPPLY CIRCUIT Check voltage between the satellite radio tuner and ground. Signal name Satellite radio tuner Probe Condition Standard Reference value Terminal Connector (+) (-) Ignition switch Battery power supply B49 12 15 OFF 10.8 - 15.6 V Battery voltage ACC power supply 16 ACC 7.0 - 16.0 V Is inspection result OK? YES: GO TO 3. NO: Check harness between satellite radio tuner and fuse.
  3. CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect satellite radio tuner connector. Check continuity between satellite radio tuner harness connector and ground. Signal name Connector Terminal No. Ignition switch position Continuity Ground B49 15 OFF Existed Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.

TEL ADAPTER UNIT: Diagnosis Procedure

  1. CHECK FUSE Check for blown fuses. Power source Fuse No. Battery 35 Ignition switch ACC or ON 19 Is the inspection result normal? YES: GO TO 2. NO: Be sure to eliminate cause of malfunction before installing new fuse.
  2. CHECK POWER SUPPLY CIRCUIT Check voltage between TEL adapter unit harness connector and ground. Signal name TEL adapter unit Probe Condition Standard Reference value Terminal Connector (+) (-) Ignition switch Battery power supply M138 1 4 OFF 9.0 - 16.0 V Battery voltage ACC power supply 2 ACC 7.0 - 16.0 V Is the inspection result normal? YES: GO TO 3. NO: Check harness between TEL adapter unit and fuse.
  3. CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect TEL adapter unit connector. Check continuity between TEL adapter unit harness connector and ground. Signal name Connector Terminal Ignition switch position Continuity Ground M138 4 OFF Existed Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.
  1. CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 17 M172 43 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 17 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK RGB (R: RED) SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 17 M156 1 Start confirmation/adjustment mode, and then display color bar by selecting "Color Spectrum Bar" on DISPLAY DIAGNOSIS screen. Waveform according to RGB image is input. Is the inspection result normal? YES: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY RGB (G: GREEN) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 6 M172 44 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 6 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK RGB (G: GREEN) SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 6 M156 1 Start confirmation/adjustment mode, and then display color bar by selecting "Color Spectrum Bar" on DISPLAY DIAGNOSIS screen. Waveform according to RGB image is input. Is the inspection result normal? YES: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 18 M172 45 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 18 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK RGB (B: BLUE) SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 18 M156 1 Start confirmation/adjustment mode, and then display color bar by selecting "Color Spectrum Bar" on DISPLAY DIAGNOSIS screen. Waveform according to RGB image is input. Is the inspection result normal? YES: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 19 M172 42 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 19 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK RGB SYNCHRONIZING SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 19 M156 1 Waveform of 0.8 V - 5.5 V is input. Is the inspection result normal? YES: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 9 M172 40 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 9 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK RGB AREA (YS) SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 9 M156 1 At RGB image is displayed 5.5 V or less 5.0 V At AUX image is displayed Waveform of 0.8 V - 5.5 V is input. Is the inspection result normal? YES: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 8 M172 38 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 8 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK HORIZONTAL SYNCHRONIZING (HP) SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 8 M156 1 Waveform of 1.0 V - 5.5 V is output. Is the inspection result normal? YES: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ". NO: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ".
  1. CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect front display unit connector and AV control unit connector. Check continuity between front display unit harness connector and AV control unit harness connector. Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 20 M172 50 Existed Check continuity between front display unit harness connector and ground. Front display unit Ground Continuity Connector Terminal M156 20 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL Connect front display unit connector and AV control unit connector. Turn ignition switch ON. Check signal between front display unit harness connector and ground. Probe Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 20 M156 1 Waveform of 1.0 V - 5.5 V is output. Is the inspection result normal? YES: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ". NO: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ".
  1. CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY UNIT) Turn ignition switch OFF. Disconnect AV control unit connector and front display unit connector. Check continuity between AV control unit harness connector and front display unit harness connector. AV control unit Front display unit Continuity Connector Terminal Connector Terminal M172 46 M156 4 Existed 47 15 Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M172 46 Not existed 47 Is inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO FRONT DISPLAY UNIT) Connect AV control unit connector and front display unit connector. Turn ignition switch ON. Check signal between front display unit harness connector. Probe Condition Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 15 M156 4 When DVD, AUX or camera image is displayed. Waveform according to composite image is input. Is inspection result normal? YES: Replace front display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S20003116732014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO REAR DISPLAY UNIT) Turn ignition switch OFF. Disconnect AV control unit connector and rear display unit connector. Check continuity between AV control unit harness connector and rear display unit harness connector. AV control unit Rear display unit Continuity Connector Terminal Connector Terminal M173 67 R36 7 Existed 66 8 Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M173 67 Not existed 66 Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO REAR DISPLAY UNIT) Connect AV control unit connector and rear display unit connector. Turn ignition switch ON. Check signal between rear display unit harness connector. Probe Condition Standard Reference value (+) (-) Rear display unit Connector Terminal Connector Terminal R36 7 R36 8 When DVD or AUX image is displayed. Waveform according to composite image is input. Is the inspection result normal? YES: Replace rear display unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S33089398272014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect AV control unit connector and auxiliary input jacks connector. Check continuity between AV control unit harness connector and auxiliary input jacks harness connector. AV control unit Auxiliary input jacks Continuity Connector Terminal Connector Terminal M173 61 B273 7 Existed 69 8 Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M173 61 Not existed 69 Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK AUX IMAGE SIGNAL Connect AV control unit connector and auxiliary input jacks connector. Turn ignition switch ON. Check signal between AV control unit harness connector and ground. Probe Condition Standard Reference value (+) (-) AV control unit Connector Terminal Connector Terminal M173 61 M173 69 When AUX image is displayed on front or rear display unit. Waveform according to AUX image is input. Is the inspection result normal? YES: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ". NO: Check that there is no malfunction in the external device.
  1. CHECK CONTINUITY CAMERA POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect AV control unit connector and rear view camera connector. Check continuity between AV control unit harness connector and rear view camera harness connector. AV control unit Rear view camera Continuity Connector Terminal Connector Terminal M173 73 D167 1 Existed Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M173 73 Not existed Is inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK VOLTAGE CAMERA POWER SUPPLY Connect AV control unit connector and rear view camera connector. Turn ignition switch ON. Shift the selector lever to "R". Check voltage between AV control unit harness connector and ground. Probe Standard Voltage (Approx.) (+) (-) AV control unit Connector Terminal Connector Terminal M173 73 M173 72 5.9 - 6.5 V 6.2 V Is inspection result normal? YES: GO TO 3. NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  3. CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect AV control unit connector and rear view camera connector. Check continuity between AV control unit harness connector and rear view camera harness connector. AV control unit Rear view camera Continuity Connector Terminal Connector Terminal M173 62 D167 3 Existed Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M173 62 Not existed Is inspection result normal? YES: GO TO 4. NO: Repair harness or connector.
  4. CHECK CAMERA IMAGE SIGNAL Connect AV control unit connector and rear view camera connector. Turn ignition switch ON. Shift the selector lever to "R". Check signal between AV control unit harness connector and ground. Probe Condition Standard Reference value (+) (+) AV control unit Connector Terminal Connector Terminal M173 62 M171 20 When camera image is displayed. Waveform according to camera image is input. Is inspection result normal? YES: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ". NO: Replace rear view camera. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S28100362442014112400000) ".
  1. CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect AV control unit connector and disk eject switch connector. Check continuity between AV control unit harness connector and disk eject switch harness connector. AV control unit Disk eject switch Continuity Connector Terminal Connector Terminal M174 96 M153 4 Existed 82 3 Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M174 96 Not existed 82 Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK AV CONTROL UNIT VOLTAGE Connect AV control unit connector. Turn ignition switch ON. Check voltage between disk eject switch harness connector and ground. Probe Standard Voltage (Approx.) (+) (-) Disk eject switch Connector Terminal Connector Terminal M153 4 M153 3 - 3.3 V Is the inspection result normal? YES: Replace disk eject switch. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S27054339492014112400000) ". NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  1. CHECK CONTINUITY BETWEEN TEL ADAPTER UNIT AND MICROPHONE CIRCUIT Turn ignition switch OFF. Disconnect TEL adapter unit connector and microphone connector. Check continuity between TEL adapter unit harness connector and microphone harness connector. TEL adapter unit Microphone Continuity Connector Terminals Connector Terminals M138 7 R20 1 Existed 8 2 29 4 Check continuity between TEL adapter unit harness connector and ground. TEL adapter unit Ground Continuity Connector Terminals M138 29 Not existed 7 Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK VOLTAGE MICROPHONE VCC Connect TEL adapter unit connector. Turn ignition switch ON. Check voltage between TEL adapter unit harness connector. Probe Standard Voltage (Approx.) (+) (-) TEL adapter unit Connector Terminal Connector Terminal M138 29 M138 8 4.7 - 5.3 V 5.0 V Is the inspection result normal? YES: GO TO 3. NO: Replace TEL adapter unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S05782233002014112400000) ".
  3. CHECK MICROPHONE SIGNAL Connect microphone connector. Check signal between TEL adapter unit harness connector. Probe Condition Standard Reference value (+) (+) TEL adapter unit Connector Terminal Connector Terminal M138 7 M138 8 Give a voice. Waveform according to voice is input. Is the inspection result normal? YES: Replace TEL adapter unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S05782233002014112400000) ". NO: Replace microphone. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S03751541352014112400000) ".
  1. CHECK CONTINUITY CONTROL SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect TEL adapter unit connector. Check continuity between TEL adapter unit harness connector and ground. TEL adapter unit Ground Standard Reference value (Approx.) Connector Terminals M138 20 3.1 V or less 0 V 27 Is the inspection result normal? YES: Replace TEL adapter unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S05782233002014112400000) ". NO: Repair harness or connector.
  1. CHECK STEERING SWITCH SIGNAL A CIRCUIT Disconnect AV control unit connector and spiral cable connector. Check continuity between AV control unit harness connector and spiral cable harness connector. AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M171 6 M33 24 Existed Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M171 6 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK SPIRAL CABLE Check spiral cable. Is the inspection result normal? YES: GO TO 3. NO: Replace spiral cable. Refer to " «REMOVAL AND INSTALLATION»(ref-672639-S32347741632014112400000) ".
  3. CHECK AV CONTROL UNIT VOLTAGE Connect AV control unit connector and spiral cable connector. Turn ignition switch ON. Check voltage between AV control unit harness connector. Probe Standard Voltage (Approx.) (+) (-) AV control unit Connector Terminal Connector Terminal M171 6 M171 15 0 - 3.3 V 3.3 V Is the inspection result normal? YES: GO TO 4. NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  4. CHECK STEERING SWITCH Turn ignition switch OFF. Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-672661-S40153575872014112400000) ". Is the inspection result normal? YES: INSPECTION END NO: Replace steering wheel. Refer to " «REMOVAL AND INSTALLATION»(ref-672626-S13447035482014112400000) ".

Component Inspection

Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.

Standard

Between terminals 14 and 17

switch ON: 708 - 737 ohms

MENU DOWN switch ON: 314 - 327 ohms

MENU UP switch ON: 118 - 123 ohms

SOURCE switch ON: Less than 1 ohms

Between terminals 15 and 17

switch ON: 314 - 327 ohms

VOL UP switch ON: 118 - 123 ohms

VOL DOWN switch ON: Less than 1 ohms

Scheme 147

Scheme 147: Component Inspection
Scheme 147: Component Inspection
  1. CHECK STEERING SWITCH SIGNAL B CIRCUIT Disconnect AV control unit connector and spiral cable connector. Check continuity between AV control unit harness connector and spiral cable harness connector. AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M171 16 M33 31 Existed Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M171 16 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK SPIRAL CABLE Check spiral cable. Is the inspection result normal? YES: GO TO 3. NO: Replace spiral cable. Refer to " «REMOVAL AND INSTALLATION»(ref-672639-S32347741632014112400000) ".
  3. CHECK AV CONTROL UNIT VOLTAGE Connect AV control unit connector and spiral cable connector. Turn ignition switch ON. Check voltage between AV control unit harness connector. Probe Standard Voltage (Approx.) (+) (-) AV control unit Connector Terminal Connector Terminal M171 16 M171 15 0 - 3.3 V 3.3 V Is the inspection result normal? YES: GO TO 4. NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  4. CHECK STEERING SWITCH Turn ignition switch OFF. Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-672661-S08662671782014112400000) ". Is the inspection result normal? YES: INSPECTION END NO: Replace steering wheel. Refer to " «REMOVAL AND INSTALLATION»(ref-672626-S13447035482014112400000) ".

Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.

Standard

Between terminals 14 and 17

switch ON: 708 - 737 ohms

MENU DOWN switch ON: 314 - 327 ohms

MENU UP switch ON: 118 - 123 ohms

SOURCE switch ON: Less than 1 ohms

Between terminals 15 and 17

switch ON: 314 - 327 ohms

VOL UP switch ON: 118 - 123 ohms

VOL DOWN switch ON: Less than 1 ohms

  1. CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT Disconnect AV control unit connector and spiral cable connector. Check continuity between AV control unit harness connector and spiral cable harness connector. AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M171 15 M33 33 Existed Connect AV control unit connector. Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
  2. CHECK SPIRAL CABLE Check spiral cable. Is the inspection result normal? YES: GO TO 3. NO: Replace spiral cable. Refer to " «REMOVAL AND INSTALLATION»(ref-672639-S32347741632014112400000) ".
  3. CHECK GROUND CIRCUIT Connect AV control unit connector. Check continuity between AV control unit harness connector and ground. AV control unit Ground Continuity Connector Terminal M171 15 Existed Is the inspection result normal? YES: GO TO 4. NO: Replace AV control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-672661-S38174634402014112400000) ".
  4. CHECK STEERING SWITCH Turn ignition switch OFF. Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-672661-S14969143932014112400000) ". Is the inspection result normal? YES: INSPECTION END NO: Replace steering wheel. Refer to " «REMOVAL AND INSTALLATION»(ref-672626-S13447035482014112400000) ".

Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.

Standard

Between terminals 14 and 17

switch ON: 708 - 737 ohms

MENU DOWN switch ON: 314 - 327 ohms

MENU UP switch ON: 118 - 123 ohms

SOURCE switch ON: Less than 1 ohms

Between terminals 15 and 17

switch ON: 314 - 327 ohms

VOL UP switch ON: 118 - 123 ohms

VOL DOWN switch ON: Less than 1 ohms

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