Contents Wiring diagrams Section: Communication Devices All sections

Driver Information System: Other Nissan Murano Z50

Communication Devices 45 illustrations ~4781 words

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SUPPLEMENTAL RESTRAINT SYSTEM and SEAT BELTS articles.

WARNINGTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see SUPPLEMENTAL RESTRAINT SYSTEM article. Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this article. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

UNIFIED METER CONTROL UNIT

  1. Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the unified meter control unit, which is built into the combination meter. Unified meter control unit receives signals from unified meter and A/C amp.
  2. Warning lamp and indicator lamp of combination meter are controlled by signals drawn from the unified meter and A/C amp.
  3. Digital meter is adopted for odo/trip meter. The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter is erased when the battery cable is disconnected.
  4. Odo/trip meter and CVT indicator segments can be checked in diagnosis mode.
  5. Meters/gauges can be checked in diagnosis mode.

Illumination Control

The unified meter control unit outputs the odo/trip meter and CVT indicator lighting when the ignition switch is turned on. When the lighting switch is turned on, light on for the combination meter dial, odo/trip meter and illumination control switch and external lighting are output. In addition, when the lighting switch is turned on, the illumination control switch on the left side of the combination meter can be used to adjust the brightness of each light. The brightness can be adjusted to sixteen different levels: From 0 (no lights) to 15 (maximum). Pressing the illumination control switch will brighten or darken the lights. When the key switch is in the START position, the combination meter dial lighting and illumination control switch lighting are turned off.

UNIFIED METER AND A/C AMP.

Refer to SYSTEM DESCRIPTION .

Scheme 91

Scheme 91: UNIFIED METER AND A/C AMP.

Scheme 92

Scheme 92: HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER
  1. The vehicle speed signal and the memory signals from the meter memory circuit are processed by the combination meter and the mileage is displayed.
  2. Depressing the odo/trip meter switch toggles the mode in the following order.
  3. The odo/trip meter display mode toggling and trip display resetting can be identified by the amount of time that elapses from pressing the odo/trip meter switch to releasing it.
  4. When resetting with trip A displayed, only trip A display is reset (Trip B operates the same way).

Scheme 93

Scheme 93

POWER SUPPLY AND GROUND CIRCUIT

Power is supplied at all times

  1. through 10A fuse [No. 19, located in the fuse block (J/B)]
  2. to unified meter and A/C amp. terminal 21
  3. through 10A fuse [No. 21, located in the fuse block (J/B)]
  4. to combination meter terminal 21.

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

  1. through 10A fuse [No. 14, located in the fuse block (J/B)]
  2. to combination meter terminal 20
  3. through 10A fuse [No. 12, located in the fuse block (J/B)]
  4. to unified meter and A/C amp. terminal 22.

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

  1. through 15A fuse [No. 10, located in the fuse block (J/B)], and
  2. through 15A fuse [No. 11, located in the fuse block (J/B)]
  3. to unified meter and A/C amp. terminal 46.

Ground is supplied

  1. to combination meter terminals 22, 23 and 24
  2. through grounds M14 and M78
  3. to unified meter and A/C amp. terminals 29 and 30
  4. through grounds M14 and M78.

SPEEDOMETER

ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C amp. with CAN communication line. After unified meter and A/C amp. received the vehicle speed signal, it changes the signal to 8 pulse signal and provides the 8 pulse signal to the combination meter for the speedometer.

TACHOMETER

The tachometer indicates engine speed in revolutions per minute (rpm).

ECM provides an engine speed signal to unified meter and A/C amp. with CAN communication line. Unified meter and A/C amp. provides an engine speed signal to combination meter for tachometer with communication line between unified meter and A/C amp. and combination meter.

WATER TEMPERATURE GAUGE

The water temperature gauge indicates the engine coolant temperature.

ECM provides a engine coolant temperature signal to unified meter and A/C amp. with CAN communication line. Unified meter and A/C amp. provides a water temperature signal to combination meter for water temperature gauge with communication line between unified meter and A/C amp. and combination meter.

FUEL GAUGE

The fuel gauge indicates the approximate fuel level in the fuel tank. The fuel gauge is regulated by a variable ground signal supplied

  1. from unified meter and A/C amp. terminal 36
  2. through the fuel level sensor unit and fuel pump (main) terminals 5 and 7
  3. through the fuel level sensor unit (sub), and
  4. through the fuel level sensor unit and fuel pump (main) terminals 6 and 2
  5. to unified meter and A/C amp. terminal 28 for the fuel gauge.

Unified meter and A/C amp. provides an fuel level signal to combination meter for fuel gauge with communication line between unified meter and A/C amp. and combination meter.

Scheme 94

Scheme 94: Component Parts and Harness Connector Location

Scheme 95

Scheme 95: Arrangement of Combination Meter

Scheme 96

Scheme 96: Circuit Diagram

CONSULT-II Function (METER A/C AMP)

Refer to CONSULT-II FUNCTION (METER A/C AMP) .

Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or Varies

  1. CHECK FUEL GAUGE FLUCTUATION Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping. Does the indication value vary only during driving or at the instant of stopping? YES: The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal. NO: Ask the customer about the situation when the symptom occurs in detail, and perform the trouble diagnosis.

Fuel Gauge Does Not Move to FULL Position

  1. QUESTION 1 Does it take a long time for the pointer to move to FULL position? YES: GO TO 2 . NO: GO TO 3 .
  2. QUESTION 2 Was the vehicle fueled with the ignition switch ON? YES: Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move to FULL position because of the characteristic of the fuel gauge. NO: GO TO 3 .
  3. QUESTION 3 Is the vehicle parked on an incline? YES: Check the fuel level indication with vehicle on a level surface. NO: GO TO 4 .
  4. QUESTION 4 During driving, does the fuel gauge pointer move gradually toward EMPTY position? YES: Check the fuel level sensor unit. Refer to «FUEL LEVEL SENSOR UNIT CHECK»(ref-234025-S41198795062006052700000) . NO: The float arm may interfere or bind with any of the components in the fuel tank.

FUEL LEVEL SENSOR UNIT CHECK

For removal, refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY .

Check Fuel Level Sensor Unit and Fuel Pump (Main)

Check resistance between fuel level sensor unit and fuel pump (main) connector terminals 2 and 6.

Scheme 97

Scheme 97: Check Fuel Level Sensor Unit and Fuel Pump (Main)

Scheme 98

Scheme 98

Check Fuel Level Sensor Unit (Sub)

Check resistance between fuel level sensor unit and fuel pump (main) connector terminals 6 and 7.

Scheme 99

Scheme 99: Check Fuel Level Sensor Unit (Sub)

Scheme 100

Scheme 100

Scheme 101

Scheme 101: REMOVAL
  1. Remove instrument driver lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
  2. Remove steering column cover. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
  3. Remove screws (2) and remove combination meter.

CAN Communication Unit

Refer to CAN COMMUNICATION UNIT .

Scheme 102

Scheme 102: Schematic

CONSULT-II can display each diagnostic item using the diagnostic test modes (Scheme 103)

Scheme 103

Scheme 103: CONSULT-II Function (METER A/C AMP)

Display Item List

CONSULT-II displayMalfunction is detected when...Reference
CAN COMM CIRC [U1000]Malfunction is detected in CAN communication. CAUTION: Even when there is no malfunction on CAN communication system, malfunction may be misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 seconds) or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected.DTC [U1000] CAN Communication Circuit
METER COMM CIRC [B2202]Malfunction is detected in communication of between combination meter and unified meter and A/C amp.DTC [B2202] Meter Communication Circuit
VEHICLE SPEED CIRC [B2205]When an erroneous speed signal is input for 1 seconds. CAUTION: Even when there is no malfunction on speed signal system, malfunction may be misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 seconds).DTC [B2205] Vehicle Speed Circuit

CONSULT-II DISPLAY REFERENCE - METER A/C AMP

"TIME" indicates the condition of the self-diagnosis results judged by each signal input.

  1. Normal: In case of operating properly at the present in spite of having malfunction in the past, then "TIME" indicates "1-63".
  2. Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, "0" is indicated.

After returning to normal condition, every time when ignition switch is turned to "OFF" from "ON", time will be added like "1" --> "2" --> "3"..."63", and when the key operation is performed 64 times, the result of the self-diagnoses will be erased. And if any malfunction is detected again, "0" will be indicated.

CAUTION"TIME" keeps showing "0" after returning to normal condition only in the case that malfunction history of "CAN COMM CIRC [U1000]" remains because of low tire pressure warning control unit, display control unit (with NAVI) or display unit (without NAVI) malfunction.

Scheme 104

Scheme 104: Operation Procedure
  1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
  2. Touch either "MAIN SIGNALS" or "SELECTION FROM MENU" on the "DATA MONITOR" screen. SELECT DIAGNOSIS MODE DESCRIPTION CHART MAIN SIGNALS Monitors main signals. SELECTION FROM MENU Selects and monitors individual signal.
  3. When "SELECTION FROM MENU" is selected, touch individual items to be monitored. When "MAIN SIGNALS" is selected, main items will be monitored.
  4. Touch "START".
  5. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".
Display item [Unit]MAIN SIGNALSSELECTION FROM MENUContents
SPEED METER [km/h] or [mph]XXThis is the angle correction value after the speed signal from the ABS actuator and electric unit (control unit) is converted into the vehicle speed.
SPEED OUTPUT [km/h] or [mph]XXThis is the angle correction value before the speed signal from the ABS actuator and electric unit (control unit) is converted into the vehicle speed.
TACHO METER [rpm]XXThis is the converted value for the engine speed signal from the ECM.
W TEMP METER [°C] or [°F]XXThis is the converted value for the engine coolant temperature signal from the ECM.
FUEL METER [lit.]XXThis is the processed value for the signal (resistance value) from the fuel gauge.
DISTANCE [km] or [mile]XXThis is the calculated value for the speed signal from the ABS actuator and electric unit (control unit), the signal (resistance signal) from the fuel gauge and fuel consumption from ECM.
FUEL W/L [ON/OFF]XXIndicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF]XIndicates [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF]XIndicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF]XIndicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF]XXIndicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF]XIndicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF]XIndicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF]XIndicates [ON/OFF] condition of turn indicator.
OIL W/L [ON/OFF]XIndicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF]XIndicates [ON/OFF] condition of VDC/TCS OFF indicator lamp.
ABS W/L [ON/OFF]XIndicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF]XIndicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF]XIndicates [ON/OFF] condition of brake warning lamp. *1
M RANGE SW [ON/OFF] *2XXIndicates [ON/OFF] condition of manual mode range switch.
NM RANGE SW [ON/OFF] *2XXIndicates [ON/OFF] condition of except for manual mode range switch.
AT SFT UP SW [ON/OFF] *2XXIndicates [ON/OFF] condition of CVT shift-up switch.
AT SFT DWN SW [ON/OFF] *2XXIndicates [ON/OFF] condition of CVT shift-down switch.

DISPLAY ITEM CONTENTS

Scheme 105

Scheme 105

Note. Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

  1. *1: Monitor keeps indicating "OFF" when brake warning lamp is on by the parking brake operation or low brake fluid level.
  2. *2: Vehicles without manual mode always indicates "OFF".
  3. *3: Vehicles without manual mode always indicates "1".

DIRECTION DISPLAY

Push the switch when the ignition key is in the "ON" or "START" position. The direction will be displayed.

Pushing the "COMP" switch a second time will turn off the display.

  1. If the display reads "C" calibrate the compass by driving the vehicle in 3 complete circles at less than 8 km/h (5 MPH).
  2. To adjust for compass variance: Press the "COMP" switch for more than 3 seconds. The current zone number will appear in the display. Find your current location and variance zone number on the zone map. Press the "COMP" switch until the new zone number appears in the display. After you stop pressing the button in, the display will show a compass direction within a few seconds. NOTE: Do not install the ski rack, antenna, etc. which are attached to the vehicle by means of a magnet. They affect the operation of the compass. If the compass deviates from the correct indication soon after repeated adjustment, have the compass checked at an authorized dealer. The compass may not indicate the correct compass point in tunnels or while driving up or down a steep hill. (The compass returns to the correct compass point when the vehicle moves to an area where the geomagnetism is stabilized.)
  3. Cleaning the Mirror When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing.

"C" is Displayed In the Compass Window

The compass needs to be calibrated. Drive the vehicle in 3 circles at 8 km/h (5 MPH) or less until the display reads a direction. You can also calibrate the compass by driving your vehicle on your everyday routine. The compass will be calibrated once it has tracked 3 complete circles.

Inaccurate Compass Direction

  1. With the display turned on, push the "COMP" switch for 3 seconds, until the zone selection comes up (a number will be displayed in the mirror compass window).
  2. Toggle until correct zone is found and release switch.
  3. The display will show all segments, and return to the normal compass mode within 10 seconds of no switch activity.
  4. If the vehicle changes zone, repeat steps 1 through 3. (Scheme 106)

Scheme 106

Scheme 106

Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)

Note. For oil pressure inspection, refer to OIL PRESSURE CHECK .

Scheme 107

Scheme 107: Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)

Scheme 108

Scheme 108
  1. CHECK IPDM E/R OUTPUT SIGNAL Turn ignition switch OFF. Disconnect oil pressure switch connector. Turn ignition switch ON. CHECK voltage between oil pressure switch harness connector F203 terminal 1 (R/L) and ground. 1 (R/L) - Ground: Approx. 12 V OK or NG OK: GO TO 2 . NG: GO TO 3 .
  2. CHECK OIL PRESSURE SWITCH Turn ignition switch OFF. CHECK oil pressure switch. Refer to «OIL PRESSURE SWITCH»(ref-234025-S25194332052006052800000) . OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-234031-S04459342902006052700000) . NG: Replace oil pressure switch.
  3. CHECK OIL PRESSURE SWITCH CIRCUIT Disconnect IPDM E/R connector. CHECK continuity between IPDM E/R harness connector E9 terminal 57 (P/L) and ground. 57 (P/L) - Ground: Continuity should not exist. OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-234031-S04459342902006052700000) . NG: Repair harness or connector.

OIL PRESSURE SWITCH

Check continuity between oil pressure switch and ground.

ConditionOil pressure kPa (kg/cm 2 , psi)Continuity
Engine stoppedLess than 29 (0.3,4)Yes
Engine runningMore than 29 (0.3,4)No

OIL PRESSURE SWITCH CONTINUITY CONDITION CHART

Scheme 109

Scheme 109

FUNCTION

Power is supplied at all times

  1. through 50A fusible link (letter F , located in the fuse and fusible link block)
  2. to BCM terminal 55
  3. through 10A fuse [No. 18, located in the fuse block (J/B)]
  4. to BCM terminal 42
  5. through 10A fuse [No. 21, located in the fuse block (J/B)]
  6. to key switch terminal 3 (without Intelligent Key), and
  7. to combination meter terminal 21
  8. through 10A fuse [No. 22, located in the fuse block (J/B)]
  9. to key switch and ignition knob switch terminals 1 and 3 (with Intelligent Key)
  10. through 10A fuse [No. 19, located in the fuse block (J/B)]
  11. to unified meter and A/C amp. terminal 21.

When ignition switch ON or START position, power is supplied

  1. through 10A fuse [No. 1, located in the fuse block (J/B)]
  2. to BCM terminal 38
  3. through 10A fuse [No. 12, located in the fuse block (J/B)]
  4. to unified meter and A/C amp. terminal 22
  5. through 10A fuse [No. 14, located in the fuse block (J/B)]
  6. to combination meter terminal 20.

Ground is supplied

  1. to BCM terminal 52
  2. through grounds E13, E26 and E28
  3. to unified meter and A/C amp. terminals 29 and 30
  4. through grounds M14 and M78
  5. to combination meter terminals 22, 23 and 24
  6. through grounds M14 and M78.

Note. When ignition key warning chime, light warning chime, and seat belt warning chime should be conducted at the same time, the priorities for each chime are the following. Light warning chime Ignition key warning chime Seat belt warning chime

IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)

With the key inserted into the ignition switch, and the driver's door is opened, the warning chime will sound. Power is supplied

  1. through key switch terminal 4
  2. to BCM terminal 37. Ground is supplied
  3. through BCM terminal 62
  4. to driver side door switch terminal 4.

Driver side door switch terminal 5 is grounded through grounds M14 and M78.

Unified meter and A/C amp. send door open signal to BCM with CAN communication line.

BCM detects key inserted into the ignition switch, and sends key warning signal to unified meter and A/C amp. with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination meter with communication line between unified meter and A/C amp. and combination meter. When combination meter receives key warning signal, it sounds warning chime.

When Mechanical Key Is Used

With the key inserted into the ignition switch, and the ignition switch LOCK or ACC, when driver's door is opened, the warning chime will sound.

Power is supplied

  1. through key switch and ignition knob switch terminal 4
  2. to BCM terminal 37. Ground is supplied
  3. through BCM terminal 62
  4. to driver side door switch terminal 4.

Driver side door switch terminal 5 is grounded through grounds M14 and M78.

Unified meter and A/C amp. send door open signal to BCM with CAN communication line.

BCM detects key inserted into the ignition switch, and sends key warning signal to unified meter and A/C amp.

with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination meter with communication line between unified meter and A/C amp. and combination meter.

When combination meter receives key warning signal, it sounds warning chime.

When Intelligent Key Is Carried With The Driver

Intelligent Key Unit Detects Ignition Knob Return Is Forgotten, And Sends Key Warning Signal To Intelligent Key Buzzer.

When Intelligent Key buzzer receives key warning signal, it sounds warning chime. Refer to WARNING CHIME FUNCTION .

LIGHT WARNING CHIME

With the key removed from the ignition switch, the driver's door is opened, and the lighting switch in 1st or 2nd position, the warning chime will sound. [Except when headlamp battery saver control operates (for 5 minutes after ignition switch is turned to OFF or ACC position) and headlamps do not illuminate.]

Signal is supplied

  1. from combination switch (lighting switch) terminals 1,2,3, 4, 5, 6, 7, 8, 9 and 10
  2. to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36. NOTE: BCM detected lighting switch in 1st or 2nd position, refer to «COMBINATION SWITCH READING FUNCTION»(ref-234027-S20115673692006052700000) .

Ground is supplied

  1. through BCM terminal 62
  2. to driver side door switch terminal 4.

Driver side door switch terminal 5 is grounded through grounds M14 and M78.

Unified meter and A/C amp. send door open signal to BCM with CAN communication line.

BCM detects headlamps are illuminated, and sends light warning signal to unified meter and A/C amp. with CAN communication line. Unified meter and A/C amp. sends light warning signal to combination meter with communication line between unified meter and A/C amp. and combination meter.

When combination meter receives light warning signal, it sounds warning chime.

SEAT BELT WARNING CHIME

With ignition switch turned ON and seat belt unfastened [seat belt buckle switch (driver side) ON], warning chime will sound for approximately 6 seconds.

Ground is supplied

  1. to combination meter terminal 3
  2. through seat belt buckle switch (driver side) terminal 50.

Seat belt buckle switch (driver side) terminal 65 is grounded through grounds B7 and B20. Combination meter sends seat belt unfastened [seat belt buckle switch (driver side) ON] signal to unified meter and A/C amp. with communication line between unified meter and A/C amp. and combination meter. BCM receives seat belt unfastened [seat belt buckle switch (driver side) ON] signal from unified meter and A/C amp. with CAN communication line, and sends seat belt warning signal to unified meter and A/C amp. with CAN communication line. Unified meter and A/C amp. sends seat belt warning signal to combination meter with communication line between unified meter and A/C amp. and combination meter. When combination meter receives seat belt warning signal, it sounds warning chime.

Refer to CAN COMMUNICATION UNIT .

Scheme 110

Scheme 110: Component Parts and Harness Connector Location

Scheme 111

Scheme 111: Schematic

CONSULT-II Function (BCM)

CONSULT-II can display each diagnostic item using the diagnostic test modes (Scheme 112)

Scheme 112

Scheme 112: DIAGNOSTIC ITEMS DESCRIPTION
Monitored itemALL SIGNALSSELECTION FROM MENUContents
IGN ON SWXXIndicates [ON/OFF] condition of ignition switch.
KEY ON SWXXIndicates [ON/OFF] condition of key switch.
DOOR SW-DRXXIndicates [ON/OFF] condition of front door switch (driver side).
LIGHT SW 1STXXIndicates [ON/OFF] condition of lighting switch.
BUCKLE SWXXIndicates [ON/OFF] condition of seat belt buckle switch (driver side).

DISPLAY ITEM CONTENTS

Test itemMalfunction is detected when...
LIGHT WARN ALMThis test is able to check light warning chime operation. Light warning chime sounds for 2 seconds after touching "ON" on CONSULT-II screen.
IGN KEY WARN ALMThis test is able to check key warning chime operation. Key warning chime sounds for 2 seconds after touching "ON" on CONSULT-II screen.
SEAT BELT WARN TESTThis test is able to check seat belt warning chime operation. Seat belt warning chime sounds for 2 seconds after touching "ON" on CONSULT-II screen.

ACTIVE TEST DISPLAY ITEMS

Monitored ItemCONSULT-II displayDescription
CAN communicationCAN communication [U1000]Malfunction is detected in CAN communication.

DISPLAY ITEM - CAN COMMUNICATION

Note. If "CAN communication [U1000]" is indicated, after printing the monitor item, go to "CAN system". Refer to PRECAUTIONS WHEN USING CONSULT-II .

Scheme 113

Scheme 113: All Warnings Are Not Operated

Scheme 114

Scheme 114
  1. CHECK CHIME OPERATION Select "BCM" on CONSULT-II. Select "BUZZER" on CONSULT-II, and perform "KEY WARN ALM", "LIGHT WARN ALM" or "SEAT BELT ALM" of "ACTIVE TEST". Does chime sound? YES: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NO: GO TO 2 .
  2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL Select "METER A/C AMP" on CONSULT-II. Operate switches meet the requirements to sounds warning chime with "BUZZER" of "DATA MONITOR" and check operation status. "BUZZER" When meet the requirements to: ON sounds warning chime Except above: OFF OK or NG OK: Replace combination meter. NG: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) .

Scheme 115

Scheme 115: Key Warning Chime and Light Warning Chime Does Not Operate (Seat belt Warning Chime Does Operate)

Scheme 116

Scheme 116

Scheme 117

Scheme 117

Scheme 118

Scheme 118

Scheme 119

Scheme 119
  1. CHECK BCM INPUT SIGNAL With CONSULT-II Select "BCM". With "DATA MONITOR" of "BUZZER", confirm "DOOR SW-DR" when the driver side door is operated. "DOOR SW-DR" When driver side door is opened: ON When driver side door is closed: OFF Without CONSULT-II Check voltage between BCM harness connector M36 terminal 62 (SB) and ground. 62 (SB) - Ground When driver side door is opened: Approx. 0 V When driver side door is closed: Approx. 12 V OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: GO TO 2 .
  2. CHECK DRIVER SIDE DOOR SWITCH CIRCUIT Turn ignition switch OFF. Disconnect BCM connector and driver side door switch connector. CHECK continuity between BCM harness connector M36 terminal 62 (SB) and driver side door switch harness connector D10 terminal 4 (SB). 62 (SB) - 4 (SB): Continuity should exist. CHECK continuity between BCM harness connector M36 terminal 62 (SB) and ground. 62 (SB) - Ground: Continuity should not exist. OK or NG OK: GO TO 3 . NG: Repair harness or connector.
  3. CHECK DRIVER SIDE DOOR SWITCH Check continuity between driver side door switch connector terminals 4 and 5 while turning the door switch. 4-5 When driver side door: Continuity should exist. is opened When driver side door: Continuity should not exist. is closed OK or NG OK: GO TO 4 . NG: Replace driver side door switch.
  4. CHECK DRIVER SIDE DOOR SWITCH GROUND CIRCUIT Check continuity between driver side door switch harness connector D10 terminal 5 (B) and ground. 5 (B) - Ground: Continuity should exist. OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: Repair harness.

Scheme 120

Scheme 120: Key Warning Chime Does Not Operate (Without Intelligent Key)

Scheme 121

Scheme 121

Scheme 122

Scheme 122

Scheme 123

Scheme 123

Scheme 124

Scheme 124
  1. CHECK FUSE Check if the key switch 10A fuse [No. 21, located in the fuse block (J/B)] is blown. Refer to «WIRING DIAGRAM - CHIME»(ref-234025-S06442989302006052800000) . Is the fuse blown? YES: Replace fuse. Be sure to repair the cause of malfunction before installing new fuse. NO: GO TO 2 .
  2. CHECK WARNING CHIME OPERATION Check the chime under conditions in exception of key warning chime (without Intelligent Key) operation. Does warning chime sound? YES: GO TO 3 . NO: Go to «ALL WARNINGS ARE NOT OPERATED»(ref-234025-S08804782182006052800000) or «KEY WARNING CHIME AND LIGHT WARNING CHIME DOES NOT OPERATE (SEAT BELT WARNING CHIME DOES OPERATE)»(ref-234025-S23852568192006052800000) .
  3. CHECK BCM INPUT SIGNAL With CONSULT-II Select "BCM". With "DATA MONITOR" of "BUZZER", confirm "KEY ON SW" when the key is operated. "KEY ON SW" When key is inserted to ignition key cylinder: ON When key is removed from ignition key cylinder: OFF Without CONSULT-II Check voltage between BCM harness connector M34 terminal 37 (B/R) and ground. 37 (B/R) - Ground When key is inserted to ignition: Approx. 12 V key cylinder When key is removed from: Approx. 0 V ignition key cylinder OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: GO TO 4 .
  4. CHECK KEY SWITCH Disconnect key switch connector. CHECK continuity between key switch connector M28 terminals 3 and 4. 3-4 When key is inserted to: Continuity should exist. ignition key cylinder When key is removed: Continuity should not from ignition key cylinder exist. OK or NG OK: GO TO 5 . NG: Replace key switch.
  5. CHECK KEY SWITCH CIRCUIT Disconnect BCM connector. CHECK continuity between BCM harness connector M34 terminal 37 (B/R) and key switch harness connector M28 terminal 4 (B/R). 37 (B/R) - 4 (B/R): Continuity should exist. CHECK continuity between BCM harness connector M34 terminal 37 (B/R) and ground. 37 (B/R) - Ground: Continuity should not exist. OK or NG OK: GO TO 6 . NG: Repair harness or connector.
  6. CHECK KEY SWITCH POWER SUPPLY CIRCUIT Check voltage between key switch harness connector M28 terminal 3 (Y/R) and ground. 3 (Y/R) - Ground: Battery voltage OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: Check harness for open between key switch and fuse.

Scheme 125

Scheme 125: Key Warning Chime Does Not Operate (With Intelligent Key, When Mechanical Key Is Used)

Scheme 126

Scheme 126

Scheme 127

Scheme 127

Scheme 128

Scheme 128

Scheme 129

Scheme 129
  1. CHECK FUSE Check if the key switch 10A fuse [No. 22, located in the fuse block (J/B)] is blown. Refer to «WIRING DIAGRAM - CHIME»(ref-234025-S06442989302006052800000) . Is the fuse blown? YES: Replace fuse. Be sure to repair the cause of malfunction before installing new fuse. NO: GO TO 2 .
  2. CHECK WARNING CHIME OPERATION Check the chime under conditions in exception of key warning chime (when mechanical key is used) operation. Does warning chime sound? YES: GO TO 3 . NO: Go to «ALL WARNINGS ARE NOT OPERATED»(ref-234025-S08804782182006052800000) or «KEY WARNING CHIME AND LIGHT WARNING CHIME DOES NOT OPERATE (SEAT BELT WARNING CHIME DOES OPERATE)»(ref-234025-S23852568192006052800000) .
  3. CHECK BCM INPUT SIGNAL With CONSULT-II Select "BCM". With "DATA MONITOR" of "BUZZER", confirm "KEY ON SW" when the key is operated. "KEY ON SW" When key is inserted to ignition key cylinder: ON When key is removed from ignition key cylinder: OFF Without CONSULT-II Check voltage between BCM harness connector M34 terminal 37 (B/R) and ground. 37 (B/R) - Ground When key is inserted to ignition: Approx. 12 V key cylinder When key is removed from: Approx. 0 V ignition key cylinder OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: GO TO 4 .
  4. CHECK KEY SWITCH POWER SUPPLY CIRCUIT Disconnect key switch connector. CHECK voltage between key switch and ignition knob switch harness connector M118 terminal 3 (G/Y) and ground. 3 (G/Y) - Ground: Battery voltage OK or NG OK: GO TO 5 . NG: Check harness between key switch and fuse.
  5. CHECK KEY SWITCH Check continuity between key switch and ignition knob switch connector M118 terminals 3 and 4. 3-4 When key is inserted to: Continuity should exist. ignition key cylinder When key is removed: Continuity should not from ignition key cylinder exist. OK or NG OK: GO TO 6 . NG: Replace key switch and ignition knob switch.
  6. CHECK KEY SWITCH CIRCUIT Disconnect BCM connector. CHECK continuity between BCM harness connector M34 terminal 37 (B/R) and key switch and ignition knob switch harness connector M118 terminal 4 (B/R). 37 (B/R) - 4 (B/R): Continuity should exist. CHECK continuity between BCM harness connector M34 terminal 37 (B/R) and ground. 37 (B/R) - Ground: Continuity should not exist. OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: Repair harness or connector.

Key Warning Chime Does Not Operate (With Intelligent Key, When Intelligent Key Is Carried With The Driver).

Refer to WARNING CHIME FUNCTION MALFUNCTION .

Scheme 130

Scheme 130: Light Warning Chime Does Not Operate
  1. CHECK WARNING CHIME OPERATION Check the chime under conditions in exception of light warning chime operation. Dose warning chime sound? YES: GO TO 2 . NO: Go to «ALL WARNINGS ARE NOT OPERATED»(ref-234025-S08804782182006052800000) .
  2. CHECK BCM INPUT SIGNAL Select "BCM" on CONSULT-II. With "DATA MONITOR" of "BUZZER", confirm "LIGHT SW 1ST" when the lighting switch is operated. "LIGHT SW 1ST" When lighting switch is in 1st position: ON When lighting switch is OFF: OFF OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: Replace lighting switch. Refer to «LIGHTING AND TURN SIGNAL SWITCH»(ref-234024-S33338199312006052800000) .

Scheme 131

Scheme 131: Seat Belt Warning Chime Does Not Operate

Scheme 132

Scheme 132

Scheme 133

Scheme 133

Scheme 134

Scheme 134

Scheme 135

Scheme 135
  1. CHECK WARNING CHIME OPERATION Check the chime under conditions in exception of seat belt warning chime operation. Does warning chime sound? YES: GO TO 2 . NO: Go to «ALL WARNINGS ARE NOT OPERATED»(ref-234025-S08804782182006052800000) .
  2. CHECK BCM INPUT SIGNAL Select "BCM". With "DATA MONITOR" of "BUZZER", confirm "BUCKLE SW" when the seat belt buckle switch is operated. "BUCKLE SW" When seat belt is fastened: OFF When seat belt is unfastened: ON OK or NG OK: Replace BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) . NG: GO TO 3 .
  3. CHECK COMBINATION METER INPUT SIGNAL Turn ignition switch ON. CHECK voltage between combination meter harness connector M25 terminal 3 (LG) and ground. 3 (LG)-Ground When seat belt is fastened: Approx. 12 V When seat belt is unfastened: Approx. 0 V OK or NG OK: Replace combination meter. NG: GO TO 4 .
  4. CHECK SEAT BELT BUCKLE SWITCH Turn ignition switch OFF. Disconnect seat belt buckle switch (driver side) connector. CHECK continuity between seat belt buckle switch (driver side) connector B308 terminals 50 and 65. 50-65 When seat belt is: Continuity should not exist. fastened When seat belt is: Continuity should exist. unfastened OK or NG OK: GO TO 5 . NG: Replace seat belt buckle switch (driver side).
  5. CHECK SEAT BELT BUCKLE SWITCH CIRCUIT Disconnect combination meter connector. CHECK continuity between combination meter harness connector M25 terminal 3 (LG) and seat belt buckle switch (driver side) harness connector B308 terminal 50 (Y). 3 (LG) - 50 (Y): Continuity should exist. CHECK harness continuity between combination meter harness connector M25 terminal 3 (LG) and ground. 3 (LG) - Ground: Continuity should not exist. OK or NG OK: GO TO 6 . NG: Repair harness or connector.
  6. CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT Check continuity between seat belt buckle switch (driver side) harness connector B308 terminal 65 (B) and ground. 65 (B) - Ground: Continuity should exist. OK or NG OK: Replace combination meter. NG: Repair harness or connector.